Parameters of cone breaking of Nanchang mining machine
grade I
1) very severe intellectual impairment
2) quadriplegic muscle strength ≤ 3 or triceps muscle strength ≤ 2
3) paraplegia above neck 4, muscle strength ≤ 2 grade
4) severe dyskinesia (non limb paralysis)
5) severe facial disfigurement accompanied with one of the secondary disabilities in table B.2
6) severe scar formation in the whole body, accounting for more than 90% of the body surface area, accompanied by the loss of spinal and limb joint function
7) loss of function above elbow joint
8) high loss of both lower limbs and high loss of one upper limb
9) severe scar deformity of both lower limbs and one upper limb, loss of activity function
10) no light perception or only light perception in both eyes, but the light location is not accurate
11) severe lung function injury and dyspnea grade IV, requiring lifelong dependence on mechanical ventilation
12) double lung or heart lung transplantation
13) small bowel resection ≥ 90%
14) orthotopic liver transplantation after hepatectomy
15) orthotopic liver transplantation for biliary tract injury
16) total pancreatectomy
17) after bilateral nephrectomy or solitary nephrectomy, maintenance with dialysis or allogeneic renal transplantation, renal insufficiency in uremic stage
18) stage III pneumoconiosis with severe lung function injury and / or severe hypoxemia [PO2 & lt; 5.3 kPa(40 mmHg)];
19) other occupational lung diseases with severe lung injury and / or severe hypoxemia [PO2 & lt; 5.3 kPa(40 mmHg)];
20) after radiation pneumonitis, more than two lobes of pulmonary fibrosis accompanied by severe hypoxemia [PO2 & lt; 5.3 kPa(40 mmHg)];
21) occupational lung cancer with severe lung function injury
22) occupational hepatic angiosarcoma with severe liver function damage
23) liver cirrhosis with esophageal vein rupture and bleeding, severe damage of liver function
24) in uremic stage of renal insufficiency, the clearance rate of endogenous creatinine was 10 ml / min, or the level of plasma creatinine was & gt; 707 }imal/L(8 mg/dL)
note: 2 in PO2 is a severe intelligence injury in the inferior horn
2) three limb paralysis muscle strength grade 3
3) hemiplegic muscle strength ≤ grade 2
4) paraplegic muscle strength ≤ grade 2
5) the muscle strength of both hands was less than or equal to grade 3
6) complete sensory or mixed aphasia
7) severe scar formation in the whole body, accounting for more than 80% of the body surface area, accompanied by limitation of more than three activities in the major joints of the extremities
8) total scar or skin graft with severe disfigurement
9) bilateral forearm loss or complete loss of hand function
10) high loss of both lower limbs
11) scar deformity of both lower limbs, complete loss of function
12) both knees and ankles were stiff in non functional position
13) loss above the knees
14) complete loss of function of both knees and ankles
15) scar deformity of ipsilateral upper and lower limbs, complete loss of function
16) patients with complete loss of function of more than four joints in major joints (shoulder, hip, knee and elbow)
17) with or without light perception in one eye, corrected visual acuity ≤ 0.02 in the other eye, or visual field ≤ 8% (or radius ≤ 5 °);
18) no swallowing function, completely dependent on gastric tube feeding
19) complete defect of bilateral superior collars
20) complete defect of bilateral lower collars
21] one side of maxilla and the opposite side of lower collar bone were completely defected, accompanied by facial soft tissue defect & gt; 30 cm2 (Note: 2 is the square)
22) one side pneumonectomy with thoracoplasty, dyspnea grade III
23) cardiac insufficiency grade 3
24) after esophageal atresia or injury, esophageal reconstruction could not be performed, and feeding depended on gastrostomy or jejunostomy
25) 3 / 4 small bowel resection with short bowel syndrome
26) hepatectomy was performed in 3 / 4 patients with severe liver damage
27) portal hypertension triad or Budd Chiari syndrome after liver injury
28) severe damage of liver function caused by bile ct injury
29) subtotal pancreatectomy after pancreas transplantation
30) after partial nephrectomy of solitary kidney, renal insufficiency was decompensated
31) severe lung injury and / or severe hypoxemia
32) stage III pneumoconiosis with moderate lung function injury and / or moderate hypoxemia
33) pneumoconiosis stage II with severe lung function injury and / or severe hypoxemia [PO2 & lt; 5.3 kPa(40 mmHg)];( Note: 2 in PO2 is subscript)
34) pneumoconiosis stage III with active pulmonary tuberculosis
35) occupational lung cancer or pleural mesothelioma
36) occupational acute leukemia
37) acute severe aplastic anemia
38) chronic severe toxic liver disease
39) hepatic angiosarcoma
40) in uremic stage of renal insufficiency, the endogenous creatinine clearance rate or plasma creatinine level remained & gt; four hundred and fifty μ mol/L,
(5 mg/dL);
41) occupational bladder cancer
42) radiation tumor
grade 3
1) psychotic symptoms were dangerous or impulsive behaviors
2) psychotic symptoms lead to lack of self-care ability
3) severe epilepsy
4) hemiplegic muscle strength grade 3
5) paraplegic muscle strength grade 3
6) the muscle strength of both feet was less than or equal to grade 2
7) moderate dyskinesia (non limb paralysis)
8) complete apraxia, agraphia, dyslexia and agnosia have two or more items
9) severe scar formation in the whole body, accounting for more than 70% of the body surface area, accompanied by limitation of more than two activities in the major joints of the extremities
10) facial scar or skin graft ≥ 2 / 3 with moderate disfigurement
11) one hand was missing and the other thumb was missing
12) the thumb and index finger of both hands were missing or completely lost
13) unilateral supraelbow deletion
14) the function of one hand was completely lost, and that of the other hand was lost
15) in both hips and knees, one joint is absent or has no function, and the other joint can not reach 0 °~ nine ° The first is the person who is the person who is the person who is the person who is the person who is the person who is the person who is the person who is the person who is the person who is the person who is the person who is the person who is the person
16) unilateral deformity of hip and knee joint, complete loss of function
17) non ipsilateral supracarpal and supramalleolar defects
18) non ipsilateral upper and lower extremity scar deformity, complete loss of function
19) with or without light perception in one eye, corrected visual acuity in the other eye ≤ 0.05 or visual field ≤ 16% (radius ≤ 10 °);
20) binocular corrected visual acuity & lt; 05 or visual field ≤ 16%) radius ≤ 10 °);
21) one eye was enucleated or the orbital contents were enucleated, and the corrected visual acuity of the other eye was & lt; 1 or field of vision ≤ 24% (or radius ≤ 15%) °);
22) breathing completely depends on trachea cannula or stoma
23) dyspnea (laryngogenic) at rest or only slight activity
24) ipsilateral maxilla and mandible complete defect
25) complete defect of one side of maxilla with facial soft tissue defect & gt; 30 cm2 (Note: 2 is square)
26) complete mandibular defect with facial soft tissue defect & gt; 30 cm2 (Note: same as above)
27) tongue defect & gt; 2 / 3 of the total tongue
28) unilateral pneumonectomy with thoracoplasty
29) one side of thoracoplasty, with more than 6 ribs removed
30) unilateral pneumonectomy and carinoplasty
31) unilateral pneumonectomy with vascular substitute for revascularization
32) third degree atrioventricular block
33) hepatectomy was performed in 2 / 3 patients with moderate damage of liver function
34) subtotal pancreatectomy, insulin dependence
35) unilateral nephrectomy, contralateral renal insufficiency and decompensation
36) bilateral ureteral stricture, renal insufficiency and decompensation
37) permanent abdominal ureterostomy
38) total cystectomy
39) pneumoconiosis stage Ⅲ
40) pneumoconiosis stage II with moderate lung injury and / or moderate hypoxemia
41) pneumoconiosis stage II complicated with active pulmonary tuberculosis
42) after radiation pneumonitis, pulmonary fibrosis occurred in both lobes, accompanied by moderate lung injury and / or moderate hypoxemia
43) agranulocytosis
44) aplastic anemia
45) occupational chronic leukemia
46) toxic hematopathy, myelodysplastic syndrome
47) toxic hematopathy, severe bleeding or platelet content ≤ 2 × 1010 (Note: the 10th power of 10) / L
48) arsenic skin cancer
49) radiation skin cancer
grade 4
1) moderate intellectual impairment
2) psychopathic symptoms lead to lack of social skills
3) the muscle strength of single limb paralysis was less than or equal to grade 2
4) muscle strength of partial paralysis of both hands is less than or equal to grade 2
5) the muscle strength of one hand was less than or equal to grade 2
6) cerebrospinal fluid leakage with skull base bone defect can not be repaired or repeated operation failure
7) moderate facial disfigurement
8) the scar area of the whole body is more than or equal to 60%, and the function of one of the joints is limited
9) facial scar or skin graft ≥ 1 / 2 with mild disfigurement
10) complete loss or no function of both thumbs
11) the function of one hand was completely lost, and that of the other hand was partially lost
12) one side was missing below the knee and the other side was missing the forefoot
13) loss above the knee on one side
14) one foot was missing below the ankle, the other foot was deformed, and it was difficult to walk
15) loss or no function below the knees
16) with or without light perception in one eye, corrected visual acuity in the other eye & lt; 2 or field of vision ≤ 32% (or radius ≤ 20%) °) ;
17) one eye corrected visual acuity & lt; The corrected visual acuity of the other eye was ≤ 0.1
18) binocular corrected visual acuity & lt; 1 or field of vision ≤ 32% (or radius ≤ 20%) °);
19) binaural hearing loss ≥ 91dB
20) when the teeth are closed or the esophagus is narrow, only liquid food can be fed
21) 1 / 2 maxilla defect with facial soft tissue defect & gt; 20 cm2 (Note: 2 is square)
22) the length of lower collar bone defect was more than 150px, accompanied by oral and facial soft tissue defects & gt; 20 cm2 (Note: 2 is square)
23) bilateral temporomandibular joint was bony ankylosis, and the mouth could not be opened at all
24) penetrating defect of cheek & gt; 20 cm2 (Note: 2 is square)
25) bilateral complete facial paralysis
26) unilateral pneumonectomy
27) bilateral lobectomy
28) after lobectomy and thoracoplasty
29) after lobectomy and carinoplasty
30) unilateral lung transplantation
31) after heart valve replacement
32) cardiac insufficiency grade 2
33) patients with anastomotic stricture after esophageal reconstruction can only enter liquid food
34) total gastrectomy
35) pancreatectomy and odenectomy
36) small bowel resection 3 / 4
37) 2 / 3 small bowel resection, including ileocecal resection
38) total resection of colon, rectum and anus and ileostomy
39) severe anal defecation disorder or incontinence after trauma
40) hepatectomy 2 / 3
41) liver function was slightly damaged after hepatectomy
42) moderate damage of liver function caused by bile ct injury
43) severe impairment of thyroid function
44) after renal repair, renal insufficiency was decompensated
45) after ureteroplasty, renal insufficiency was decompensated
46) permanent cystostomy
47) severe dysuria
48) neurogenic bladder, resial urine ≥ 50 ml
49) for urethral stricture, dilation should be performed regularly
50) bilateral adrenal defect
51) bilateral ovariectomy in infertile women
52) pneumoconiosis stage II
53) pneumoconiosis stage I with moderate lung function injury or moderate hypoxemia
54) pneumoconiosis stage I with active tuberculosis
55) sick sinus syndrome
56) adrenocortical function decreased significantly
57) the immune function decreased significantly< Grade 5
1) moderate epilepsy
2) quadriplegic muscle strength grade 4
3) the muscle strength of single limb paralysis was grade 3
4) the muscle strength of both hands was grade 3
5) the muscle strength of one hand was grade 3
6) the muscle strength of both feet was grade 3
7) complete motor aphasia
8) complete apraxia, loss of writing, loss of reading, loss of recognition, etc
9)
The specification parameters of cone crusher are as follows:
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extended data:
classification of cone crusher:
1, SMG series
SMG series hydraulic cone crusher on the basis of summarizing the advantages of various crushing cavity types, through theoretical analysis and practical test, The SMG series hydraulic cone crusher designed by the engineer has a variety of crushing cavity types to choose from
When the unbreakable foreign matters pass through the crushing chamber or the machine is overloaded for some reason, the spring safety system of the spring cone crusher can realize the safety and increase the ore discharge. The foreign matter is discharged from the crushing cavity. If the foreign matter is stuck at the ore outlet, the cavity cleaning system is used to make the ore discharge continue to increase HPC series high efficiency hydraulic cone crusher has the world's advanced level of high energy crusher, which is a perfect combination of crushing speed, eccentricity (stroke) and high performance crushing cavity design. It not only improves the proction capacity and crushing efficiency, but also expands the scope of application source of reference: Network cone crusher
Model crushing head bottom diameter (mm) maximum feed rate (mm) discharge adjustment range (mm) crushing output (T / h) motor power (kw) eccentric shaft speed (R / min) weight (T) overall dimension (mm) pyb600 600 75 12-25 40 30 356 5 2234 × one thousand three hundred and seventy × 1675 PYZ600 600 35 3-13 5-23 30 356 5.3 2234 × one thousand three hundred and seventy × 1675 PYB900 900 115 15-50 50-90 55 333 11.2 2692 × one thousand six hundred and forty × 2350 PYZ900 900 60 5-20 20-65 55 333 11.2 2692 × one thousand six hundred and forty × 2350 PYD900 900 50 3-13 15-50 55 333 11.3 2692 × one thousand six hundred and forty × 2350 PYB1200 1200 145 20-50 110-168 110 300 24.7 2790 × one thousand eight hundred and seventy-eight × 2844 PYZ1200 1200 100 8-25 42-135 110 300 25 2790 × one thousand eight hundred and seventy-eight × 2844 PYD1200 1200 50 3-15 18-105 110 300 25.3 2790 × one thousand eight hundred and seventy-eight × 2844 PYB1750 1750 215 25-50 280-480 160 245 50.3 3910 × two thousand eight hundred and ninety-four × 3809 PYZ1750 1750 185 10-30 115-320 160 245 50.3 3910 × two thousand eight hundred and ninety-four × 3809 PYD1750 1750 85 5-13 75-230 160 245 50.2 3910 × two thousand eight hundred and ninety-four × 3809 PYB2200 2200 300 30-60 490-750 260-280 220 80 4622 × three thousand three hundred and two × 4470 PYZ2200 2200 230 10-30 200-580 260-280 220 80 4622 × three thousand three hundred and two × 4470 PYD2200 2200 100 5-15 120-340 260-280 220 81.4 4622 × three thousand three hundred and two × 4470
The above are the technical parameters of spring cone crusher, which can be referred to
About the working principle of cone crusher and the role of each part, we summarized the main situation as follows, hoping to help you:
I. working principle of cone crusher
in the working process of cone crusher, the motor drives the eccentric sleeve to rotate through the transmission device, and the moving cone rotates and swings under the force of eccentric sleeve, The section of the moving cone near the static cone becomes the crushing cavity, and the material is crushed by the repeated extrusion and impact of the moving cone and the static cone. When the moving cone leaves the section, the material which has been broken to the required size falls under its own gravity and is discharged from the bottom of the cone
Second, the role of different parts of the cone crusherthe moving cone and the fixed cone cooperate with each other to achieve the crushing of materials, and the hydraulic system is used to adjust the size of the ore outlet of the crusher, and the hydraulic system can effectively ensure the safe operation of the equipment. When there is a foreign matter in the crushing cavity, the hydraulic system can make the moving cone fall back automatically. When the foreign matter is discharged, the system can make the falling moving cone reset automatically
this paper mainly introces the working principle of cone crusher and its role in the reproction of different parts. We mainly analyze the role of moving cone, fixed cone and hydraulic system. For other questions about cone crusher, please consult:// www.shibangchina.com Hope to help you
(2) crushing cavity type, which refers to the geometric space formed between the moving cone and the fixed cone. The shape of crushing cavity has a great influence on the performance of the whole machine. The cavity shape of crusher is the main technical index of crushing. The machine has four kinds of cavity designs from coarse crushing to fine crushing. It has six possible combinations, which means that it can best meet the special requirements of users
(3) reliable sealing: labyrinth sealing device is used to replace the water seal used in the past, so that st and impurities can not enter the body, so as to ensure the cleanness of lubricating oil, prolong the service life of sliding bearing and thrust ball bearing, and make the machine run reliably.
(4) convenient replacement: in the past, the replacement of crushing wall of crusher was very slow, The new structure of cone crusher can replace the crushing wall very quickly. Because the upper crushing wall is equipped with a clip, the crushing wall is fixed by jacking up with bolts. The lower crushing wall is fixed by hydraulic nuts. There is no need to add any filling material on the back of the upper and lower crushing walls, so the replacement speed reces the labor intensity of workers
cone crusher is divided into standard type and short head type, which is generally used for medium and fine crushing. The standard type is generally used for secondary damage, that is, medium damage. The short head type is generally used for fine breaking, that is, final breaking. Simons cone crusher has four cavity types. They are very thick, thick, medium and fine. The principle of selection depends on the size of feeding and discharging particles. If the feeding degree is large and the proct size is coarse, select extra coarse type or coarse type, and vice versa. In the calculation of feed size, the maximum feed size of open edge is multiplied by 0.85 as the basis for selecting feed size, and the average size of proct is the maximum feed divided by crushing ratio. Simmons cone crusher standard type is mostly used for open circuit circulation, short head type is mostly used for closed circuit circulation
when selecting liners, users must generally consider three factors: output, power consumption and wear resistance of liners; The change of particle size and the distribution of feed particle size; Hardness of material; Wear resistance of materials
the longer the liner, the higher the power consumption. The short liner is selected for hard materials and the long liner is selected for soft materials. In terms of material distribution, the short liner is selected for fine materials and the long liner is selected for coarse materials. Generally speaking, the distribution of feed particle size should not be more than 10% smaller than that of closed side discharge port. If it is more than 10%, the power consumption will increase and the proct particle size will become flake. The increase of moisture content of viscous materials can affect the throughput of materials. Generally speaking, the moisture content of materials is less than 5%. In the use of power: standard cone crusher should reach 75% ~ 80%, short head cone crusher should reach 80% ~ 85%
cone crusher e to its bad use environment, st, and some use of the unit maintenance is not in place, often appear in the operation of a variety of problems, generally speaking, cone crusher in use and operation should pay attention to the following problems, in order to ensure the normal operation of the machine
ring the operation, the feeding should be uniform and no segregation is allowed. If the feeding is uneven, the proction capacity will be reced, the proct size is too large, the spring action is frequent, the pressure of the bowl bearing is high, and the power consumption will rise
1. There should be iron removal device to prevent the crushing chamber from iron overload. If iron overload occurs frequently, the shaft may be broken
2. Full load proction is required, otherwise the proct will be too coarse
3. The crushing ratio distribution in the proction line should be reasonable, so as to maximize the efficiency of the crusher
4. The spring pressure should not be too tight. If the pressure is too high, the shaft will be broken. If the pressure is too small, the spring will jump frequently, which will affect the normal operation of the crusher, and the proct size will become coarse
5. The temperature of lubricating oil should not be too high or too low, otherwise the operation of the machine will be affected
6. The lubricating oil should be changed frequently, and it should not be too dirty. If it is too dirty, it will accelerate the wear of gears, bowl shaped Bush and shaft sleeve, and even cause the shaft sleeve to grind to death
7. The drive belt should not be installed too tightly, otherwise the drive shaft will not rotate flexibly or break; It can't be too loose, otherwise it will cause the crusher boring
8. The feeding material should not be too wet and sticky, and the fine particles should not be too much or too large, otherwise it will cause stuffy car
9. Ore accumulation at the discharge port of the crusher will also cause choking.