Plate feeder

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2. With planetary recer, medicine zero, no two, Liu Qi no together!...

3. blockchain, for example, bitcoin, bitcoin is supported by blockchain, and blockchain is run by everyone

4. Plate feeder belongs to group 0734, category 7 of trademark classification
according to the statistics of road sign network, 111 trademarks of plate feeder have been registered< How to choose other categories ring registration:
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3. There are 2 trademarks in the category of (flotation machine, group number: 0730), The registration rate is 1.8%
4. There are 2 trademarks in the category of sewage pump (machine), group number: 0749, and the registration rate is 1.8%
5. There are 2 trademarks in the category of slag screen (machine), group number: 0730, and the registration rate is 1.8%
6. There are 2 trademarks in the category of washing machine, group number: 0730, The registration rate is 1.8%
7. There are 2 trademarks in the category of mixer (group number: 0753), and the registration rate is 1.8%
8. There are 2 trademarks in the category of solution pump (machine), group number: 0749, and the registration rate is 1.8%
9. There is 1 trademark in the category of pump (machine, engine or motor), and group number: 0749, The registration rate is 0.9%
10. There is one trademark selected for registration (hydrocyclone, group number: 0730), and the registration rate is 0.9%

5.

Only three orebodies in the East, middle and West are delineated in the open pit mining design

8.1.4.1 the boundary of open-pit mining is delineated by the principle that the stripping ratio of boundary is equal to or less than the economic and reasonable stripping ratio. According to the deposit conditions, the economic and reasonable stripping ratio is determined as 8m < sup > 3 < / sup > / M < sup > 3 < / sup >

The final slope angle of the open pit was determined as 45 by analogy °

The following parameters are adopted when delineating the open pit mining boundary: ① stage height: considering the gentle dip angle of ore body and irregular boundary, in order to rece the ore loss rate and dilution rate, the working stage height is determined as 10m, and the final stage height is 20m. ② Stage slope angle: after merging, the final stage slope angle is 650. The upper part of the West orebody is covered by the Quaternary strata of 600. ③ The width of transportation platform is 16.5m. ④ Width of safety cleaning platform: after merging, the platform is both safe and cleaning platform, and the width is 7m

according to the determined boundary stripping ratio and selected slope parameters, the elevation of each profile is shown in table 8.10

Table 8.10 summary of delineation elevation of each section of open pit; The middle orebody is 960m; The West orebody is 820m. The characteristics of mining boundary are shown in table 8.11

Table 8.11 characteristics of mining boundary of tumultaoligai open pit mine. There are weathering fissures and structural fissure aquifers in the mining area. The groundwater is mainly supplied by rainfall. The groundwater level is 45-94.17m deep, and the hydrological conditions are simple

The final slope angle of

design is shown in table 8.12

Table 8.12 design slope angle of tumultaoligai mine stope

the design slope can basically ensure the overall slope stability, but local sliding may also occur, so it is necessary to pay attention to monitoring in proction, and take appropriate measures to deal with and prevent slope sliding

In the proction, we should pay attention to the slope maintenance, do a good job in mine waterproof and drainage, use controlled blasting when leaning against the slope, manually process the local slope, monitor the rock movement, and do a good job in landslide prediction. A qlg-150 submersible drilling machine and a 2m < sup > 3 < / sup > front loader are equipped for slope treatment

8.1.4.3 mine scale and service life

1) proct scheme and mine scale

According to the degree of oxidation, ores can be divided into primary ore and oxidized ore. The oxidized ore is distributed in the middle and East orebodies, and the depth of oxidized zone is 20-36m. The lower part of the middle and East orebodies and the West orebodies are all primary ores. The instrial reserve of oxide ore is 1.08 million tons, accounting for only 5% of the total ore

According to the types of ore instry, it can be divided into open hearth ore, blast furnace ore and sulfur ore. Blast furnace ore and open hearth ore only account for 5.5% of the geological reserves, and most of them are sulfur bearing ore

2) proction capacity verification

Verify the proction capacity according to the number of shovels that can be arranged. According to the delineation result of open pit boundary, the surface of open pit is 1020m long and 510m wide. There are three orebodies in the East, middle and west of the open pit. The occurrence conditions of the orebodies are complex, and the thickness of the orebodies varies from 30 m to 100 m. When mining, it is impossible to divide single mining bench and stripping bench. The electric shovel working on each bench not only mines but also stripping

at the level of 950-1000m, that is, five levels below the closure, e to the overburden of 30-100m in the west ore body, the stripping ratio of each layer is very large, and the average stripping ratio of the maximum five layers is 12t / T. The average length and width of the stope in this section are 950m and 300m respectively. If the average width of the working platform is 60m, the working line length of the electric shovel is 200-400m, and the number of working steps is 4-5, each step can be arranged with 8 electric shovels according to the calculation of two electric shovels. If the efficiency of electric shovel is 2 million / t set / year, the total amount of mining and stripping can be 16 million T, and the ore proction capacity can reach 1.2 million T / year

below the 950m level, the stope area of the east mine is very small, but the layered ore quantity of the west ore body has reached 500000 ~ 1 million tons, and the average length and width of the West stope in this section are 500m and 250m. There are 4 working steps at the same time, and each step can be arranged with 4 electric shovels. 8 million tons of mining and stripping can be completed every year. But at this time, the average stripping ratio of the four levels is 3t / T, so the ore proction capacity can reach 2 million / T year

The East orebody below the level of

910m has been mined out, only the West orebody is mined out. The average length and width of the West stope are 400m and 170m, and there are three proction steps. According to the calculation of one electric shovel for each step, the total stripping amount can be 6 million tons. In this interval, the stripping ratio is 0.7 ~ 1.0t/t, and the ore proction capacity is 1 million / T year, which can be fully guaranteed

The proction capacity was verified according to the deepening speed of mine engineering. According to the rock quantity table provided in the open pit boundary of Tumur taoligai mine, in order to achieve the proction capacity of 1 million / T year, the required deepening speed of the open pit project is shown in table 8.13

Table 8.13 deepening speed of mine engineering required for annual output of 1 million tons of ore. Among them, 1010-1040m is open hillside

the proction period of the mine is 21 years, in which the slope open-air decline rate is 30 m / year, only 1-2 years. It is required to drop 20 m at four levels below the closed mouth (i.e. two levels per year). Due to the convenience and flexibility of car mining, the required drop speed can be achieved as long as the management is strengthened and the efficiency of electric shovel is guaranteed to be 1.6-2 million T / set per year. However, under 970m level, the decline rate of most of the mine proction period is within 12m / year, which can be completely completed for automobile mining. To sum up, from the perspective of mine engineering deepening speed, it is verified that the annual output of 1 million tons of ore in the mine can be achieved

(3) mine working system

continuous working system is adopted in the mine, with annual working days of 330 days for mining and 340 days for rock stripping, 3 shifts per day and 8 hours per shift. The annual working days of main equipment in open pit mine are 300 days for excavator and 310 days for cone drill. The medium blasting is carried out in the day shift, once every 3-5 days, and the ore and rock volume of each blasting is 7-15 days of the electric shovel; Shallow hole drilling and blasting and secondary crushing of ore and rock are carried out in the day shift, once a day

4) mine service life

the service life of the mine is 21 years, including 17 years of stable proction

8.1.4.4 ore deposit development, mining methods and perforation, blasting, shipping work (1) development mode selection

Tumur taoligai open pit mine has a surface length of 1020m and a width of 510m, with a total of 3 orebodies delineated. The closed entrance is in the northeast of the stope, the crushing field and the main mp are in the East and north of the stope, and the distance from the entrance and exit is 0.25km and 0.7km respectively. The surface of the mining area is composed of three hills with a specific height of 40-57.5m. There are only four mining stages in the hillside. The East, middle and west ore bodies below the surface are 245m, 150m and 400m long respectively. According to the different occurrence depth, the delineated results are more than 960m, and the East, middle and West are one stope. Below 960m, it is divided into East and West stopes. The bottom elevation of open air is 910m and 820m respectively. There are 19 mining stages below the closed mouth

The middle and East orebodies are exposed on the surface, while the West orebody has a thick overburden. The mining procere is that the middle and East orebodies are mined first, and then the West orebodies are mined; It can rece the amount of rock stripping in infrastructure construction, put into operation early and reach the proction capacity early

for such an open-pit mine with small surface specific height, small first mining area and two small stopes in one open-pit, automobile mining can adapt to it, so the highway development scheme is selected. The total annual mining and stripping capacity of the mine is 7.5 million tons, the mining and loading equipment is 4m < sup > 3 < / sup > electric shovel, and 40 t truck is designed for transportation

there are four mining levels above the surface, and multi branch straight road development is adopted. The main trunk line is developed from the upper part of the northeast end of the stope to the levels of 1010m, 1020m, 1030m and 1040m respectively, and then the single wall cutting is excavated along the slope line for mining

below the surface, there are 4 levels in the East orebody and 19 levels in the West orebody. The development road enters the stope from the closed entrance to the 960m middle orebody platform, and then moves to the East and West small stopes in a spiral way to the bottom of the stope

The ore and rock above 970m level in the Western orebody are transported out of the North 1010m elevation exit of the stope

(2) mining method

adopts horizontal bench mining method. The eastern and middle orebodies are trenched in the rocks of the ore rock contact zone on the hanging wall of the orebody, and advance to the upper and lower walls, or the oblique orebodies advance laterally. In order to rece the stripping ratio, the West orebody is mined laterally along the orebody strike from east to west. Each mining level is operated synchronously, advancing to the final limit in turn, with 5-6 working levels at the same time

mine equipment level φ 250mm roller drill drilling, 4-4.6m < sup > 3 < / sup > electric shovel loading, 40t truck transportation

The working stage height of open pit is 10m and the slope angle is 70 °， The minimum width of working flat plate is 40-50m, and the working line length of each shovel is not less than 200m. The bottom width of inclined ditch and section ditch is 25m, and the width of transportation Cliff Road is 16.5m

in the open pit, the covered soil is piled up separately for use. The maximum fragmentation of ore and rock in the stope is 1000mm and 1200mm respectively. The ore and rock larger than the above fragmentation need to be broken again. The mining loss rate is 5%, the waste rock mixing rate is 5%, and the average ore grade is 51%. The main and auxiliary mining equipment designed are shown in table 8.14

Table 8.14 main and auxiliary equipment of stope. When the section height is less than 3m, shallow hole blasting is adopted, and when the section height is more than 3m, medium deep hole blasting is adopted. Medium and deep hole drilling φ The efficiency of 250 mm cone drill is 2.5 million T-3 million T / A, and 3 sets of drills are needed. See table 8.15 for drilling workload

Table 8.15 drilling workload unit: 10000 m < sup > 3 < / sup >

2) blasting work. Porous granular ANFO explosive is used in dry hole and emulsion fried explosive is used in water hole with the ratio of 6:4. Detonating with detonating cord, detonating tube and millisecond detonator, 2-4 rows of holes are blasted each time, and the blasting quantity of ore and rock is 50000-100000 t each time. Detonating cord is used for bus bar and detonating tube is used for branch line. Two 0.5kg detonators are placed in each hole for initiation. Hole network parameters 6M × 6m or 6M × 7m The blasting hole is filled with 2m < sup > 3 < / sup > front loader to fill rock powder

the porous granular explosive is mixed on the charging vehicle and charged at the same time; Emulsifying and frying medical artificial charge. The consumption of explosives and blasting materials is: porous granular ANFO explosive, 0.25kg/t; 25 kg / T; Detonators, 33 / 10000 t; Fuse, 250m / 10000 t; Detonating cord, 99m / 10000 t; Nonel tube, 231m / 10000 t; Detonator (0.5kg / piece), two per hole

3) shallow hole blasting and secondary crushing. Shallow hole blasting and secondary crushing are carried out by means of shallow hole rock drilling and blasting. Hand held rock drill, No.2 rock explosive and ordinary detonator are used for blasting, and mobile air compressor is used for air supply. The equipment model and quantity are 12 y-24 hand-held rock drills (6 of which are standby); Four yw-9 / 7 mobile air compressors (one for standby)

The calculated annual consumption of blasting materials is shown in table 8.16

table 8.blasting material consumption in 2016. Emulsified fried explosive and other blasting materials are purchased. In the mine, only the storage storehouse is built, that is, the general storehouse and the branch storehouse of gunpowder. The storehouse consists of the following parts: ① the general storehouse of gunpowder: including the emulsion frying storehouse, the porous granular ammonium nitrate storehouse, and the 2 rock explosive storehouse

6. The st at the exit of crusher equipment is very serious, and the block and powder materials from crusher directly affect the ore conveyor belt. Some substances splash or roll on the ground, and a thick layer of materials is accumulated on the ground. Part of powder materials are in the air, which brings a lot of inconvenience to proction. In this process, the material enters the plate feeder and the plate feeder enters tkpc20. And a hammer crusher, the crusher directly exports ore to the belt machine. Due to the crusher proction capacity is very large, 600 tons per hour, export logistics is also very large, resulting in st and splash
our analysis shows that the root cause of the above phenomenon is the mping caused by the lack of buffer in octagonal flow. Therefore, the following improvements can be made: a temporary garbage can is established between the crusher outlet and the ore belt, and the st collector is temporarily received. Between the temporary Ben, the belt and a valve. Then a material flow control valve is set in the valve. Setting temporary storage is to buffer the influence of large flowing materials; The material flow control valve can stabilize the export logistics; The st collector in the temporary warehouse can make part of the fine powder be treated in the early stage of the temporary storage, rece the outlet st, and also help to improve the service life of the belt. In this improvement, completely solved the st flying and material splashing point to the workshop proction and management, brought great convenience. In the process of crusher work, there may be some other problems, crusher common problems summary and troubleshooting, but also need to pay attention to time, provide crushing equipment efficiency.

7. This profession is recognized by the state. It has nothing to do with crime.

8. Live platform reward to make money itself does not belong to fraud, but can involve fraud
just like the kitchen knife itself is not a murder weapon, but it can become a murder weapon in the hands of criminals.

9. 1. Strictly control the feeding size to avoid jamming and blockage.

there is a formula for the design size of feeding port of jaw crusher: feeding port size = (1.1 ~ 1.25) * maximum particle size of raw material

many proction personnel do not understand it, and always take the measured feed port size as the maximum feed size. Therefore, the raw materials with large particle size exceeding the requirements become the culprit of blocking the cavity slot. Although it is not blocked repeatedly, the equipment will not operate normally for a long time every time. Therefore, strict control of raw material particle size is one of the most important preconditions to ensure the normal operation of jaw crusher

2. Strictly control the feeding amount to prevent the blockage caused by excessive feeding

many enterprises transform the silo blindly in order to improve the proction capacity, which often leads to excessive feeding

because the working principle of jaw crusher is half rhythm, if excessive materials are put in, the materials will not be broken in time, and the broken materials can not be eliminated in time, resulting in material jam. Therefore, the capacity of jaw crusher will be affected by material breaking and excessive feeding

3. Rhythm feeding, control feeding, ensure the normal operation of jaw crusher

at present, the crushing section of mineral processing enterprises is mostly fed by end chute, 2 / 3 of the whole feeder is even exposed outside the bin. Due to the remote feeding port, the feeder is completely changed into a vibrating chute, which not only has poor feeding speed, but also has serious wear. The best feeding position of the feeder should be in the range of 1 / 3 of the top of the equipment, but vertical feeding is strictly prohibited to prevent the equipment from losing its vibration ability or affecting the conveying effect
4. Adjust the angle of the feeder, make full use of the screening function of the feeder to achieve pre screening

vibrating feeder often has grate bar, which has some screening functions. However, in practical application, e to the amplitude, feeding angle and other reasons, it is easy to block the grate bar in the screening process, which makes it lose its original efficiency. In the face of this situation, many enterprises block the grate bar with steel plate and turn it into a plate feeder

in fact, the grate bar of vibrating feeder can play an extremely obvious role when it is properly adjusted. It is the best way to improve the overall flow rate by adjusting the amplitude and the angle of the feeder and fully releasing the screening function of the feeder< The processing capacity of jaw crusher is determined by adjusting the discharge port and bite angle of jaw crusher to increase the processing capacity of the equipment to the maximum. The jaw crusher is often used as coarse crushing equipment, the size of its discharge port should be based on the optimal feed size of two-stage crushing, and the size of discharge port should not be arbitrarily increased or reced

the bite angle (the angle between the movable jaw plate and the fixed jaw plate) needs to be adjusted strictly, generally in the range of 17 ~ 26 degrees (subject to the actual situation).