Vibrating feeder for ore bin

3. 1、 The principle of mine construction area selection
on the basis of making full use of the existing proction and living facilities and natural conditions of the mine, a safe, environmental protection and resource utilization mine should be built with less investment. We should make full and reasonable use of the mine's geological reserves, adopt suitable mining methods, and recover as many geological resources as possible. In order to improve the economic benefits of the mine, we should make full use of the existing facilities and equipment of the mine and increase the investment as little as possible. Select and use the mature technology in our country, and the mining and processing equipment with high degree of mechanization and energy saving which are suitable for the mining and processing conditions of the deposit have been adopted and mastered by the mine. On the premise of meeting the normal proction of the mine, auxiliary facilities should be simplified or entrusted to social forces to rece investment< Second, the main scheme design of the mine construction
the development system adopts the footwall shaft development scheme, = 5500mm. The shaft is used to lift up and down the ore, waste rock, personnel and materials. The single-layer double cage is used to lift. The wellhead elevation is + 59M and the bottom elevation is - 315m. In the footwall of the ore vein, there are seven stage transportation roadways (0 m, - 50 m, - 100 m, - 150 m, - 200 m, - 250 m and - 300 m), which are arranged outside the moving zone of the ore body, because they are used as the return air roadways in the previous stage, and are lifted in multiple middle sections
the thickness of the ore body is generally 5-30m, with an average of 16.8m, and the dip angle is about 60 °， It belongs to steeply inclined medium thick ore body. The ore body is mainly composed of copper bearing pyrite. The proctor's coefficient f is 6-8. It belongs to relatively solid ore body, but it mostly contains fracture structure and fracture zone, so the stability of ore body is not very good. The hanging wall rock is unstable, and the footwall rock is relatively stable. The ore body contains sulfur, and has certain caking and oxidizing properties. Therefore, the filling mining method can only be used, but if it is well controlled, the sublevel caving method is also technically feasible. According to the design task, it is a small and medium-sized mine. Combined with the geological data, it adopts the drift mining method of reinforced concrete false roof sublevel caving method. The stage height is 50m, the length of ore block is 50m, and the width is the width of ore body. The ore blocks are arranged along the strike, and each ore block is provided with a pedestrian lifting raise and a pass mine. After the ore caving, it is transported by an electric scraper and poured into the pass through the connecting road, After that, the ore passes through the ore pass to the ore bin, and the vibrating drawing machine is used for ore drawing.

4.

According to the provisions of the mineral resources law of the people's Republic of China, Article 39, in violation of the provisions of this law, mining without a mining license, entering the state planned mining area, mining within a mining area of great value to the national economy, and mining specific minerals prescribed by the state for protective mining, Order to stop mining and compensate for losses, confiscate the mined mineral procts and illegal income, and may concurrently impose a fine; Those who refuse to stop mining and cause damage to mineral resources shall be investigated for criminal responsibility in accordance with the provisions of Article 156 of the criminal law

Units and indivials who enter the mining areas of state-owned mining enterprises and other mining enterprises established by others according to law shall be punished in accordance with the provisions of the preceding paragraph

Article 40 If mining beyond the approved mining area, it shall be ordered to return to the mining area for mining and compensate for the losses, and the mineral procts and illegal income from cross-border mining shall be confiscated and a fine may be imposed; Those who refuse to return to the mining area for mining and cause damage to mineral resources shall have their mining license revoked and the persons directly responsible shall be investigated for criminal responsibility in accordance with the provisions of Article 156 of the criminal law

Article 41 Anyone who steals or seizes mineral procts or other property of mining enterprises or exploration units, damages mining and exploration facilities, or disturbs the order of proction and work in mining areas and exploration areas shall be investigated for criminal responsibility in accordance with the relevant provisions of the criminal law; If the circumstances are obviously minor, the offender shall be punished in accordance with the relevant provisions of the regulations on administrative penalties for public security

Article 42 Where mineral resources are sold, leased or transferred in other forms, the illegal gains shall be confiscated and a fine shall be imposed

If anyone, in violation of the provisions of Article 6 of this law, resells the exploration right or mining right for profit, his exploration license or mining license shall be revoked, his illegal income shall be confiscated and he shall be fined

Article 43 anyone who, in violation of the provisions of this law, purchases or sells mineral procts uniformly purchased by the State shall have his mineral procts and illegal income confiscated and may also be fined; If the circumstances are serious, criminal responsibility shall be investigated in accordance with the provisions of articles 117 and 118 of the criminal law

Article 44 anyone who, in violation of the provisions of this law, adopts destructive mining methods to mine mineral resources shall be fined and his mining license may be revoked; If serious damage is caused to mineral resources, the person directly responsible shall be investigated for criminal responsibility in accordance with the provisions of Article 156 of the criminal law

Article 45 The administrative penalties prescribed in articles 39, 40 and 42 of this Law shall be decided by the Department in charge of the administration of Geology and mineral resources of the people's government at or above the county level within the limits of authority prescribed by the Department in charge of Geology and mineral resources under the State Council. The administrative penalty prescribed in Article 43 shall be decided by the administrative department for Instry and Commerce of the people's government at or above the county level

The administrative penalty stipulated in Article 44 shall be decided by the Department in charge of Geology and mineral resources of the people's Government of the province, autonomous region or municipality directly under the central government. The punishment of revoking the exploration license or mining license shall be decided by the original license issuing organ

If an administrative penalty should be imposed in accordance with the provisions of articles 39, 40, 42 and 44, but no administrative penalty is imposed, the Department in charge of Geology and mineral resources of the people's government at a higher level shall have the right to order correction or directly impose administrative penalty

Article 47 the Department in charge of Geology and mineral resources of the people's government at a higher level shall have the right to cancel the exploration license and mining license illegally issued

Article 48 those who obstruct state functionaries engaged in the supervision and administration of mineral resources exploration and mining from performing their ties according to law by means of violence or threat shall be investigated for criminal responsibility in accordance with the provisions of Article 157 of the criminal law; Those who refuse or hinder state functionaries engaged in the supervision and administration of mineral resources exploration and mining from performing their ties according to law without violence or threat shall be punished by the public security organs in accordance with the provisions of the regulations on administrative penalties for public security

Article 156 Whoever intentionally destroys public or private property, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or fine

Article 157 Whoever obstructs a state functionary from performing his ties according to law by means of violence or threat, or refuses to execute a legally effective judgment or written order of a people's court, shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention, fine or deprivation of political rights

Article 158 forbids anyone to disturb social order by any means. If the circumstances of disrupting social order are serious, so that work, proction, business, teaching and scientific research cannot be carried out, and the state and society suffer serious losses, the ringleaders shall be sentenced to fixed-term imprisonment of not more than five years, criminal detention, public surveillance or deprivation of political rights

5. The trough feeder can be erected on the ground or hoisted on the discharge port of the ore bin. The bottom plate of the groove moves back and forth, and the stroke is 20-200 mm. The stroke can be properly adjusted by the eccentric wheel of the driving device, and the eccentricity is half of the stroke. According to the proction practice of some concentrators, for viscous ore, the eccentricity should not be less than 30mm. The width of trough feeder is about 2-2.5 times of the maximum particle size. The largest trough feeder can meet the feeding of iron ore with particle size less than 500mm. The most commonly selected specification is 980 * 1240 trough feeder, whose feeding particle size is 350-0mm, which is suitable for the feeding equipment of 400 * 600 jaw crusher< br />
http://ke..com/view/913158.html?wtp=tt
go and have a look

6.

bus line: No.42, the whole journey is about 11.7 km

1. Take No.42 from Datong station, pass 16 stops, and reach Fangte happy world station

2. Walk about 100 meters to Datong Fangte happy world

7. Take the middle ring road, turn left at Shunchi bridge, ride along Weiguo Road, and you'll arrive after the sun city. It's very easy to find. But it's going to take a ride. It's estimated to be forty minutes!

8.

The first letter of the most common NGK spark plug model represents the screw diameter of the spark plug. For example, B represents 14mm thread, C represents 10mm thread, D represents 12mm thread, etc

Detailed examples: for example, bkr6e spark plug, BK represents 14mm screw diameter, ISO standard length spark plug, R represents built-in resistance type, 6 represents calorific value, and e represents 19mm thread length

when choosing spark plug, we should first determine whether the spark plug is assembled or not. Here, the thread diameter and thread length are involved. The calorific value and gap related to spark plug performance must also be considered. For the electrode gap of NGK spark plug, if it is not listed on the number, it means that it is the standard gap - 0.8mm

for more specific reading method of NGK spark plug number, please refer to the figure below

< H2 > extended data

high voltage current is introced into the cylinder in the ignition system of gasoline engine to generate electric spark to ignite the components of combustible gas mixture. It is mainly composed of wiring nut, insulator, wiring screw, center electrode, side electrode and shell. The side electrode is welded on the shell

the gap between the spark plug electrodes has a great influence on the operation of the spark plug. If the gap is too small, the spark is weak, and it is easy to cause carbon deposition and leakage

the gap is too large, the required breakdown voltage is increased, the engine is not easy to start, and the phenomenon of "misfire" is easy to occur at high speed, so the spark plug gap should be appropriate, the spark plug gap used in the general battery ignition system is 0.7 ~ 0.8mm, and indivial spark plug gap can reach more than 1mm

function of spark plug

spark plug is a component that ignites the mixture of gasoline and air entering the engine combustion chamber and acts as a lighter. Because it acts as a lighter, it has to work under the very harsh conditions listed below< It can withstand the explosion pressure of 5MPa repeatedly

3. It can withstand the repeated changes of mixture cooling and combustion gas heating (2000-2500 ℃)

4. Its electrode material has great influence on the harmful oxides (lead, sulfur, sulfur, etc.) proced by mixture combustion Phosphorus) has corrosion resistance

< H2 > reference

Network spark plug

9. It's just around the east of the river