CN109046573B - A high-efficiency dust-absorbable multi-stage coal ore crushing device - Google Patents

Abstract

A high-efficiency and dust-absorbing multi-level coal ore crushing device belongs to the technical field of coal ore crushing equipment. The high-efficiency and dust-absorbable multi-level coal ore crushing device includes a box body, a primary crushing chamber, a secondary crushing chamber and a dust removal chamber. There is a coal ore inlet above the box, the coal ore inlet is connected with the primary crushing chamber, and the outlet of the primary crushing chamber is connected with the secondary crushing inlet, so that the initially crushed coal ore enters the secondary crushing chamber , The lower part of the side wall of the secondary crushing chamber is provided with an opening, and the opening is communicated with the discharge port of the box body, and the crushed finished coal ore is discharged. The high-efficiency dust-absorbable multi-stage coal ore pulverizing device has fast pulverization speed and high efficiency, dust can be absorbed in the pulverizing process to prevent pollution, realize multi-stage pulverization of coal ore, and use an air curtain to collect dust, and finally combine the filter screen High efficiency of dust removal, crushing and dust removal.

Description

A high-efficiency dust-absorbable multi-stage coal ore crushing device

technical field

The invention relates to the technical field of coal ore crushing equipment, in particular to an efficient and dust-absorbing multi-level coal ore crushing device.

Background technique

In mine production, the initially mined raw coal has large blocks, which is not conducive to the transportation of ore. Generally, a coal ore crushing device is installed inside the mine, which crushes the large block of raw coal and then transports it. The current coal ore pulverizing device is easy to damage the pulverizing cavity due to the large coal ore blocks during operation, and the pulverization efficiency is not high during pulverization, and some raw coal with large blocks may not meet the pulverization standard.

Therefore, in recent years, factories have higher and higher requirements for coal, and more and more customers no longer need directly mined coal blocks, but need pulverized coal or small-sized coal ore, but when pulverizing raw coal A large amount of dust will be generated, which will not only cause certain pollution to the air environment, but also cause certain harm to the health of operators. The dust removal mechanism in the existing multi-stage crushing device is generally a wet dust removal method that sprays water into the crushing chamber, which is easy to cause blockage of the dust removal mechanism, reduce the crushing rate of coal ore, and generate a large amount of waste water.

SUMMARY OF THE INVENTION

In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a high-efficiency dust-absorbable multi-stage coal ore crushing device, which has a simple structure, adopts dry dust removal, has high crushing and dust removal efficiency, and can absorb dust during the crushing process. Prevent contamination.

In order to realize the above-mentioned purpose of the invention, the technical scheme of the present invention is:

A high-efficiency dust-absorbable multi-stage coal ore crushing device, comprising a box body, a primary crushing chamber, a secondary crushing chamber and a dust removal chamber;

The upper part of the box body is provided with a primary crushing chamber and a dust removal chamber, the primary crushing chamber and the dust removal chamber are separated by a vertical plate, a secondary crushing chamber is set at the lower part of the box body, and the upper part of the box body is close to the primary crushing chamber. One side of the chamber is provided with a coal ore inlet, the coal ore inlet is communicated with the primary crushing chamber, and the outlet of the primary crushing chamber is communicated with the secondary crushing inlet, so that the initially crushed coal ore enters the secondary crushing chamber. The lower part of the side wall of the secondary pulverizing chamber is provided with an opening, and the opening is communicated with the discharge port of the box body, and the pulverized finished coal ore is discharged;

The primary crushing chamber is provided with a primary crushing device for preliminary crushing of coal ore;

The side of the dust chamber close to the outlet of the primary crushing chamber and the inlet of the secondary crushing is provided with a suction fan, which is used to suck the dust into the dust chamber. To discharge the dust in the dust removal chamber;

The secondary crushing chamber is provided with a secondary crushing device for deep crushing of coal ore.

The lower part of the primary crushing chamber is provided with a supporting plate, one end of the supporting plate is connected with the inner wall of the box body on the side close to the primary crushing chamber, and the other end is connected to the upper end of the side wall of the secondary crushing chamber on the side close to the primary crushing chamber. It is flush and connected, the lower part of the dust chamber is provided with a partition plate one, one end of the partition plate one is connected with the inner wall of the box body close to the dust chamber, and the other end is connected with the upper end of the side wall of the secondary crushing chamber close to the dust chamber side, One end of the first partition plate close to the secondary crushing chamber is connected with the side of the vertical plate close to the dust removal chamber through the second partition plate, and the suction fan is arranged on the second partition plate.

The first-stage pulverizing device includes two rotating shafts, one driving device and two driving devices. The outer part of each rotating shaft is coaxially sleeved with a roller wheel 1, and the outer part of each roller wheel 1 is uniformly provided with conical protrusions along the circumferential direction. , the driving device 1 and the driving device 2 are respectively connected with a rotating shaft 1 for driving the rotating shaft 1.

The secondary pulverizing device includes four rotating shafts two and three driving devices. The four rotating shafts are symmetrically arranged in two rows and two columns. The outer part of each rotating shaft two is coaxially sleeved with two rollers, and the outside of each roller two is along the circumference. The semicircular protrusions are evenly arranged in the direction, and the driving device 3 is connected with the four rotating shafts 2 at the same time, and is used for driving the second rotating shafts.

The bottom surface of the secondary crushing chamber is inclined, and the side with the opening of the secondary crushing chamber is lower than the side opposite to it, so as to facilitate the discharge of the crushed finished coal ore.

The upper end of the vertical plate is connected with the inner wall of the top plate of the box body, and the lower end is connected with the mounting seat, and a baffle plate is movably installed on the mounting seat to prevent the coal ore after preliminary crushing in the primary crushing chamber from blocking the suction fan.

The first filter screen is provided on both sides of the suction fan, and the second filter screen is provided at the ventilation opening.

The box body further includes a blanking plate, and the blanking plate is connected to the outer wall of the box below the discharge opening.

The lower part of the secondary pulverizing chamber is connected with the inner wall of the bottom of the box body through a support column.

The high-efficiency and dust-absorbable multi-stage coal mine pulverizing device further includes a supporting device, and there are four supporting devices, which are respectively arranged at the four corners below the box body for supporting the box body.

The beneficial effects of the present invention are:

The present invention has excellent use effect, high crushing speed and high efficiency, the size of the obtained finished coal ore completely meets the requirements, dust can be absorbed during the crushing process, and pollution is prevented; The dust is collected, and finally combined with the filter screen for dust removal; the invention has a simple structure and simplifies the dust removal process. Since the crushing and dust removal process is dry dust removal, it is not necessary to spray water into the dust removal mechanism, and only need to periodically clean or replace the filter screen. It is not easy to be blocked during operation, and the crushing and dust removal efficiency is high.

Description of drawings

Fig. 1 is the structural representation of the high-efficiency dust-absorbable multi-stage coal mine pulverizing device provided by the present invention;

Fig. 2 is the right side view of the high-efficiency dust-absorbable multi-stage coal mine pulverizing device provided by the present invention;

FIG. 3 is a schematic structural diagram of a secondary pulverizing chamber provided by the present invention.

in,

1-Box, 2-Support device, 3-Coal ore inlet, 4-Rotation shaft 1, 5-Roller 1, 6-Conical protrusion, 7-Drive motor 1, 8-Motor cover 1, 9-Drive motor 2, 10- motor cover 2, 11- support plate, 12- reinforced fixing plate, 13- vertical plate, 14- mounting seat, 15- baffle, 16- vent, 17- partition 2, 18- suction fan , 19- secondary crushing chamber, 20- drive motor three, 21- motor cover three, 22- shaft two, 23- roller two, 24- support column, 25- discharge port, 26- blanking plate, 27- through hole.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In order to solve the problems existing in the prior art, as shown in FIG. 1 to FIG. 3 , the present invention provides a high-efficiency dust-absorbing multi-stage coal ore pulverizing device, comprising a box body 1 , a primary crushing chamber, and a secondary crushing chamber 19 The upper part of the box body 1 is provided with a primary crushing chamber and a dust removal chamber, the primary crushing chamber and the dust removal chamber are separated by a vertical plate 13, the upper end of the vertical plate 13 is connected with the inner wall of the top plate of the box body 1, and the lower end is connected with the mounting seat 14 Connected, a baffle plate 15 is movably installed on the mounting seat 14 to prevent the coal ore preliminarily crushed by the primary crushing chamber from clogging the suction fan 18 . In the present invention, as shown in FIG. 1 , the primary crushing chamber is enclosed by the inner wall of the box body 1 , the vertical plate 13 and the support plate 11 . One side, so that the coal ore preliminarily crushed by the primary crushing device can smoothly enter the secondary crushing chamber 19, a reinforcing fixing plate 12 is arranged under the supporting plate 11, and the reinforcing fixing plate 12 is fixedly installed on the adjacent box through the supporting rod. 1. On the inner wall, two rotating shafts-4 of the primary crushing device are arranged along the diagonals of the primary crushing chamber, so that the coal ore coming in from the coal mine can pass between the two rotating shafts-4 for better crushing. When the baffle plate 15 in the present invention hangs down naturally, the lower end of the baffle plate 15 is located above the inlet of the secondary pulverizing chamber 19. When the coal ore crushed by the first pulverizing chamber enters the secondary pulverizing chamber 19, it will contact the baffle plate 15 and block the Due to its own weight, the plate 15 can automatically adjust the position to control the feeding speed of the primary crushing chamber, and control the feeding speed by the pressure of its own weight, which can prevent the secondary crushing device in the secondary crushing chamber 19 from being stuck.

A secondary crushing chamber 19 is provided in the lower part of the box body 1. As shown in Figure 1, the secondary crushing chamber 19 is surrounded by the inner wall of the box body 1, the vertical plate 13, the first partition plate and the second partition plate 17, as shown in Figure 3 , the bottom surface of the secondary crushing chamber 19 is inclined, and the side with the opening of the secondary crushing chamber 19 is lower than the opposite side, which is convenient for the discharge of the crushed finished coal ore. The bottom of the secondary crushing chamber 19 passes through the support column. 24 is connected with the inner wall of the bottom of the box body 1, which is used to reduce the weight of the device, improve the opening position, and facilitate the cutting.

A coal ore inlet 3 is provided above the box body 1 on the side close to the primary crushing chamber. The coal ore inlet 3 is communicated with the primary crushing chamber, and the outlet of the primary crushing chamber is communicated with the secondary crushing inlet, so that the primary crushed coal The stone enters the secondary crushing chamber 19, and the lower part of the side wall of the secondary crushing chamber 19 is provided with an opening, and the opening is communicated with the discharge port 25 of the box 1, and the crushed coal ore is discharged.

The primary crushing chamber is provided with a primary crushing device, which is used for the preliminary crushing of coal ore. The primary crushing device includes two rotating shafts 1 4, a driving device 1 and a driving device 2, and each rotating shaft 14 is provided with rollers coaxially outside. One 5, the outer part of each roller one 5 is evenly provided with conical protrusions 6 along the circumferential direction. In the present invention, as shown in FIG. 2, the driving device 1 includes a driving motor 1 7 and a motor cover 1 8, wherein the motor cover 1 8 is arranged on the outer wall of the box body 1, and the driving motor 1 7 is connected with a rotating shaft 1 4, The second driving device includes a second driving motor 9 and a second motor cover 10 , wherein the second motor cover 10 is arranged on the outer wall of the box body 1 , and the second driving motor 9 is connected with another rotating shaft 1 4 .

A suction fan 18 is provided on the side of the dust chamber close to the outlet of the primary crushing chamber and the inlet of the secondary crushing, which is used to suck the dust into the dust chamber. For discharging the dust in the dust removal chamber, the first filter screen is provided on both sides of the suction fan 18, and the second filter screen is provided at the ventilation port 16. The present invention is provided with a suction fan 18, which realizes the use of the air curtain for dust collection, and combines the first and second filters for dust removal, the structure is simple, and the dust removal process is simplified. When spraying water in the mechanism, it is only necessary to regularly clean the first filter, clean or replace the second filter, the dust removal device is not easy to be blocked, and the crushing and dust removal efficiency is high.

The secondary crushing chamber 19 is provided with a secondary crushing device, which is used for deep crushing of coal ore. The secondary crushing device includes four rotating shafts 22 and three driving devices. Two rollers 23 are coaxially sleeved on the outside of the second rotating shafts 22 , and semi-circular protrusions are evenly arranged on the outside of each roller two 23 along the circumferential direction. The driving device 3 is simultaneously connected to the four rotating shafts 22 for driving the rotating shafts 222. In the present invention, the side of the secondary crushing chamber 19 opposite to the side where the opening is provided is provided with four through holes 27 , and the driving device 3 includes a driving motor 3 20 and a motor cover 3 21 , wherein the motor cover 3 21 is provided in the box. On the outer wall of the body 1, the four rotating shafts 22 are connected to the driving motor three 20 through the through holes 27, and the four rotating shafts 22 of the secondary crushing device are symmetrically arranged in two rows and two columns in the secondary crushing chamber 19. The distance between the two rotating shafts 22 can be adjusted, and the gap between the two adjacent mixing wheels is adjusted to the maximum length of the finished coal ore, so as to better pulverize the coal ore and improve the speed and efficiency of pulverization.

The lower part of the primary crushing chamber is provided with a supporting plate 11, one end of the supporting plate 11 is connected with the inner wall of the box 1 on the side close to the primary crushing chamber, and the other end is connected with the side wall of the secondary crushing chamber 19 on the side close to the primary crushing chamber The upper end is level and connected, the lower part of the dust chamber is provided with a partition 1, one end of the partition 1 is connected to the inner wall of the box 1 close to the dust chamber, and the other end is connected to the upper end of the side wall of the secondary crushing chamber 19 near the dust chamber. For connection, one end of the first partition plate close to the secondary pulverizing chamber 19 is connected with the side of the vertical plate 13 close to the dust removal chamber through the second partition plate 17 , and the suction fan 18 is arranged on the second partition plate 17 .

As shown in FIG. 2 , the box body 1 further includes a blanking plate, and the blanking plate 26 is connected to the outer wall of the box body 1 below the discharge port 25 , so that the lift is larger during blanking.

The high-efficiency and dust-absorbable multi-stage coal mine pulverizing device further includes support devices 2 , and four support devices 2 are provided, which are respectively arranged at four corners below the box body 1 for supporting the box body 1 .

The working principle of the present invention is:

The coal ore enters the primary crushing chamber through the coal ore inlet 3, and the primary crushing device preliminarily crushes the coal ore. The preliminarily crushed coal ore enters the secondary crushing chamber 19 after the feeding speed is controlled by the movable baffle 15. The fan 18 sucks the dust out, and the dry dust removal method is adopted. There is no need to spray dust removal water mist into the device, and there is no problem of clogging of the dust removal equipment. The distance between the second rollers 23 in the chamber 19 is controlled, and after secondary crushing, a relatively uniform coal ore of the required size can be obtained, and the finished coal ore is discharged from the discharge port 25 .

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (9)

1. A high-efficiency dust-absorbable multi-stage coal mine stone crushing device is characterized by comprising a box body, a primary crushing chamber, a secondary crushing chamber and a dust removing chamber;

the upper part in the box body is provided with a primary crushing chamber and a dust removal chamber, the primary crushing chamber and the dust removal chamber are separated by a vertical plate, the upper end of the vertical plate is connected with the inner wall of a top plate of the box body, the lower end of the vertical plate is connected with a mounting seat, and a baffle is movably mounted on the mounting seat and used for preventing coal mine stones preliminarily crushed by the primary crushing chamber from blocking a suction fan; the lower part in the box body is provided with a secondary crushing chamber, one side of the upper part of the box body, which is close to the primary crushing chamber, is provided with a coal mine stone inlet, the coal mine stone inlet is communicated with the primary crushing chamber, an outlet of the primary crushing chamber is communicated with a secondary crushing inlet, so that primarily crushed coal mine stones enter the secondary crushing chamber, when the baffle naturally droops, the lower end of the baffle is positioned above an inlet of the secondary crushing chamber, the coal mine stones crushed by the primary crushing chamber contact the baffle when entering the secondary crushing chamber, the baffle controls the blanking speed of the primary crushing chamber through automatic position adjustment due to the self-weight effect, the blanking speed is controlled through the self-weight pressure, and the secondary crushing device in the secondary crushing chamber is prevented from being; an opening is formed in the lower portion of the side wall of the secondary crushing chamber, the opening is communicated with a discharge hole of the box body, and crushed finished coal mine stones are discharged;

a primary crushing device is arranged in the primary crushing chamber and is used for primary crushing of coal ores;

one side of the dust chamber, which is close to the outlet of the primary crushing chamber and the inlet of the secondary crushing chamber, is provided with an air suction fan for sucking dust into the dust chamber, and one side of the dust chamber, which is positioned on the side wall of the box body, is provided with a vent for discharging the dust in the dust chamber;

and a secondary crushing device is arranged in the secondary crushing chamber and is used for deeply crushing coal ores.

2. The efficient dust-absorbing multistage coal mine stone crushing device as claimed in claim 1, wherein a supporting plate is arranged at the lower part of the primary crushing chamber, one end of the supporting plate is connected with the inner wall of the box body close to one side of the primary crushing chamber, the other end of the supporting plate is flush and connected with the upper end of the side wall of the secondary crushing chamber close to one side of the primary crushing chamber, a first partition plate is arranged at the lower part of the dust removal chamber, one end of the first partition plate is connected with the inner wall of the box body close to the dust removal chamber, the other end of the first partition plate is connected with the upper end of the side wall of the secondary crushing chamber close to one side of the dust removal chamber, one end of the first partition plate close to the secondary crushing.

3. The efficient dust-absorbing multistage coal mine stone crushing device as recited in claim 1, wherein the primary crushing device comprises two first rotating shafts, a first driving device and a second driving device, a first roller is coaxially sleeved outside each first rotating shaft, conical protrusions are uniformly arranged on the outer portion of each first roller along the circumferential direction, and the first driving device and the second driving device are respectively connected with the first rotating shafts and used for driving the first rotating shafts.

4. The efficient dust-absorbing multistage coal mine stone crushing device as claimed in claim 1, wherein the secondary crushing device comprises four second rotating shafts and a third driving device, the four second rotating shafts are symmetrically arranged in two rows and two columns, a second roller is coaxially sleeved outside each second rotating shaft, semicircular bulges are uniformly arranged outside each second roller along the circumferential direction, and the third driving device is simultaneously connected with the four second rotating shafts and used for driving the second rotating shafts.

5. The efficient dust-collecting multistage coal mine stone crushing device as recited in claim 1, wherein the bottom surface of the secondary crushing chamber is inclined, and the side of the secondary crushing chamber provided with the opening is lower than the side opposite to the opening, so that crushed finished coal ore can be discharged conveniently.

6. The efficient dust collecting multistage coal mine stone crushing device as recited in claim 1, wherein a first filter screen is arranged on two sides of the suction fan, and a second filter screen is arranged at the air vent.

7. The efficient dust collecting multistage coal mine stone crushing device as recited in claim 1, wherein the box body further comprises a blanking plate, and the blanking plate is connected with the outer wall of the box body below the discharge port.

8. The efficient dust-suction multistage coal mine stone crushing device as claimed in claim 1, wherein the lower part of the secondary crushing chamber is connected with the inner wall of the bottom of the box body through a support column.

9. The efficient dust collecting multistage coal mine stone crushing device as recited in claim 1, further comprising four supporting devices, which are respectively arranged at four corners of the lower part of the box body and used for supporting the box body.

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