CN110711640A - Grit aggregate self sealss environmental protection production line - Google Patents

Abstract

The self-sealing environment-friendly production line for the sandstone aggregate effectively solves the problems that the existing production line for the sandstone aggregate is large in pollution, not easy to install and high in manufacturing cost; the production line comprises a raw material bin, a feeding machine, a crusher, a vibrating screen and a finished product bin, wherein the feeding machine is connected with a discharge port of the raw material bin, the crusher is connected with a feed port of the feeding machine, a discharge port of the crusher is connected with a feed port of the vibrating screen, the production line also comprises a sealing conveying device, the sealing conveying device is connected with the crusher, the vibrating screen and the finished product bin, and the vibrating screen is provided with a self-sealing structure so that a closed space is formed among the crusher, the vibrating screen and the finished product bin; the invention can process the sandstone aggregate without pollution, and the whole production line is easy to install and produce and has low production and manufacturing cost.

Description

A kind of sand and gravel aggregate self-sealing environmental protection production line

technical field

The invention relates to the technical field of sand and gravel aggregate production, in particular to a self-sealing and environment-friendly production line of sand and gravel aggregate.

Background technique

The sand and gravel aggregate production line is a special production line equipment for producing sand and stone for construction. The sand and gravel production line is a special production line equipment for the production of construction sand and stone. It has uniform degree and high compressive strength, which is far more in line with construction requirements than natural sand and sand produced by ordinary hammer sanders, and can improve construction quality.

During the working process of the sand and gravel aggregate production line, the large stones are evenly fed into the jaw crusher or hammer crusher by the vibrating feeder through the silo for coarse crushing, and the coarsely crushed stones are sent by the belt conveyor. The crusher performs fine crushing, the finely crushed stone is sent to the vibrating screen by the belt conveyor for screening, and the finished sand is sent to the finished product pile by the belt conveyor; The sub-finely crushed stone is sent to the vibrating screen again by the belt conveyor for screening, thus forming a closed circuit for multiple cycles.

However, the crushing equipment, screening equipment and belt conveyor in the existing sand and gravel aggregate production line are all exposed to the air. The dust overflowed and seriously damaged the environment, so a closed production line was created. The production line used equipment such as crushers and screening machines to be placed in the corresponding buildings, and corresponding metal corridors were constructed to connect each building. , and place the belt conveyor in the metal corridor to form a closed crushing environment. Although measures have been taken against dust pollution, it is still far from meeting the required environmental protection requirements, because the crusher will produce There is a lot of dust, and a section of discharge chute is usually set between the crusher and the conveyor belt. Because the conveyor has to continuously transport the crushed materials outward, the amount of dust here is also relatively large, although there are rubber With a seal, the dust collector collects dust, but due to the large number of air leakage places, it is difficult to collect all the dust. Secondly, the vibrating screen produces a lot of dust pollution when screening materials. Because the vibrating screen does not stop vibrating with the surrounding The fixed structure is difficult to seal tightly, and there are many air leakage places. Even if there is a dust collector to collect dust, it is difficult to collect the dust. In order to meet the environmental protection requirements, the traditional sand and gravel aggregate production line not only needs to invest a large amount of materials to seal the conveyor and vibrating screen, but also needs multiple high-power dust collectors, but it still cannot achieve good results, and dust pollution will not only cause It pollutes the air, affects the health of operators, and requires a lot of labor to clean up the dust that falls on the ground, and manufacturing this metal corridor requires a lot of metal, and the manufacturing cost is extremely high.

Therefore, a self-sealing and environmentally friendly production line for sand and gravel aggregates is needed to solve this problem.

SUMMARY OF THE INVENTION

In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a self-sealing and environmentally friendly production line for sand and gravel aggregates, which effectively solves the problem that the existing sand and gravel aggregate production lines have large pollution, difficult installation and high manufacturing costs. The problem.

The technical solution is that the present invention includes a raw material warehouse, a feeder, a crusher, a vibrating screen and a finished product warehouse, the feeder is connected with the discharge port of the raw material warehouse, and the crusher is connected with the feed port of the feeder. , the discharge port of the crusher is connected with the feed port of the vibrating screen. A self-sealing environmental protection production line for sand and gravel aggregate also includes a sealing conveying device. The sealing conveying device is connected with the crusher, the vibrating screen and the finished product warehouse. The vibrating screen has The self-sealing structure forms a closed space between the crusher, the vibrating screen and the finished product warehouse.

Preferably, the sealing conveying device comprises a first sealing conveyor connecting the discharge port of the crusher and the feeding port of the vibrating screen, a second sealing conveyor connecting the first discharging port of the vibrating screen and the raw material silo, and a second sealing conveyor connecting the vibrating screen The second outlet and the third sealed conveyor of the finished product warehouse.

Preferably, the self-sealing and environmental protection production line for sand and gravel aggregate further includes a fine crusher, and the sealed conveying device includes a first sealed conveyor connected to the discharge port of the crusher and the feed port of the vibrating screen, and a second sealed conveyor connected to the vibrating screen. The second outlet and the third sealing conveyor of the finished product warehouse, the fourth sealing conveyor connecting the first outlet of the vibrating screen and the feeding inlet of the fine crusher, and the fifth sealing conveyor connecting the outlet of the fine crusher and the finished product storage conveyor.

Preferably, the second sealing conveyor and the third sealing conveyor have the same structure as the first sealing conveyor.

Preferably, the second sealing conveyor, the third sealing conveyor, the fourth sealing conveyor and the fifth sealing conveyor have the same structure as the first sealing conveyor.

Preferably, the connection between the vibrating screen with a self-sealing structure and the sealing conveying device is a movable sealing connection.

Preferably, the movable sealing connection is a soft connection.

Preferably, a discharge hopper is provided at the lower end of the crusher, and the discharge hopper is connected with the sealing conveying device.

Preferably, the self-sealing and environmental protection production line for sand and gravel aggregate further includes a dust collector, which is connected to the first sealing conveyor.

Preferably, a sealing flange is provided on the finished material storehouse.

The beneficial effects of the invention are as follows: the invention can process the sand and gravel aggregates without pollution, the whole production line is easy to install and produce, and the production cost is low.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the sealing conveyor of the present invention.

FIG. 3 is a cross-sectional view of the first sealing conveyor 6 of the present invention when the top cover is closed.

FIG. 4 is a cross-sectional view when the top cover of the first sealing conveyor 6 of the present invention is opened.

Fig. 5 is an enlarged view of A in Fig. 2 of the present invention.

FIG. 6 is a schematic view of the structure of the vibrating screen 4 of the present invention.

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 in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of 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.

1 to 6, a kind of sand and gravel aggregate self-sealing environmental protection production line provided in this specific embodiment mainly includes a raw material warehouse 1, a feeder 2, a crusher 3, a vibrating screen 4 and a finished material. Warehouse 5, the feeder 2 is connected with the discharge port of the raw material warehouse 1, the crusher 3 is connected with the feed port of the feeder 2, and the discharge port of the crusher 3 is connected with the feed port of the vibrating screen 4. The self-sealing requirements of the production line, a sand and gravel aggregate self-sealing environmental protection production line also includes a sealing conveying device, and the sealing conveying device is connected with the crusher 3, the vibrating screen 4 and the finished product warehouse 5, that is, the sealing conveyor is respectively connected with the crusher 3. The discharge port, the feed port of the vibrating screen 4, the discharge port of the vibrating screen 4 and the feed port of the finished product warehouse 5 are connected, the vibrating screen 4 has a self-sealing structure, the crusher 3, the vibrating screen 4 and the finished product warehouse A closed space is formed between 5, so that the working space between the sand and gravel aggregates entering the crusher 3 and being crushed until being sent into the finished product warehouse 5 is kept sealed, so that the dust in the secondary working space will not fly out.

For the existing production and preparation process of sand and gravel aggregate, the vibrating screen 4 and the sealing conveying device are independent of each other. As a general concept, the production line, the sealing conveying device and the sealing vibrating screen 4 with a self-sealing structure are combined The comprehensive design of the trinity is carried out, the production process is simplified, and the sealing performance is excellent, which can greatly avoid the dust pollution generated during the production of sand and gravel aggregates. The sealing conveying device is sealed and the corridor is set outside the sealing conveying device. It is economical and practical, and has better market prospects and space.

As shown in FIG. 1 , this specific embodiment provides a self-sealing and environmentally friendly production line for sand and gravel aggregates. The sealed conveying device includes a first sealed conveyor 6 connecting the discharge port of the crusher 3 and the feed port of the vibrating screen 4 2. The second sealing conveyor 7 connecting the first discharge port of the vibrating screen 4 and the raw material warehouse 1 and the third sealing conveyor 8 connecting the second discharge port of the vibrating screen 4 and the finished product warehouse 5, through the feeder 2. The raw materials in the raw material bin 1 are sent to the crusher 3 for crushing, and the crushed materials are sent to the vibrating screen 4 through the first sealed conveyor 6 for screening. The volume of the material exported from the first outlet of the vibrating screen 4 larger than the volume of the material exported from the second outlet, the first sealed conveyor 6 is used to transport the material crushed by the crusher 3 into the vibrating screen 4, and the sand sorted by the vibrating screen 4 enters the second sealed conveyor 7 and the third sealing conveyor 8, the second sealing conveyor 7 is used to re-send the unsatisfactory materials (greater than 5mm) screened by the vibrating screen 4 into the raw material warehouse for secondary crushing, and the third sealing conveyor The conveyor 8 is used to send the required materials (less than 5mm) screened by the vibrating screen 4 into the finished product warehouse 5 for storage.

The raw materials in the raw material bin 1 are sent to the crusher 3 through the feeder 2 for crushing, and the crushed materials are sent to the vibrating screen 4 through the first sealed conveyor 6 for screening.

In another preferred embodiment of the sealing conveying device, the self-sealing and environmental protection production line for sand and gravel aggregate further includes a fine crusher. The device includes a first sealed conveyor 6 connecting the discharge port of the crusher 3 and the feeding port of the vibrating screen 4, a third sealed conveyor 8 connecting the second discharge port of the vibrating screen 4 and the finished product warehouse 5, and connecting the vibrating screen. 4. The fourth sealed conveyor between the first discharge port and the feed port of the fine crusher and the fifth sealed conveyor connecting the discharge port of the fine crusher and the finished product warehouse 5. The raw materials in the raw material warehouse 1 are sent through the feeder 2. The crushed materials are sent to the vibrating screen 4 for screening through the first sealed conveyor 6. The first sealed conveyor 6 is used to transport the crushed materials by the crusher 3 to the vibrating screen. 4, the fourth sealing conveyor is used to send the unsatisfactory materials (greater than 5mm) screened by the vibrating screen 4 into the fine crusher for secondary crushing, the third sealing conveyor 8 and the fifth sealing conveying The machine is used to send the required materials (less than 5mm) screened by the vibrating screen 4 and the materials (less than 5mm) after secondary crushing into the finished product warehouse 5 for storage.

Specifically, the second sealing conveyor 7 and the third sealing conveyor 8 have the same structure as the first sealing conveyor 6 , and the second sealing conveyor 7 and the third sealing conveyor 8 are only the same as the first sealing conveyor 6 The installation direction, installation position and length are different.

In another preferred embodiment about the first sealing conveyor 6 , the second sealing conveyor 7 , the third sealing conveyor 8 , the fourth sealing conveyor and the fifth sealing conveyor are connected with the first sealing conveyor 6 The structure of the second sealing conveyor 7, the third sealing conveyor 8, the fourth sealing conveyor and the fifth sealing conveyor are only different from the installation direction, installation position and length of the first sealing conveyor 6.

It should be noted that the connection mode of the vibrating screen 4 with the self-sealing structure and the sealing conveying device is a movable sealing connection, which can make the vibrating screen 4 still maintain the gap between the vibrating screen 4 and the sealing conveying device under the condition of vibration. Good sealing.

Wherein, the movable sealing connection is a soft connection, that is, the discharge port of the vibrating screen 4 and the feed port of the sealing conveying device are connected by a flexible pipe, and the flexible pipe may be a rubber pipe or a cloth bag.

In addition, the lower end of the crusher 3 is provided with a discharge hopper 9, which is connected with the sealing conveying device, which is easy to convey materials and the crusher 3 is kept sealed by the flange of the discharge hopper 9 installed on the discharge hopper 9.

In addition, the self-sealing and environmental protection production line for sand and gravel aggregate further includes a dust collector 10, which is connected to the first sealed conveyor 6 to maintain negative pressure in the first sealed conveyor 6. The dust collector 10 is connected to the first sealed conveyor 6. The position where the sealing conveyor 6 is connected is located near the connection position between the crusher 3 and the first sealing conveyor 6, which can maximally remove dust from the position where the dust is most seriously raised.

In practical applications, the finished product warehouse 5 is provided with a sealing flange for sealing connection with the sealing conveying device.

In this embodiment, a self-sealing material conveying device is preferably used. As shown in FIG. 2 to FIG. 5 , in order to facilitate installation and maintenance, the first sealed conveyor 6 includes a bottom plate 11 on which a vertical second The side plate 12, the second side plate 13 and the top plate 14, the bottom plate 11, the first side plate 12, the second side plate 13 and the top plate 14 are sealed and connected to form a closed space, and the top plate 14 is provided with a conveying feed port 15 One end of the bottom plate 11 is provided with a conveying outlet 16, the first side plate 12 and the second side plate 13 are installed on the front and rear ends of the bottom plate 11, and an inspection cover 17 is arranged on the top plate 14, and one end of the inspection cover 17 is rotated and installed on the On the top plate 14, the interior of the first sealed conveyor 6 can be inspected by lifting the inspection cover 17, and the first sealed conveyor 6 can be maintained in a sealed state by lowering the inspection cover 17. In order to maintain the airtightness between the inspection cover 17 and the top plate 14 , the top plate 14 or the inspection cover 17 can also be provided with a sealing strip, and the first sealing conveyor 6 is also provided with a conveyor belt 18 for conveying the material entering from the feeding inlet 15 to the feeding outlet 16 .

Usually, in order to enable the conveyor belt 18 to run, a plurality of support devices are provided between the first side plate 12 and the second side plate 13 , and the support devices include brackets mounted on the first side plate 12 and the second side plate 13 . The roller bracket 19, the upper and lower ends of the idler bracket 19 are respectively provided with an upper idler 20 and a lower idler 21, the lower idler 21 is installed on the idler bracket 19 through the first support arm, and the conveyor belt 18 is installed on the upper idler 20 and the lower idler 21.

Specifically, the upper idler 20 includes a first idler 22 placed parallel to the bottom plate 11 , a second idler 23 and a third idler 24 obliquely positioned at both ends of the first idler 22 , the second idler 23 and The third idler 24 is mounted on the idler bracket 19 through the second support arm, the transmission belt is closely attached to the upper ends of the first idler 22, the second idler 23 and the third idler 24, the first idler 22, the third idler An inverted trapezoid is formed between the second idler roller 23 and the third idler roller 24 to prevent the material falling on the conveyor belt 18 from spilling out.

It should be noted that the lower ends of the second idler 23 and the third idler 24 are provided with buckles 25, and the buckles 25 are installed on the idler bracket 19 for connecting the first idler 22 and the second idler 23 and the third idler roller 24, and the positions of the first idler roller 22, the second idler roller 23 and the third idler roller 24 are fixed.

In addition, the conveying outlet 16 and the conveying inlet 15 are respectively the flange of the conveying outlet 16 and the flange of the conveying inlet 15, so that the connection between the sealing conveying device and the screening machine and the flat material warehouse is sealed.

In particular, the inspection cover 17 is rotatably mounted on the first side plate 12 or the second side plate 13, and the interior of the sealed conveyor can be exposed by lifting the inspection cover 17, which is convenient for maintenance. A partition plate 26 is arranged between the covers 17, the partition plate 26 is installed on the first side plate 12 and the second side plate 13, the partition plate 26 plays the role of supporting the access cover 17, Disposing the sealing strips on the sides can not only maintain the sealing, but also reduce the wear between the two adjacent inspection covers 17 and improve the service life.

In addition, the first sealing conveyor 6 also includes a maintenance aisle 28 disposed at the lower end of the bottom plate 11 , the width of the maintenance aisle 28 is greater than the width of the bottom plate 11 , so that the two ends of the maintenance aisle 28 protruding from the bottom plate 11 form a walkway, and the bottom plate 11 , The first side plate 12 and the second side plate 13 are installed on the upper end of the maintenance aisle 28, the two ends of the maintenance aisle 28 are provided with vertical railings 29, and the first side plate 12 or the second side plate 13 is provided with a plurality of maintenance Side door 27.

It should be noted that the first sealing conveyor 6 also includes a scraper conveyor, and the scraper conveyor includes a scraper 30 slidably arranged on the upper side of the bottom plate 11 , and the lower end of the scraper 30 is against the first sealing conveyor 6 The upper end of the bottom plate 11 is used to scrape the material on the bottom plate 11 into the discharge port, and the scraper 30 moves intermittently on the bottom plate.

Specifically, in order to drive the scraper 30 to move intermittently on the bottom plate 11 , the scraper conveyor further includes a first rotating shaft 31 and a second rotating shaft 32 respectively disposed at both ends of the bottom plate 11 . The first rotating shaft 31 and the second rotating shaft 31 The shafts 32 are respectively provided with corresponding motors to drive the first rotating shaft 31 or the second rotating shaft 32 to rotate. The first rotating shaft 31 and the second rotating shaft 32 are respectively installed with a plurality of first rope pulleys and a plurality of second rotating shafts. Two sheaves, the first sheave and the second sheave are provided with a transmission rope, the transmission rope can be a steel wire rope, and the scraper 30 is installed on the transmission rope, that is, when the motor intermittently controls the movement of the transmission rope, the scraper 30 intermittently slides on the bottom plate 11 with the movement of the transmission rope, so as to clean the materials on the bottom plate 11 .

In the actual installation and manufacturing process, since the actual sand and gravel aggregates are processed in the mountainous area, it is very difficult to install the production line in the mountainous area. Therefore, according to the actual inspection and measurement of the processing site, the bottom plate 11 can be prioritized in the processing plant. , the first side plate 12, the second side plate 13, the top plate 14, the conveyor belt 18 and other components are processed to the appropriate size and quantity, and these components are transported to the processing site and directly assembled and installed, and the production line can be quickly and easily installed. The combined installation in the processing site can save a lot of manpower and material costs, and has a good economic prospect.

In this embodiment, a self-sealing screening device is preferably used. As shown in FIG. 6 , the vibrating screen 4 includes a screen box 33, a discharge end 35 and a feed end 34. The screen box 33 is a sealed box body. Some common screen boxes 33 are provided with sealing plates at the upper end and the left and right ends respectively. The screen box 33 is provided with an inclined multi-layer screen 36. The mesh diameter of the multi-layer screen 36 is reduced in turn from top to bottom. The material end 34 is installed on the upper end of the screen box 33, and the discharge end 35 is arranged at the connection between the lower end of the multi-layer screen 36 and the screen box 33, and the material screened by the multi-layer screen 36 is divided and exported.

Preferably, the discharge end 35 is provided with a plurality of discharge layers 37, and the discharge layers 37 are connected with the multi-layer screen 36, that is, a blanking cavity is formed between every two layers of the screen 36, and the blanking of each layer is The cavity is connected to the discharge layer 37 .

In practical applications, the discharge end 35 and the feed end 34 are respectively provided with a discharge end 35 flange and a feed end 34 flange for sealing connection with the sealing conveying device.

In addition, in order to provide exciting force to the vibrating screen 4, the vibrating screen 4 further includes a vibration exciter 38, and the vibration exciter 38 is installed on the sealed box.

In addition, the vibrating screen 4 also includes a support base 39 , the height of which is adjustable, and the screen box 33 is movably installed on the support base 39 .

Of course, those skilled in the art can understand that the above-mentioned sealing conveying device and the vibrating screen 4 with a self-sealing structure can be used together or alone, and are not limited to this production line.

Specifically, the upper end of the support base 39 is provided with a plurality of support shafts 40 , the upper end of the support shaft 40 is provided with a plurality of springs 41 , and the sealing box is provided with a plurality of spring seats 42 connected with the springs 41 .

In particular, the left end of the vibrating screen 4 is provided with an observation door, and the observation door is a flip-up structure. The observation door is opened by flipping to observe the situation inside the vibrating screen 4, which is convenient for maintenance and observation. After observation, it is flipped and closed for observation. door to keep the vibrating screen 4 sealed.

Compared with the existing vibrating screen 4, the vibrating screen 4 with a self-sealing structure provided by the present invention has excellent sealing performance. Applicable but not limited to scientific research, production and laboratories in the departments of geology, metallurgy, powder, chemical industry, construction, cement, medicine, national defense, etc.

The above specific embodiments/embodiments are specific embodiments of the present invention, are used to illustrate the concept of the present invention, are illustrative and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the description of the present application, and these technical solutions include any obvious technical solutions to the embodiments described herein. The technical solutions of replacement and modification are all within the protection scope of the present invention. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any manner. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (10)

1. The utility model provides a grit aggregate self sealss environmental protection production line, including former feed bin (1), batcher (2), breaker (3), shale shaker (4) and finished product material storehouse (5), batcher (2) are connected with the bin outlet of former feed bin (1), breaker (3) are connected with the feed inlet of batcher (2), the discharge gate of breaker (3) is connected with the feed inlet of shale shaker (4), a serial communication port, a grit aggregate self sealss environmental protection production line still includes sealed conveyor, sealed conveyor and breaker (3), shale shaker (4) and finished product material storehouse (5) are connected, shale shaker (4) have self sealss structure, make breaker (3), form inclosed space between shale shaker (4) and the finished product material storehouse (5).

2. The sandstone aggregate self-sealing environment-friendly production line as claimed in claim 1, wherein the sealing and conveying device comprises a first sealing conveyor (6) connected between the discharge port of the crusher (3) and the feed port of the vibrating screen (4), a second sealing conveyor (7) connected between the first discharge port of the vibrating screen (4) and the raw material bin (1), and a third sealing conveyor (8) connected between the second discharge port of the vibrating screen (4) and the finished product bin (5).

3. The sandstone aggregate self-sealing environment-friendly production line as claimed in claim 1, which further comprises a fine crusher, wherein the sealing and conveying device comprises a first sealing conveyor (6) connected with a discharge port of the crusher (3) and a feed port of the vibrating screen (4), a third sealing conveyor (8) connected with a second discharge port of the vibrating screen (4) and a finished product warehouse (5), a fourth sealing conveyor connected with a first discharge port of the vibrating screen (4) and a feed port of the fine crusher, and a fifth sealing conveyor connected with a discharge port of the fine crusher and a finished product warehouse (5).

4. An environment-friendly production line for self-sealing gravel aggregates as claimed in claim 2, characterized in that the second sealing conveyor (7) and the third sealing conveyor (8) are identical in structure to the first sealing conveyor (6).

5. An environment-friendly production line for self-sealing gravel aggregates as claimed in claim 3, wherein the second sealing conveyor (7), the third sealing conveyor (8), the fourth sealing conveyor and the fifth sealing conveyor are identical in structure with the first sealing conveyor (6).

6. The sandstone aggregate self-sealing environment-friendly production line as claimed in claim 1, wherein the connection mode of the vibrating screen (4) with the self-sealing structure and the sealing and conveying device is movable sealing connection.

7. The sandstone aggregate self-sealing environment-friendly production line of claim 6, wherein the movable sealing connection is a flexible connection.

8. An environment-friendly production line for self-sealing gravel aggregates as claimed in claim 1, characterized in that the lower end of the crusher (3) is provided with a discharge hopper (9), and the discharge hopper (9) is connected with a sealing conveying device.

9. The environment-friendly production line for self-sealing of sandstone aggregates as claimed in claim 1, further comprising a dust collector (10), wherein the dust collector (10) is connected with the first sealing conveyor (6).

10. Sealing conveyor for sealing production lines according to claim 1, characterized in that sealing flanges are provided on the finished product magazine (5).

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