Dust-free conveying and screening device

Abstract

The utility model discloses a dust-free conveying and screening device, and particularly relates to the technical field of dust-free conveying and screening, the dust-free conveying and screening device comprises a support frame, a screening mechanism for screening limestone is arranged at the top of the support frame, the screening mechanism comprises a screening box arranged at the top of the support frame, and a screening net is arranged in the screening box. The bottom end of the screening box fixedly communicates with a discharging pipe, a collecting box is arranged on one side of the screening box, one side of the screening net penetrates through the screening box and extends into the collecting box, the top of the screening box fixedly communicates with a feeding groove, and a dust falling mechanism for cleaning dust generated in the limestone conveying process is arranged at the top of the supporting frame. Dust can be cleaned through the dust falling mechanism, the surrounding environment is prevented from being polluted by the dust, the filter screen can be pulled out from the interior of the purification box through the connecting plate, the dust on the filter screen is cleaned, and the dust falling efficiency is prevented from being influenced by the fact that the filter screen is blocked by the dust.

Description

Technical Field

[0001] The utility model relates to the technical field of dust-free conveying and screening, in particular to a dust-free conveying and screening device. Background Art

[0002] Limestone generally refers to limestone. Limestone is an important industrial raw material in metallurgy, building materials, chemical industry, light industry, agriculture and other sectors. Limestone is referred to as limestone. It is a carbonate rock with calcite as the main component. Sometimes it contains dolomite, clay minerals and debris minerals. When mining limestone in the open air, conveyor belts are needed to screen and transport the limestone.

[0003] However, the existing technical solution still has the following problems: when limestone is loaded, dust will be raised around, which can pollute the working environment on site and is not conducive to environmental protection. Utility Model Content

[0004] The purpose of the utility model is to provide a dust-free conveying and screening device, which can clean dust through a dust reduction mechanism to prevent dust from polluting the surrounding environment. The filter can also be pulled out from the inside of the purification box through a connecting plate to clean the dust on the filter to prevent dust from clogging the filter and affecting the dust reduction efficiency, so as to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust-free conveying and screening device, comprising a support frame, a screening mechanism for screening limestone is provided on the top of the support frame, the screening mechanism comprises a screening box arranged on the top of the support frame, a screening net is provided inside the screening box, a discharge pipe is fixedly connected to the bottom end of the screening box, a collecting box is provided on one side of the screening box, one side of the screening net passes through the screening box and extends to the inside of the collecting box, a feed trough is fixedly connected to the top of the screening box, a box door is movably connected to the front side of the collecting box by a hinge, a handle is fixedly provided at the front end of the box door for screening limestone.

[0006] Preferably, a dust reduction mechanism for cleaning dust generated in the process of conveying limestone is provided on the top of the support frame, the dust reduction mechanism includes a protective cover arranged on the top of the support frame, a purification box is provided on the top of the protective cover, an exhaust fan is fixedly provided on the top of the protective cover through a bracket, an air inlet of the exhaust fan is fixedly connected with an air inlet pipe, the bottom end of the air inlet pipe is connected with a connecting pipe, the end of the connecting pipe close to the protective cover passes through the protective cover and extends to the inside of the protective cover, one side of the connecting pipe is fixedly connected with a plurality of dust hoods, the air outlet of the exhaust fan is fixedly connected with a plurality of first air outlet pipes, the end of the first air outlet pipe close to the purification box passes through the purification box and extends to the inside of the purification box, a filter is provided inside the purification box, and a second air outlet pipe is fixedly connected to the top of the filter for cleaning dust generated in the process of conveying limestone.

[0007] Preferably, the bottom end of the feed pipe passes through the protective cover and extends to the top of the inner part of the protective cover, and the bottoms of the screening box and the collecting box are fixedly connected to the top of the protective cover for supporting the screening box and the collecting box.

[0008] Preferably, a conveying mechanism for conveying limestone is provided inside the support frame, and the conveying mechanism includes two rotating shafts arranged on both sides of the support frame, both ends of the rotating shafts are movably connected to the support frame through bearings, rollers are provided outside the rotating shafts, and the same conveyor belt is provided outside the two rollers, the rear end of one of the rotating shafts passes through the support frame and extends out of the rear side of the support frame, and a motor is fixed to the rear end of the rotating shaft extending out of the rear side of the support frame, and the motor is fixed to the rear side of the support frame through a bracket for conveying limestone.

[0009] Preferably, the front side of the filter passes through the purification box and extends out of the front side of the purification box. A connecting plate is fixed to the front side of the filter. Bolts are threaded at the four corners of the connecting plate. Each of the bolts is threadedly connected to the front side of the purification box, which facilitates the removal of the filter from the inside of the purification box.

[0010] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0011] 1. Start the exhaust fan, which can suck the dust inside the protective cover into the connecting pipe through the dust cover, and then into the first air outlet pipe through the connecting pipe, and finally into the purification box through the first air outlet pipe. The filter inside the purification box can intercept the dust, and the dust-reduced air is discharged through the second air outlet pipe. The utility model can clean the dust through the dust reduction mechanism to prevent dust from polluting the surrounding environment;

[0012] 2. A lot of dust will accumulate on the filter of this utility model after long-term use. It is necessary to clean the dust on the filter regularly. Turn the bolt, remove the bolt from the connecting plate, and pull the filter out of the purification box through the connecting plate to clean the dust on the filter to prevent dust from clogging the filter and affecting the dust reduction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a rear view of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure inside the protective cover of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the screening mechanism of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the dust suppression mechanism of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the conveying mechanism of the utility model.

[0020] Description of reference numerals:

[0021] 1 support frame;

[0022] 2 screening mechanism, 201 screening box, 202 screening net, 203 feeding pipe, 204 collecting box, 205 feeding trough;

[0023] 3 dust suppression mechanism, 301 protection cover, 302 purification box, 303 exhaust fan, 304 air inlet pipe, 305 connecting pipe, 306 dust cover, 307 first air outlet pipe, 308 filter screen, 309 second air outlet pipe;

[0024] 4 conveying mechanism, 401 rotating shaft, 402 rotating roller, 403 conveying belt, 404 motor;

[0025] 5 connecting plates, 6 bolts. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-6 A dust-free conveying and screening device shown in the figure comprises a support frame 1, a screening mechanism 2 for screening limestone is provided on the top of the support frame 1, the screening mechanism 2 comprises a screening box 201 arranged on the top of the support frame 1, a screening net 202 is provided inside the screening box 201, a feeding pipe 203 is fixedly connected to the bottom end of the screening box 201, a collecting box 204 is provided on one side of the screening box 201, one side of the screening net 202 passes through the screening box 201 and extends to the inside of the collecting box 204, a feeding trough 205 is fixedly connected to the top of the screening box 201, a box door is movably connected to the front side of the collecting box 204 through a hinge, and a handle is fixedly provided at the front end of the box door;

[0028] Pour the limestone into the screening box 201 through the feed trough 205, the screening net 202 inside the screening box 201 will screen out the suitable limestone, the suitable limestone will fall into the discharge pipe 203, and the unsuitable limestone will slide into the collecting box 204 through the screening net 202. The collecting box 204 can collect unsuitable dust, and the limestone inside the collecting box 204 can be cleaned by opening the box door on the front side of the collecting box 204 with the handle.

[0029] like Figure 5 As shown, a dust reduction mechanism 3 for cleaning dust generated during the limestone conveying process is provided on the top of the support frame 1, and the dust reduction mechanism 3 includes a protective cover 301 provided on the top of the support frame 1, a purification box 302 is provided on the top of the protective cover 301, and an exhaust fan 303 is fixedly provided on the top of the protective cover 301 through a bracket, and an air inlet of the exhaust fan 303 is fixedly connected with an air inlet pipe 304, and a connecting pipe 305 is connected at the bottom end of the air inlet pipe 304, and an end of the connecting pipe 305 close to the protective cover 301 passes through the protective cover 301 and extends to the inside of the protective cover 301, and a plurality of dust hoods 306 are fixedly connected to one side of the connecting pipe 305, and a plurality of first air outlet pipes 307 are fixedly connected to the air outlet of the exhaust fan 303;

[0030] like Figure 5 As shown, one end of the first air outlet pipe 307 close to the purification box 302 penetrates the purification box 302 and extends to the inside of the purification box 302, a filter screen 308 is provided inside the purification box 302, and the top of the filter screen 308 is fixedly connected to the second air outlet pipe 309, the bottom end of the feed pipe 203 penetrates the protective cover 301 and extends to the top of the protective cover 301, and the bottoms of the screening box 201 and the collecting box 204 are fixedly connected to the top of the protective cover 301;

[0031] Start the exhaust fan 303, and the exhaust fan 303 can suck the dust inside the protective cover 301 into the connecting pipe 305 through the dust collection cover 306, and then enter the first air outlet pipe 307 through the connecting pipe 305, and finally enter the purification box 302 through the first air outlet pipe 307. The filter 308 inside the purification box 302 can intercept the dust, and the dust-reduced air is discharged through the second air outlet pipe 309. The utility model can clean the dust through the dust reduction mechanism 3 to prevent dust from polluting the surrounding environment.

[0032] like Figure 6As shown, a conveying mechanism 4 for conveying limestone is provided inside the support frame 1, and the conveying mechanism 4 includes two rotating shafts 401 arranged on both sides of the support frame 1, and both ends of the rotating shaft 401 are movably connected to the support frame 1 through bearings, and a roller 402 is provided outside the rotating shaft 401, and the same conveyor belt 403 is provided outside the two rotating rollers 402, and the rear end of one of the rotating shafts 401 passes through the support frame 1 and extends out of the rear side of the support frame 1, and a motor 404 is fixed to the rear end of the rotating shaft 401 extending out of the rear side of the support frame 1, and the motor 404 is fixed to the rear side of the support frame 1 through a bracket;

[0033] Suitable limestone falls on the top of the conveyor belt 403, and the motor 404 is started. The motor 404 can drive the shaft 401 to rotate, and the rotation of the shaft 401 can drive the roller 402 to rotate, and the rotation of the roller 402 can drive the conveyor belt 403 to rotate, and the conveyor belt 403 is used to drive the limestone to move.

[0034] like Figure 1 As shown, the front side of the filter screen 308 penetrates the purification box 302 and extends out of the front side of the purification box 302. A connecting plate 5 is fixedly arranged on the front side of the filter screen 308. Bolts 6 are threadedly connected at the four corners of the connecting plate 5. Each of the bolts 6 is threadedly connected to the front side of the purification box 302.

[0035] When the filter 308 of the utility model is used for a long time, a lot of dust will accumulate on the filter 308, and the dust on the filter 308 needs to be cleaned regularly. By turning the bolt 6, removing the bolt 6 from the connecting plate 5, and pulling the filter 308 out of the purification box 302 through the connecting plate 5, the dust on the filter 308 can be cleaned to prevent the dust from clogging the filter 308 and affecting the dust reduction efficiency.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dust-free conveying and screening device, comprising a support frame (1), characterized in that: A screening mechanism (2) for screening limestone is provided on the top of the support frame (1); The top of the support frame (1) is provided with a dust removal mechanism (3) for cleaning dust generated during the limestone conveying process; The dust reduction mechanism (3) comprises a protective cover (301) arranged on the top of the support frame (1); a purification box (302) is arranged on the top of the protective cover (301); an exhaust fan (303) is fixedly arranged on the top of the protective cover (301) through a bracket; an air inlet of the exhaust fan (303) is fixedly connected to an air inlet pipe (304); a bottom end of the air inlet pipe (304) is connected to a connecting pipe (305); an end of the connecting pipe (305) close to the protective cover (301) penetrates the protective cover (301) and extends to To the inside of the protective cover (301), one side of the connecting pipe (305) is fixedly connected to a plurality of dust collecting covers (306), the air outlet of the exhaust fan (303) is fixedly connected to a plurality of first air outlet pipes (307), one end of the first air outlet pipe (307) close to the purification box (302) passes through the purification box (302) and extends to the inside of the purification box (302), a filter screen (308) is provided inside the purification box (302), and the top of the filter screen (308) is fixedly connected to a second air outlet pipe (309); A conveying mechanism (4) for conveying limestone is provided inside the support frame (1).

2. A dust-free conveying and screening device according to claim 1, characterized in that: The screening mechanism (2) comprises a screening box (201) arranged on the top of the support frame (1), a screening net (202) is arranged inside the screening box (201), a bottom end of the screening box (201) is fixedly connected to a feed pipe (203), one side of the screening box (201) is provided with a collecting box (204), one side of the screening net (202) passes through the screening box (201) and extends to the inside of the collecting box (204), and the top of the screening box (201) is fixedly connected to a feed trough (205).

3. A dust-free conveying and screening device according to claim 2, characterized in that: The bottom end of the feed pipe (203) passes through the protective cover (301) and extends to the top of the inner part of the protective cover (301), and the bottoms of the screening box (201) and the collecting box (204) are fixedly connected to the top of the protective cover (301).

4. The dust-free conveying and screening device according to claim 1, characterized in that: The conveying mechanism (4) comprises two rotating shafts (401) arranged on both sides of the interior of the support frame (1), both ends of the rotating shafts (401) are movably connected to the support frame (1) through bearings, a rotating roller (402) is arranged outside the rotating shaft (401), and a same conveying belt (403) is arranged outside the two rotating rollers (402), the rear end of one of the rotating shafts (401) passes through the support frame (1) and extends out of the rear side of the support frame (1), and a motor (404) is fixedly arranged at the rear end of the rotating shaft (401) extending out of the rear side of the support frame (1), and the motor (404) is fixed to the rear side of the support frame (1) through a bracket.

5. The dust-free conveying and screening device according to claim 1, characterized in that: The front side of the filter (308) passes through the purification box (302) and extends out of the front side of the purification box (302). A connecting plate (5) is fixedly provided on the front side of the filter (308). Bolts (6) are threadedly connected at four corners of the connecting plate (5). Each of the bolts (6) is threadedly connected to the front side of the purification box (302).

6. The dust-free conveying and screening device according to claim 2, characterized in that: The front side of the collection box (204) is movably connected to a box door via a hinge, and a handle is fixedly provided at the front end of the box door.

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