A wood powder screening and impurity removing device for puffed explosive production workshop

Abstract

The utility model discloses the wood powder screening and impurity removing device belongs to the technical field of the wood powder screening, and particularly relates to a wood powder screening and impurity removing device for the production workshop of the expanded explosive, which comprises a conveying belt, a screening barrel, a driving device, a collecting plate, a wood powder impurity collecting box and a driving part.

Description

Technical Field

[0001] This utility model relates to the field of wood powder sieving technology for expanded explosives, and particularly to a wood powder sieving and impurity removal device for expanded explosives production workshops. Background Technology

[0002] In the production of expanded explosives, wood flour is a key raw material, and its fineness (requiring over 80% to pass through a 380μm sieve) and moisture content directly affect the explosive performance. Traditional wood flour processing methods have the following drawbacks: low efficiency of manual operation: daily wood flour consumption reaches 1200kg, requiring frequent feeding and sieving, resulting in long hours and high labor intensity; serious dust hazards: dust generated during wood flour dumping leads to high dust concentrations in the workshop, threatening the health of workers; crude impurity handling: large pieces of wood chips and sawdust require manual sorting, easily introducing impurities and affecting explosive quality; discontinuous drying process: wood flour sieving and drying processes are disconnected, requiring multiple transfers, increasing energy consumption and time costs. Therefore, there is an urgent need for a wood flour sieving and impurity removal device for expanded explosive production workshops that can efficiently remove impurities and operate unmanned, avoiding dust hazards. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a wood powder sieving and impurity removal device for a puffed explosive production workshop, so as to remove impurities from wood powder and carry out unmanned operation, thereby avoiding dust hazards.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a wood flour sieving and impurity removal device for an expanded explosive production workshop, comprising:

[0005] Base;

[0006] The sieve barrel is rotatably connected to the base. The sieve barrel includes a barrel body and a first fixed seat and a second fixed seat. The first fixed seat and the second fixed seat are respectively connected to the two sides of the sieve barrel. An opening is provided on the outer wall of the barrel body, and baffles are provided around the opening.

[0007] The barrel door is shaped like an arc panel and is movably connected to the opening.

[0008] A drive unit is used to open and close the curved door;

[0009] The feed pipe is located above the screening barrel;

[0010] The first drive motor is connected to the base and is used to drive the sieve barrel to rotate.

[0011] The conveyor belt is located below the screening barrel;

[0012] The wood dust impurity collection box has a collection port at the top, which is connected to an inclined collection plate. The wood dust impurity collection box is movably connected to the base along the conveyor belt's conveying direction.

[0013] The drive unit is used to move the wood flour impurity collection box.

[0014] The driving component switches the wood dust impurity collection box between the first and second states.

[0015] In the first state, the beginning of the collecting plate is located between the conveyor belt and the screening barrel;

[0016] In the second state, the beginning of the collecting plate is far from the area between the conveyor belt and the screening barrel.

[0017] Furthermore, the first fixed seat and the second fixed seat are circular in shape, and the base is provided with a first roller and a second roller. The first roller contacts the outer circumference of the first fixed seat, and the second roller contacts the outer circumference of the second fixed seat.

[0018] Furthermore, the driving device includes a second drive motor and a connecting rod. One end of the connecting rod is rotatably connected to the conveying end of the second drive motor. The radius of the first fixed seat is larger than the radius of the barrel body. The first fixed seat is provided with an arc-shaped track. One end of the barrel door passes through the arc-shaped track, and the barrel door is connected to the other end of the connecting rod.

[0019] Furthermore, the driving component includes a hydraulic cylinder, and the impurity collection box is connected to the piston cylinder of the hydraulic cylinder. The axial direction of the hydraulic cylinder is parallel to the conveying direction of the conveyor belt.

[0020] Furthermore, the bottom of the impurity collection box is equipped with rollers, and the lower part of the impurity collection box is equipped with a strip track that matches the rollers.

[0021] The beneficial effects of this utility model are as follows: Compared with the prior art, by setting up a conveyor belt, a sieve barrel 2, a drive device, a collection plate, a wood powder impurity collection box and a drive component, the sieve barrel can screen wood powder of the required fineness, and the wood powder impurity collection box can collect substandard wood powder impurities, thereby enabling the removal of impurities from wood powder and unmanned operation, avoiding dust hazards. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a wood flour sieving and impurity removal device for an expanded explosive production workshop, according to a specific embodiment of this utility model.

[0023] Figure 2 This is a schematic diagram of the structure of a wood flour sieving and impurity removal device for an expanded explosive production workshop, according to a specific embodiment of this utility model.

[0024] Figure 3 for Figure 2Enlarged view of part A.

[0025] Label Explanation

[0026] 1. Base; 11. First idler roller; 12. Second idler roller;

[0027] 2. Screening barrel; 21. Barrel body; 211. Opening; 2111. Baffle; 22. First fixed seat; 221. Arc-shaped track; 23. Second fixed seat;

[0028] 3. Bucket door;

[0029] 4. Drive unit; 41. Second drive motor; 42. Connecting rod;

[0030] 5. Feed pipe;

[0031] 6. First drive motor;

[0032] 7. Conveyor belt;

[0033] 8. Wood dust impurity collection box; 81. Collection plate; 82. Rollers; 83. Strip track;

[0034] 9. Drive components. Detailed Implementation

[0035] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0036] Please refer to Figures 1 to 3 A wood flour sieving and impurity removal device for an expanded explosive production workshop, comprising:

[0037] Base 1;

[0038] The sieve 2 is rotatably connected to the base 1. The sieve 2 includes a barrel body 21 and a first fixed seat 22 and a second fixed seat 23. The first fixed seat 22 and the second fixed seat 23 are respectively connected to the two sides of the sieve 2. An opening 211 is provided on the outer wall of the barrel body 21, and a baffle 2111 is provided around the opening 211.

[0039] Barrel door 3, the shape of barrel door 3 is an arc plate, barrel door 3 is movably connected to opening 211;

[0040] Drive unit 4, which is used to open and close the arc-shaped door;

[0041] Feed pipe 5 is located above the sieve barrel 2;

[0042] The first drive motor 6 is connected to the base 1 and is used to drive the sieve barrel 2 to rotate.

[0043] Conveyor belt 7 is located below the screening barrel 2;

[0044] Wood dust impurity collection box 8, the upper part of the wood dust impurity collection box 8 is provided with a collection port, the collection port is connected to an inclined collection plate 81, and the wood dust impurity collection box 8 is movably connected to the base 1 along the conveying direction of the conveyor belt 7.

[0045] Drive component 9, which is used to drive the wood powder impurity collection box 8 to move;

[0046] The drive unit 9 drives the wood powder impurity collection box 8 to switch between the first and second states;

[0047] In the first state, the beginning of the collecting plate 81 is located between the conveyor belt 7 and the screening barrel 2;

[0048] In the second state, the beginning of the collecting plate 81 is far away from the area between the conveyor belt 7 and the sieve barrel 2.

[0049] The above embodiments also include a drying tank, with a feed inlet at the top. The end of the conveyor belt 7 is located above the feed inlet. Since the drying tank is an existing structure, it is not shown in the attached drawings. Screening method: The first drive motor 6 drives the sieving barrel 2 to rotate, so that the barrel door 3 is located below the feed pipe 5. Then, the operator in the control room opens the barrel door 3 by controlling the drive device 4, allowing the wood powder to be quantitatively transported into the sieving barrel 2 via the feed pipe 5. When the amount of wood powder transported reaches 100kg, the drive device 4 drives the barrel door 3 to close, and the first drive motor 6 drives the sieving barrel 2 to rotate. The sieving barrel 2 sieves the wood powder. After sieving, the wood powder with the required fineness falls onto the conveyor belt 7, which transports it to the end of the conveyor belt 7, from where it falls into the feed inlet of the drying tank. Then, the remaining wood powder impurities that do not meet the fineness requirements are removed. The drive motor then... The drive unit 9 moves the wood impurity collection box, positioning the beginning of the collection plate 81 between the conveyor belt 7 and the sieve barrel 2. The first drive motor 6 rotates the sieve barrel 2, positioning the barrel door 3 directly above the beginning of the collection plate 81. The drive device 4 opens the barrel door 3, allowing wood dust impurities to fall from the barrel door 3 into the beginning of the collection plate 81 and smoothly into the wood dust impurity collection box. Compared with the prior art, by setting up the conveyor belt 7, sieve barrel 2, drive device 4, collection plate 81, wood dust impurity collection box 8, and drive unit 9, the sieve barrel 2 can screen wood dust of the appropriate fineness, and the wood dust impurity collection box 8 can collect substandard wood dust impurities. This enables the removal of impurities from wood dust and unmanned operation, avoiding dust hazards.

[0050] As an optional implementation, the first fixed seat 22 and the second fixed seat 23 are circular in shape. The base 1 is provided with a first roller 11 and a second roller 12. The first roller 11 is in contact with the outer circumference of the first fixed seat 22, and the second roller 12 is in contact with the outer circumference of the second fixed seat 23.

[0051] In the above embodiments, by setting the first idler roller 11 and the second idler roller 12, not only can the sieve barrel 2 be supported, but the sieve barrel 2 can also rotate more stably.

[0052] As an optional implementation, the drive device 4 includes a second drive motor 41 and a connecting rod 42. One end of the connecting rod 42 is rotatably connected to the conveying end of the second drive motor 41. The radius of the first fixed seat 22 is larger than the radius of the barrel body 21. The first fixed seat 22 is provided with an arc-shaped track 221. One end of the barrel door 3 passes through the arc-shaped track 221, and the barrel door 3 is connected to the other end of the connecting rod 42.

[0053] In the above embodiments, the drive motor rotates, causing the connecting rod 42 to rotate. The connecting rod 42 drives the barrel door 3 to move along the arc track 221, thereby closing and opening the opening 211 of the barrel door 3. When closed, the side of the barrel door 3 near the outer wall of the barrel body 21 seals the opening 211 with the baffle 2111. When opened, the side of the barrel door 3 near the outer wall of the barrel body 21 forms friction with the baffle 2111, causing the wood dust adhering to the side near the outer wall of the barrel body 21 to be scraped off by the baffle 2111 and fall into the collection plate 81, smoothly into the wood dust impurity collection box 8.

[0054] As an optional implementation, the drive unit 9 includes a hydraulic cylinder, with the impurity collection box connected to the piston cylinder of the hydraulic cylinder, and the axial direction of the hydraulic cylinder being parallel to the conveying direction of the conveyor belt 7.

[0055] As an optional implementation, the bottom of the impurity collection box is provided with rollers 82, and the lower part of the impurity collection box is provided with a strip track 83 that matches the rollers 82.

[0056] In the above embodiments, the collecting plate 81 can switch more stably between the first state and the second state.

[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A wood flour sieving and impurity removal device for a puffed explosive production workshop, characterized in that, include: Base; The sieve barrel is rotatably connected to the base. The sieve barrel includes a barrel body and a first fixed seat and a second fixed seat. The first fixed seat and the second fixed seat are respectively connected to the two sides of the sieve barrel. An opening is provided on the outer wall of the barrel body, and baffles are provided around the opening. The barrel door is shaped like an arc panel and is movably connected to the opening. A drive unit is used to open and close the curved door; The feed pipe is located above the screening barrel; The first drive motor is connected to the base and is used to drive the sieve barrel to rotate. The conveyor belt is located below the screening barrel; The wood dust impurity collection box has a collection port at the top, which is connected to an inclined collection plate. The wood dust impurity collection box is movably connected to the base along the conveyor belt's conveying direction. The drive unit is used to move the wood flour impurity collection box. The driving component switches the wood dust impurity collection box between the first and second states. In the first state, the beginning of the collecting plate is located between the conveyor belt and the screening barrel; In the second state, the beginning of the collecting plate is far from the area between the conveyor belt and the screening barrel.

2. The wood flour sieving and impurity removal device for an expanded explosive production workshop according to claim 1, characterized in that, The first fixed seat and the second fixed seat are circular in shape. The base is provided with a first roller and a second roller. The first roller is in contact with the outer circumference of the first fixed seat, and the second roller is in contact with the outer circumference of the second fixed seat.

3. The wood flour sieving and impurity removal device for an expanded explosive production workshop according to claim 2, characterized in that, The driving device includes a second drive motor and a connecting rod. One end of the connecting rod is rotatably connected to the conveying end of the second drive motor. The radius of the first fixed seat is larger than the radius of the barrel body. The first fixed seat is provided with an arc-shaped track. One end of the barrel door passes through the arc-shaped track, and the barrel door is connected to the other end of the connecting rod.

4. The wood flour sieving and impurity removal device for an expanded explosive production workshop according to claim 1, characterized in that, The driving component includes a hydraulic cylinder, and the impurity collection box is connected to the piston cylinder of the hydraulic cylinder. The axis of the hydraulic cylinder is parallel to the conveying direction of the conveyor belt.

5. The wood flour sieving and impurity removal device for an expanded explosive production workshop according to claim 1, characterized in that, The bottom of the impurity collection box is equipped with rollers, and the lower part of the impurity collection box is equipped with a strip track that matches the rollers.

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