Dust treatment device for calcium carbide production

Abstract

The utility model relates to the technical field of calcium carbide powder recovery, in particular to a calcium carbide production dust treatment device which comprises a dust removal box communicated with one side of a calcium carbide furnace through a smoke inlet pipeline, the dust removal box is installed on one side of the calcium carbide furnace through a supporting frame, and a fan is arranged on one side of the calcium carbide furnace. An annular ventilation pipe is arranged on the top wall in the dust removal box, a plurality of exhaust inlets are formed in the bottom of the annular ventilation pipe, the end, away from the fan, of the air inlet pipe penetrates through the top of the dust removal box and communicates with the annular ventilation pipe, a filter screen is detachably arranged in the dust removal box, an anti-blocking assembly is arranged above the filter screen, and the bottom of the dust removal box communicates with a material collecting barrel. A dust storage tank is detachably arranged at the bottom of the material collecting barrel, by arranging a filter screen and a draught fan, the draught fan can work to accelerate outflow of flue gas in the dust removal box, and the filter screen filters dust flowing in the flue gas to prevent the dust from escaping into the external environment along with the flue gas.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbide powder recovery, in particular to a calcium carbide production dust treatment device. Background Art

[0002] The chemical name of calcium carbide is calcium carbide, and its molecular formula is CaC2. It is the basic raw material of the organic synthetic chemical industry. It is called calcium carbide because it can conduct electricity. The higher the purity, the easier it is to conduct electricity. Calcium carbide decomposes violently when it comes into contact with water to produce acetylene gas and calcium hydroxide, and releases a large amount of heat. It reacts with nitrogen to form calcium cyanamide. Calcium carbide is an important raw material for acetylene chemical industry. Acetylene produced from calcium carbide is widely used in metal welding and cutting.

[0003] However, a large amount of dust is easily generated during the production process of calcium carbide. If this dust is directly discharged into the air, it will not only cause serious pollution to the environment, but in serious cases, the dust in the flue gas may enter the body through people's respiratory system. Over time, it will cause certain damage to the body and make people in this environment feel uncomfortable. Utility Model Content

[0004] The utility model aims to provide a dust treatment device for calcium carbide production to solve the problem that dust pollution will be generated in the production process of calcium carbide furnace, but the calcium carbide furnace in the prior art is not capable of removing dust from the generated flue gas.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A dust treatment device for calcium carbide production comprises a dust removal box connected to one side of the calcium carbide furnace through a smoke inlet duct, and is characterized in that: the dust removal box is installed on one side of the calcium carbide furnace through a support frame, a fan is provided on one side of the calcium carbide furnace, an air inlet of the fan is connected to an air inlet duct, an end of the air inlet duct away from the fan passes through the top of the dust removal box and is placed inside the dust removal box, a filter screen is detachably provided inside the dust removal box, an anti-blocking component is provided above the filter screen, a collecting barrel is connected to the bottom of the dust removal box, and a ash storage tank is detachably provided at the bottom of the collecting barrel.

[0007] A further technical solution is that an annular ventilation duct is provided on the top wall of the dust removal box, a plurality of air suction ports are provided at the bottom of the annular ventilation duct, and an air inlet duct passes through one end of the top of the dust removal box and is connected to the annular ventilation duct.

[0008] A further technical solution is that a first slot is provided on one side of the dust collector box and passes through the interior of the dust collector box, and a second slot is provided on the inner wall of the dust collector box opposite to the first slot. When the filter is installed inside the dust collector box, one end of the filter passes through the first slot and is plugged into and connected to the inner wall of the second slot. The filter extends away from one end of the second slot to the outside of the dust collector box and is connected to a fixing plate for fixing the filter.

[0009] A further technical solution is that a pull rod is provided on the outer wall of one side of the fixed plate, a through hole is opened on the fixed plate, a fixing screw is movably provided in the through hole, and a threaded groove is opened on the outer wall of the dust removal box. When the filter is installed inside the dust removal box, the fixing screw passes through one end of the through hole and is connected to the thread of the threaded groove.

[0010] A further technical solution is that the anti-blocking component includes two magnets installed on the top inner wall of the dust collector box, two spacer blocks symmetrically installed on the inner wall of the dust collector box and a cross bar with sliding holes at both ends. The two spacer blocks and the top inner wall of the dust collector box are vertically connected to guide rods, and support springs are sleeved on the outer sides of the two guide rods. The bottom ends of the two support springs are respectively fixedly connected to the tops of the two spacer blocks, and the two ends of the cross bar are sleeved on the outer sides of the two guide rods through sliding holes. The top ends of the two support springs are fixedly connected to the bottom of the cross bar, the top end of the cross bar is fixedly connected to two iron sheets that are adsorbed corresponding to the two magnets, and the bottom of the cross bar is fixedly connected to a knocking rod.

[0011] A further technical solution is that an observation port communicating with the inside of the dust removal box is provided on the outside of the dust removal box, and high-strength transparent glass is installed in the observation port.

[0012] A further technical solution is that a raised locking block is provided on the bottom outer wall of the aggregate barrel, and an L-shaped buckle groove matching the locking block is opened on the top inner wall of the ash storage tank. When the ash storage tank is installed at the lower part of the aggregate barrel, the locking block is embedded in the buckle groove.

[0013] A further technical solution is to provide a gate valve inside the collecting barrel.

[0014] Compared with the prior art, the utility model has the following beneficial effects: 1. By setting the filter and the fan, the outflow of the smoke inside the dust removal box can be accelerated by the fan, and the filter will filter the dust flowing in the smoke to prevent the dust from escaping into the external environment with the smoke. 2. By setting the anti-blocking component, the knocking rod knocks the filter, so that the dust adhering to the filter falls off, preventing the filter from being blocked and affecting the smoke in the dust removal box from passing through the filter smoothly, thereby affecting the dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of a calcium carbide production dust treatment device of the utility model.

[0016] Figure 2 This is a three-dimensional diagram of a dust removal box of a calcium carbide production dust treatment device according to the utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of an ash storage tank and a collecting barrel of a calcium carbide production dust treatment device according to the utility model.

[0018] Figure 4 For this utility model Figure 1Enlarged view of point A in the middle.

[0019] Figure 5 For this utility model Figure 1 Enlarged view of point B in the middle.

[0020] Icons: 1-dust removal box, 2-support frame, 3-fan, 4-air inlet pipe, 5-annular ventilation pipe, 6-air suction port, 7-filter, 8-collecting barrel, 9-ash storage tank, 10-first slot, 11-second slot, 12-fixing plate, 13-pull rod, 14-through hole, 15-fixing screw, 16-thread groove, 17-magnet, 18-spacer, 19-cross bar, 20-guide rod, 21-support spring, 22-iron sheet, 23-knocking rod, 24-observation port, 25-locking block, 26-buckle groove, 27-gate valve, 28-calcium carbide furnace, 29-smoke inlet pipe, 30-sliding hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] Example:

[0023] refer to Figure 1 and Figure 2 The figure shows a device for treating dust produced by calcium carbide, comprising a dust collecting box 1 connected to one side of a calcium carbide furnace 28 through a smoke inlet duct 29, the dust collecting box 1 being installed on one side of the calcium carbide furnace 28 through a support frame 2, a fan 3 being provided on one side of the calcium carbide furnace 28, an air inlet of the fan 3 being connected to an air inlet duct 4, an end of the air inlet duct 4 away from the fan 3 passing through the top of the dust collecting box 1 and being arranged inside the dust collecting box 1, a filter screen 7 being detachably provided inside the dust collecting box 1, an anti-blocking component being provided above the filter screen 7, a collecting barrel 8 being connected to the bottom of the collecting barrel 8, a ash storage tank 9 being detachably provided at the bottom of the dust collecting box 1, and during operation of the utility model, the fan 3 is controlled to During operation, the dust and smoke generated in the calcium carbide furnace 28 enters the dust removal box 1 through the smoke inlet pipe 29. Under the extraction force of the fan 3, the smoke drives the dust to flow to the air inlet pipe 4. When passing through the filter 7, the filter 7 filters the dust mixed in the smoke. After passing through the filter 7, the smoke is discharged through the ventilation pipe and the air outlet of the fan 3 respectively. By setting an anti-blocking component, the dust adhering to the lower surface of the filter 7 can be knocked off to prevent the dust from clogging the filter 7 and affecting the smoke from being sucked out. The dust filtered by the filter 7 falls into the ash storage tank 9 through the collecting barrel 8 due to gravity, which is convenient for subsequent centralized treatment.

[0024] refer to Figure 1As shown, an annular ventilation duct 5 is provided on the top wall inside the dust removal box 1, and a plurality of air suction ports 6 are provided at the bottom of the annular ventilation duct 5. The air inlet duct 4 passes through one end of the top of the dust removal box 1 and is connected with the annular ventilation duct 5. During use of the utility model, by arranging the annular ventilation duct 5 on the top wall inside the dust removal box 4 and providing air suction ports 6 on the annular ventilation duct 5, when the fan 3 extracts the air inside the dust removal box 1 through the air inlet duct 4, the air suction ports 6 provided on the annular ventilation duct 5 can extract the gas inside the dust removal box 1 more evenly, avoiding using only the end of the air inlet duct 4 for extraction, affecting the suction efficiency of the fan 3 and affecting the dust removal efficiency.

[0025] refer to Figure 1 , Figure 2 and Figure 4 As shown, a first slot 10 that runs through the interior of the dust removal box 1 is provided on one side of the dust removal box 1, and a second slot 11 is provided on the inner wall of the dust removal box 1 opposite to the first slot 10. When the filter screen 7 is installed in the dust removal box 1, one end of the filter screen 7 passes through the first slot 10 and is plugged and connected with the inner wall of the second slot 11. The end of the filter screen 7 away from the second slot 11 extends to the outside of the dust removal box 1 and is connected to a fixing plate 12 for fixing the filter screen 7. A pull rod 13 is provided on the outer wall of one side of the fixing plate 12, and a through hole 14 is provided on the fixing plate 12. A fixing screw 15 is movably provided in the through hole 14. A threaded groove 16 is provided on the outer wall of the dust removal box 1. When the filter screen 7 is installed in the dust removal box 1, the fixing screw 15 passes through one end of the through hole 14 and is connected with the thread groove 16 by thread matching. In the utility model, by setting the first slot 10 and the second slot 11, the filter 7 can be quickly installed inside the dust removal box 1. When the filter 7 is installed inside the dust removal box 1, the fixing screw 15 passes through the through hole 14 and is thread matchingly connected with the thread groove 16, so as to fix the filter 7 to prevent the filter 7 from loosening and affecting the dust removal efficiency when the dust removal box 1 is working. When the filter 7 is seriously clogged and needs to be replaced, the fixing screw 15 is loosened and removed, and the fixing plate 12 is pulled to pull out the filter 7, so that the filter 7 can be replaced, thereby reducing the workload of replacing the filter 7.

[0026] refer to Figure 1 and Figure 5As shown, the anti-blocking component includes two magnets 17 installed on the top inner wall of the dust removal box 1, two spacers 18 symmetrically installed on the inner wall of the dust removal box 1, and a cross bar 19 with sliding holes 30 at both ends. The two spacers 18 and the top inner wall of the dust removal box 1 are vertically connected with guide rods 20, and the outer sides of the two guide rods 20 are sleeved with support springs 21. The bottom ends of the two support springs 21 are fixedly connected to the tops of the two spacers 18 respectively. The two ends of the cross bar 19 are sleeved on the outer sides of the two guide rods 20 through sliding holes 30. The top ends of the two support springs 21 are fixedly connected to the bottom of the cross bar 19. The top of the cross bar 19 is fixedly connected with two iron sheets 22 corresponding to the two magnets 17, and the bottom of the cross bar 19 is fixedly connected with a knocking rod 23. In actual use of the utility model, the sum of the supporting force of the support spring 21 plus the adsorption force of the iron sheet 22 and the magnet 17 is slightly smaller than the sum of the gravity of the cross bar 19 and the knocking rod 23. Under the extraction force of the fan 3, the air flow inside the dust removal box 1 plays a thrust. Under the support force of the support spring 21 and the adsorption force of the iron sheet 22 and the magnet 17, the iron sheet 22 on the cross bar 19 and the magnet 17 are adsorbed to each other with the thrust. However, as more and more dust is adsorbed on the lower surface of the filter 7, less and less air passes through the filter 7 inside the dust removal box 1, making the thrust of the flowing air smaller and smaller. When the thrust generated by the air flow drops to a specified level, the sum of the supporting force of the support spring 21, the adsorption force of the iron sheet 22 and the magnet 17, and the thrust of the air flow is less than the sum of the gravity of the cross bar 19 and the knocking rod 23. Under the action of the gravity of the cross bar 19 and the knocking rod 23, the iron sheet 22 breaks free from the adsorption of the magnet 17. At this time, under the gravity of the cross bar 19 and the knocking rod 23, the cross bar 19 and the knocking rod 23 are The rod 23 moves downward to knock the top of the filter bag. Since the spring has a maximum elastic pressure, the cross bar 19 and the knocking rod 23 move back and forth up and down, so that the knocking rod 23 knocks the filter 7 back and forth to cause vibration, thereby shaking the dust adsorbed on the lower surface of the filter 7 to the bottom of the discharge, and then driving the air flow under the extraction force of the fan 3 to restore the air thrust. Under the thrust generated by the air flow, the iron sheet 22 and the magnet 17 are attracted to each other, and then the dust on the lower surface of the filter 7 can be automatically cleaned to maintain efficient filtration of the device.

[0027] refer to Figure 2 It is shown that an observation port 24 connected to the inside of the dust removal box 1 is provided on the outside of the dust removal box 1, and high-strength transparent glass is installed in the observation port 24. In the utility model, by providing the observation port 24 and installing transparent glass at the observation port 24, the situation inside the dust removal box 1 can be observed more directly, and dust can also be prevented from escaping from the observation port 24. By observing the situation inside the dust removal box 1 through the observation port 24, it can be more intuitive to judge whether the filter 7 should be replaced and the ash storage tank 9 should be cleaned.

[0028] refer to Figure 3 As shown, a raised locking block 25 is provided on the bottom outer wall of the aggregate barrel 8, and an L-shaped buckle groove 26 matching the locking block 25 is opened on the top inner wall of the ash storage tank 9. When the ash storage tank 9 is installed at the lower part of the aggregate barrel 8, the locking block 25 is embedded in the buckle groove 26, and a gate valve 27 is provided inside the aggregate barrel. In the utility model, by setting the locking block 25 and the buckle groove 26, when in use, it is only necessary to rotate the ash storage tank 9 relative to the aggregate barrel 8 to easily realize the buckling and disassembly of the ash storage tank 9, which is easy to operate, simple and practical. By setting the gate valve 27, it can be more convenient to close the gate valve 27 when the ash storage tank 9 is removed to clean the dust inside the ash storage tank 9, and at the same time, the normal use of the device can be guaranteed.

[0029] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A dust treatment device for calcium carbide production, comprising a dust removal box (1) connected to one side of a calcium carbide furnace (28) through a smoke inlet duct (29), characterized in that: The dust removal box (1) is installed on one side of the calcium carbide furnace (28) through a support frame (2). A fan (3) is provided on one side of the calcium carbide furnace (28). An air inlet of the fan (3) is connected to an air inlet pipe (4). An end of the air inlet pipe (4) away from the fan (3) passes through the top of the dust removal box (1) and is placed inside the dust removal box (1). A filter screen (7) is detachably provided inside the dust removal box (1). An anti-blocking component is provided above the filter screen (7). The bottom of the dust removal box (1) is connected to a collecting barrel (8). A ash storage tank (9) is detachably provided at the bottom of the collecting barrel (8).

2. The device for treating dust in calcium carbide production according to claim 1, characterized in that: An annular ventilation duct (5) is provided on the inner top wall of the dust removal box (1), a plurality of air suction ports (6) are provided at the bottom of the annular ventilation duct (5), and the air inlet duct (4) passes through one end of the top of the dust removal box (1) and is in communication with the annular ventilation duct (5).

3. The device for treating dust in calcium carbide production according to claim 1, characterized in that: A first slot (10) penetrating the interior of the dust removal box (1) is provided on one side of the dust removal box (1); a second slot (11) is provided on the inner wall of the dust removal box (1) on the side opposite to the first slot (10); when the filter (7) is installed inside the dust removal box (1), one end of the filter (7) passes through the first slot (10) and is plug-fittedly connected to the inner wall of the second slot (11); one end of the filter (7) away from the second slot (11) extends to the outside of the dust removal box (1) and is connected to a fixing plate (12) for fixing the filter (7).

4. A calcium carbide production dust treatment device according to claim 3, characterized in that: A pull rod (13) is provided on the outer wall of one side of the fixing plate (12), a through hole (14) is provided on the fixing plate (12), a fixing screw (15) is movably provided in the through hole (14), a threaded groove (16) is provided on the outer wall of the dust removal box (1), and when the filter screen (7) is installed inside the dust removal box (1), one end of the fixing screw (15) passes through the through hole (14) and is threadably connected to the threaded groove (16).

5. The device for treating dust in calcium carbide production according to claim 1, characterized in that: The anti-blocking component comprises two magnets (17) mounted on the inner wall of the top of the dust removal box (1), two spacers (18) symmetrically mounted on the inner wall of the dust removal box (1), and a cross bar (19) with sliding holes (30) at both ends. The two spacers (18) and the inner wall of the top of the dust removal box (1) are vertically connected with a guide rod (20), the outer sides of the two guide rods (20) are sleeved with support springs (21), the bottom ends of the two support springs (21) are respectively fixedly connected to the tops of the two spacers (18), the two ends of the cross bar (19) are sleeved on the outer sides of the two guide rods (20) through the sliding holes (30), the top ends of the two support springs (21) are fixedly connected to the bottom of the cross bar (19), the top end of the cross bar (19) is fixedly connected with two iron sheets (22) adsorbed correspondingly to the two magnets (17), and the bottom of the cross bar (19) is provided with a knocking rod (23).

6. The device for treating dust in calcium carbide production according to claim 1, characterized in that: An observation port (24) communicating with the interior of the dust removal box (1) is provided on the outside of the dust removal box (1), and high-strength transparent glass is installed in the observation port (24).

7. The device for treating dust in calcium carbide production according to claim 1, characterized in that: A protruding locking block (25) is provided on the bottom outer wall of the collecting barrel (8), and an L-shaped buckle groove (26) matching the locking block (25) is provided on the top inner wall of the ash storage tank (9). When the ash storage tank (9) is installed at the lower part of the collecting barrel (8), the locking block (25) is embedded in the buckle groove (26).

8. The device for treating dust in calcium carbide production according to claim 1, characterized in that: A gate valve (27) is provided inside the collecting barrel (8).

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