Dust collecting device

Abstract

The utility model discloses a dust collecting device, which relates to the field of calcium carbide blanking dust collection and comprises a connecting pipe, one end of the connecting pipe is sleeved on a discharge flange of a middle stock bin, and the other end of the connecting pipe is arranged above a feed port of a hopper; the supporting framework is fixedly arranged on the connecting pipe; the lifting device is arranged between the connecting pipe and the supporting framework and can drive the supporting framework to lock the feeding port of the hopper; the dustproof cover is arranged between the bottom of the connecting pipe and the supporting framework and can form a dust suction space when the supporting framework locks the feeding port of the hopper; the vacuum pipe penetrates through the dust cover and is communicated with the dust collection system; the dust collecting device can effectively solve the problems of large flying dust and large waste during discharging of the middle stock bin, and has the advantages of being small in size, low in noise, low in energy consumption, convenient to clean, good in sealing performance and the like.

Description

Technical Field

[0001] The utility model relates to the field of dust collection during calcium carbide feeding, in particular to a dust collection device. Background Art

[0002] The acetylene generator uses calcium carbide particles to react with water to generate acetylene. The calcium carbide particles are made from irregular calcium carbide blocks with a diameter of about 1m purchased, which are crushed by a coarse crusher and a fine crusher to obtain fine calcium carbide particles with a particle size of -80mm. Due to uneven force during crushing, some calcium carbide will be pressed into powder, so that when the calcium carbide stored in the intermediate silo is discharged, there will be a lot of dust, which not only affects the indoor environment, but also is not conducive to the health of employees and affects employee operations, bringing risks to workshop safety; it will also cause waste of calcium carbide. Utility Model Content

[0003] The purpose of the utility model is to provide a dust collecting device, which can effectively solve the problem of large dust and waste when unloading materials from the intermediate silo, and at the same time has the advantages of small size, low noise, low energy consumption, easy cleaning, good sealing, etc.

[0004] The above-mentioned optimized structure of the utility model is realized by the following technical scheme: a dust collecting device is arranged between the intermediate silo and the hopper, comprising a connecting pipe, one end of which is sleeved on the discharge flange of the intermediate silo, and the other end is arranged above the feed port of the hopper;

[0005] A supporting frame, fixed on the connecting pipe;

[0006] A lifting device is provided between the connecting pipe and the supporting frame, and can drive the supporting frame to lock the feeding port of the hopper;

[0007] A dust cover is provided between the bottom of the connecting pipe and the supporting frame, and can form a dust extraction space when the supporting frame locks the hopper feed port;

[0008] The vacuum tube passes through the dust cover and is connected with the dust collection system.

[0009] In some embodiments, the support frame includes a fixing ring, which is sleeved on the connecting tube;

[0010] At least four support rods are distributed in a ring shape on the fixing ring, and the tops are hinged to the fixing ring. The lifting device is provided on a plurality of the support rods.

[0011] In some embodiments, the lifting device includes a sliding ring, which is sleeved on the connecting pipe and can move vertically on the connecting pipe;

[0012] At least four sliding sleeves are sleeved on the support rod, and the dust cover is provided on a plurality of the sliding sleeves;

[0013] A connecting arc block is used for connecting the tops of two adjacent sliding sleeves, and a plurality of the connecting arc blocks can be arranged to form a circular ring coaxial with the connecting pipe;

[0014] A locking device, provided on the connecting pipe, capable of limiting the sliding position of the sliding ring;

[0015] At least four lifting rods are distributed in a ring shape between the sliding ring and the connecting arc block, one end of which is hinged to the sliding ring and the other end of which is hinged to the connecting arc block.

[0016] In some embodiments, the dust cover includes a movable portion, one end of which is arranged around the blanking opening of the connecting pipe, and the other end is fixedly connected to the sliding sleeve;

[0017] The fixing part is fixedly connected to the inner side wall of the sliding sleeve.

[0018] In some embodiments, the vacuum tube passes through the movable part.

[0019] In some embodiments, a filling device is further included, which is disposed on the lifting device and can fill the gap between the dust cover and the hopper feed port.

[0020] In some embodiments, at least one locking groove is provided on the connecting tube, and the locking device is provided in the locking groove.

[0021] In some embodiments, the locking device includes at least one locking plate, which is arranged in the locking groove, and an elastic component is provided between the locking plate and the inner wall of the locking groove, and the width of the locking plate when compressed is smaller than the inner diameter of the sliding ring, and the maximum width of the locking plate when reset is greater than the inner diameter of the sliding ring.

[0022] In some embodiments, the cross-section of the locking plate is a triangle or a right-angled trapezoid.

[0023] In some embodiments, the filling device includes an inflatable ring, which is disposed around the lifting device and is connected to an air pump.

[0024] In summary, the utility model has the following beneficial effects:

[0025] The utility model realizes the sealing of the dust extraction space between the connecting pipe and the hopper by the dust cover by setting a lifting device and a dust cover, and extracts the dust inside the dust cover through the vacuum tube during the dust collection process, thereby reducing the waste of calcium carbide and avoiding the pressure change in the gas phase space causing the seal to break and causing dust leakage; effectively preventing the secondary dusting or leakage of dust, and improving the dust collection efficiency and safety. The filling device can fill the gap between the dust cover and the hopper to further improve the sealing performance, prevent dust from escaping from the gap, and enhance the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model.

[0027] In the figure: 1. connecting tube; 2. supporting frame; 21. fixing ring; 22. supporting rod; 3. lifting device; 31. sliding ring; 32. sliding sleeve; 33. connecting arc block; 34. locking device; 35. lifting rod; 4. dust cover; 5. vacuum tube; 6. filling device. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] refer to Figure 1 A dust collecting device is arranged between an intermediate silo and a hopper, and comprises a connecting pipe 1, a supporting frame 2, a lifting device 3, a dust cover 4, a vacuum tube 5 and a filling device 6. One end of the connecting pipe 1 is sleeved on the discharge flange of the intermediate silo, and the other end is arranged above the feed port of the hopper; the supporting frame 2 is fixed on the connecting pipe 1, and comprises a fixing ring 21 and at least four supporting rods 22; the fixing ring 21 is sleeved on the connecting pipe 1; a plurality of supporting rods 22 are distributed in a ring shape on the fixing ring 21, and the top is hinged to the fixing ring 21, and a lifting device 3 is arranged on the plurality of supporting rods 22.

[0030] The lifting device 3 is arranged between the connecting pipe 1 and the supporting frame 2, and can drive the supporting frame 2 to lock the hopper feed port; it includes a sliding ring 31, at least four sliding sleeves 32, a locking device 34 and at least four lifting rods 35. The sliding ring 31 is sleeved on the connecting pipe 1 and can move vertically on the connecting pipe 1. A convex ring is provided on the top of the connecting pipe 1 to prevent the sliding ring 31 from slipping out of the connecting pipe 1; the sliding sleeve 32 is sleeved on the supporting rod 22, and a plurality of sliding sleeves 32 are provided with dust covers 4; a connecting arc block 33 is connected between the tops of two adjacent sliding sleeves 32, and a plurality of connecting arc blocks 33 can be arranged to form a circular ring coaxial with the connecting pipe 1; a plurality of lifting rods 35 are distributed in a ring shape between the sliding ring 31 and the connecting arc block 33, one end of which is hinged to the sliding ring 31, and the other end is hinged to the connecting arc block 33.

[0031] The locking device 34 is arranged on the connecting pipe 1, and can limit the sliding position of the sliding ring 31; the locking device 34 includes at least one locking plate, which is arranged in at least one locking groove on the connecting pipe 1, and an elastic component is provided between the locking plate and the inner wall of the locking groove, and the width of the locking plate when compressed is smaller than the inner diameter of the sliding ring 31, and the maximum width of the locking plate when reset is larger than the inner diameter of the sliding ring 31, and the cross-section of the locking plate can be a triangle or a right-angled trapezoid; the sliding ring 31 can pass through the locking plate by compressing the locking plate, and the sliding of the sliding ring 31 can be limited after the locking plate is reset, thereby realizing that the multiple support rods 22 are locked at the feed port of the hopper.

[0032] The dust cover 4 is arranged between the bottom of the connecting pipe 1 and the supporting frame 2, and can form a dust extraction space when the supporting frame 2 locks the hopper feed port; it includes a movable part and a fixed part, one end of the movable part is arranged around the drop port of the connecting pipe 1, and the other end is fixedly connected to the sliding sleeve 32; the fixed part is fixedly connected to the inner wall of the sliding sleeve 32.

[0033] The vacuum tube 5 is arranged to penetrate the movable part and is communicated with the dust collecting system.

[0034] The filling device 6 includes an inflatable ring arranged around the lifting device 3 and connected to the air pump. The filling device 6 can fill the gap between the dust cover 4 and the hopper feed port under the action of the air pump.

[0035] The working principle of the utility model is as follows:

[0036] When the intermediate silo needs to discharge, the hopper is placed under the dust collecting device, and a downward force is applied to the lifting device 3, so that the sliding ring 31 slides downward along the connecting pipe 1, and at the same time drives the sliding sleeve 32, the dust cover 4 and the supporting frame 2 to descend together, until the dust cover 4 is close to the hopper. At this time, the locking plate is compressed and the width is reduced, thereby allowing the sliding ring 31 to continue to slide down. After the dust cover 4 is stable, the locking plate returns to its original state and increases the width, thereby clamping the sliding ring 31 to prevent it from sliding up and achieving locking. Then, the filling device 6 is inflated to expand the inflation ring 61, fill the gap between the dust cover 4 and the hopper feed port, and further improve the sealing. Finally, the vacuum tube 5 is activated to suck the dust generated when the intermediate silo is discharged into the dust collecting system, thereby achieving dust collection.

[0037] When the discharge is stopped, the vacuum tube 5 is closed, the dust collection is stopped, the gas in the filling device 6 is discharged, the inflation ring 61 is contracted, the gap between the dust cover 4 and the hopper feed port is released, the locking plate is compressed, and the width of the locking plate is reduced, thereby allowing the sliding ring 31 to slide up, and an upward force is applied to the lifting device 3 to make the sliding ring 31 slide upward along the connecting pipe 1, while driving the sliding sleeve 32, the dust cover 4 and the supporting frame 2 to rise together until the supporting frame 2 and the dust cover 4 are separated from the hopper, and the locking plate returns to its original state, increasing the width of the locking plate, thereby jamming the sliding ring 31 to prevent it from sliding down, thereby achieving locking.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dust collecting device, arranged between the intermediate silo and the hopper feed port, characterized in that: It comprises a connecting pipe (1), one end of which is sleeved on the discharge flange of the intermediate silo, and the other end of which is arranged above the feed inlet of the hopper; A supporting frame (2) fixedly mounted on the connecting pipe (1); A lifting device (3) is disposed between the connecting pipe (1) and the supporting frame (2), and can drive the supporting frame (2) to lock the hopper feed port; A dust cover (4) is arranged between the bottom of the connecting pipe (1) and the supporting frame (2), and can form a dust extraction space when the supporting frame (2) locks the hopper feed port; The vacuum tube (5) passes through the dust cover (4) and is connected to the dust collection system.

2. A dust collecting device according to claim 1, characterized in that: The supporting frame (2) comprises a fixing ring (21) which is sleeved on the connecting pipe (1); At least four support rods (22) are distributed in a ring shape on the fixing ring (21), and the tops are hinged to the fixing ring (21). The lifting device (3) is provided on a plurality of the support rods (22).

3. A dust collecting device according to claim 2, characterized in that: The lifting device (3) comprises a sliding ring (31) which is sleeved on the connecting pipe (1) and can move vertically on the connecting pipe (1); At least four sliding sleeves (32) are sleeved on the support rod (22), and the dust cover (4) is provided on a plurality of the sliding sleeves (32); A connecting arc block (33) is used to connect the tops of two adjacent sliding sleeves (32), and a plurality of the connecting arc blocks (33) can be arranged to form a circular ring coaxial with the connecting pipe (1); A locking device (34) is provided on the connecting pipe (1) and can limit the sliding position of the sliding ring (31); At least four lifting rods (35) are distributed in a ring shape between the sliding ring (31) and the connecting arc block (33), one end of which is hinged to the sliding ring (31) and the other end of which is hinged to the connecting arc block (33).

4. A dust collecting device according to claim 3, characterized in that: The dust cover (4) comprises a movable part, one end of which is arranged around the blanking opening of the connecting pipe (1), and the other end of which is fixedly connected to the sliding sleeve (32); The fixing portion is fixedly connected to the inner wall of the sliding sleeve (32).

5. A dust collecting device according to claim 4, characterized in that: The vacuum tube (5) passes through the movable part.

6. A dust collecting device according to claim 1, characterized in that: It also includes a filling device (6) which is arranged on the lifting device (3) and can fill the gap between the dust cover (4) and the hopper feed port.

7. A dust collecting device according to claim 3, characterized in that: At least one locking groove is provided on the connecting pipe (1), and the locking device (34) is provided in the locking groove.

8. A dust collecting device according to claim 7, characterized in that: The locking device (34) comprises at least one locking plate, which is arranged in the locking groove, and an elastic component is arranged between the locking plate and the inner wall of the locking groove. The width of the locking plate when compressed is smaller than the inner diameter of the sliding ring (31), and the maximum width of the locking plate when reset is larger than the inner diameter of the sliding ring (31).

9. A dust collecting device according to claim 8, characterized in that: The cross section of the locking plate is a triangle or a right-angled trapezoid.

10. A dust collecting device according to claim 6, characterized in that: The filling device (6) comprises an inflation ring, which is arranged around the lifting device (3) and is connected to an air pump.

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