Dustproof vibration feeding device
By setting a tapered dustproof gap and dust filter structure between the silo and the vibrating feeder, the problem of dust flying out in industrial silicon production is solved, effective separation and filtration of dust is achieved, and pollution and health risks are reduced.
Patent Information
- Application Number
- CN202422141588.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the industrial silicon production process, a large amount of dust is generated when raw materials are transported from the silo to the vibrating feeder and the weighing silo, causing serious pollution and affecting the health of the operator.
A dust-proof vibration feeding device is designed. By setting a tapered dust-proof gap and dust filter structure between the silo and the vibrating feeder, dust-filling structure is prevented from flying out, and setting a tapered dust-proof gap and dust filter structure between the weighing silo and the vibrating feeder. Combined with a dust detector, effective separation and filtration of dust is achieved.
It effectively reduces the flow of dust from the vibration feeder and weighing chamber, reduces the degree of pollution, and has a less impact on the health of operators.
Smart Images
Figure CN223060215U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of industrial silicon raw material dust prevention, and particularly relates to a dust-proof vibrating feeder device. Background Art
[0002] In the production process of industrial silicon, various raw materials such as silica and coal are transported from a silo to a vibrating feeder by a bin, and then transported from the vibrating feeder to a weighing bin by the vibrating feeder. In this process, when the raw materials are transported from the silo to the vibrating feeder and from the vibrating feeder to the weighing bin, a large amount of dust is generated and flies out from the vibrating feeder and the weighing bin, resulting in relatively large pollution, and the generated dust will also affect the health of the operators. Content of the Utility Model
[0003] The main purpose of the utility model is to propose a dust-proof vibrating feeder device, aiming to solve the technical problem that in the process of transporting raw materials such as silica and coal from a silo to a vibrating feeder by a bin and then from the vibrating feeder to a weighing bin, a large amount of dust is generated and flies out from the vibrating feeder and the weighing bin, resulting in relatively large pollution, and the generated dust will also affect the health of the operators.
[0004] To achieve the above object, the dust-proof vibrating feeder device proposed by the utility model includes:
[0005] A silo, the bottom of the silo is communicated with a first discharge pipe, and one end of the first discharge pipe away from the silo is a first discharge end;
[0006] A weighing bin, the top of the weighing bin is communicated with a first feed pipe, one end of the first feed pipe away from the weighing bin is a first feed end, and a first feed port is provided at the first feed end;
[0007] A vibrating feeder, the top of the vibrating feeder is communicated with a second feed pipe, one end of the second feed pipe away from the vibrating feeder is a second feed end, a second feed port is provided at the second feed end, the first discharge pipe extends into the second feed pipe from the second feed port and is communicated with the second feed pipe, a first dust-proof gap communicated with the second feed port is formed between the first discharge pipe and the second feed pipe, the first dust-proof gap is tapered in the direction from the first discharge end to the second feed port, the bottom of the vibrating feeder is communicated with a second discharge pipe, one end of the second discharge pipe away from the vibrating feeder is a second discharge end, the second discharge pipe extends into the first feed pipe from the first feed port and is communicated with the first feed pipe, a second dust-proof gap is formed between the second discharge pipe and the first feed pipe, and the second dust-proof gap is tapered in the direction from the second discharge end to the first feed port.
[0008] In one embodiment, the first discharge pipe is tapered in the direction from the silo to the first discharge end, and the second feed pipe is a constant-diameter pipe; the second discharge pipe is tapered in the direction from the vibrating feeder to the second discharge end, and the first feed pipe is a constant-diameter pipe.
[0009] In one embodiment, the maximum pipe diameter of the first discharge pipe is smaller than the pipe diameter of the second feed pipe, and the maximum pipe diameter of the second discharge pipe is smaller than that of the first feed pipe.
[0010] In one embodiment, one end of the first feed pipe communicating with the top of the vibrating feeder is the first communication end, and one end of the second feed pipe communicating with the top of the vibrating feeder is the second communication end. The first discharge end pipe extends into the second feed pipe from the second feed port and extends to be flush with the second communication end. The second discharge end extends into the first feed pipe from the first feed port and extends to be flush with the first communication end.
[0011] In one embodiment, a first dust filtering structure is sleeved on the outer sides of the first discharge pipe and the second feed pipe, and the first dust filtering structure seals the first feed port; a second dust filtering structure is sleeved on the outer sides of the second discharge pipe and the first feed pipe, and the second dust filtering structure seals the second feed port.
[0012] In one embodiment, the first dust filtering structure includes a first dust filtering cover, the first dust filtering cover is sleeved and connected to the outer sides of the first discharge pipe and the second feed pipe, and the first dust filtering cover seals the first feed port; the second dust filtering structure includes a second dust filtering cover, the second dust filtering cover is sleeved and connected to the outer sides of the second discharge pipe and the first feed pipe, and the second dust filtering cover seals the second feed port.
[0013] In one embodiment, first mounting ears are arranged on the outer side of the first discharge pipe, second mounting ears are arranged on the outer side of the second feed pipe, and two ends of the first dust filtering cover are detachably connected to the first mounting ears and the second mounting ears respectively; third mounting ears are arranged on the outer side of the second discharge pipe, fourth mounting ears are arranged on the outer side of the first feed pipe, and two ends of the second dust filtering cover are detachably connected to the third mounting ears and the fourth mounting ears respectively.
[0014] In one embodiment, both the first dust filtering cover and the second dust filtering cover are dust-proof cloth covers.
[0015] In one embodiment, the first dust filtering structure includes a plurality of the first dust filtering covers, and the plurality of the first dust filtering covers are sleeved and connected to the outer side of the first discharge pipe and the outer side of the second feed pipe in sequence from outside to inside; the second dust filtering structure includes a plurality of the second dust filtering covers, and the plurality of the second dust filtering covers are sleeved and connected to the outer side of the second discharge pipe and the outer side of the first feed pipe in sequence from outside to inside.
[0016] In one embodiment, dust detectors are provided at a position where the first feed end is close to the first feed port and at a position where the second feed end is close to the second feed port.
[0017] In the technical solution of the present utility model, the first discharge pipe is communicated at the bottom of the silo, the second feed pipe is communicated at the top of the vibrating feeder, the second feed pipe forms a second feed end, and a second feed port is opened at the second feed end. The first discharge pipe extends into the second feed pipe from the second feed port. When the raw material is transported from the silo through the first discharge pipe and the second feed pipe to the vibrating feeder, it can effectively prevent the dust generated after the raw material is transported to the vibrating feeder from flying out of the vibrating feeder. Similarly, the second discharge pipe is communicated at the bottom of the vibrating feeder, the first feed pipe is communicated at the top of the weighing bin, the first feed pipe forms a first feed end, and a first feed port is opened at the first feed end. The second feed pipe extends into the first feed pipe from the first feed port, which can effectively prevent the dust generated after the raw material is transported from the vibrating feeder to the weighing bin from flying out of the weighing bin.
[0018] Further, a first dust-proof gap is formed between the first discharge pipe and the second feed pipe. Through the first dust-proof gap, it is relatively convenient to extend the first discharge pipe from the second feed port into the second feed pipe. Moreover, the first dust-proof gap is tapered from bottom to top. When the raw material is transported to the vibrating feeder, the dust-containing gas generated will move along the first dust-proof gap. During the movement of the dust-containing gas, part of the dust in the dust-containing gas will collide with the outer wall of the first discharge pipe and the inner wall of the second feed pipe, enabling part of the dust to fall into the vibrating feeder. Thus, through the tapered first dust-proof gap, the gas part and the dust part in the dust-containing gas can be effectively separated, causing the dust part to fall into the vibrating feeder and the gas part to be discharged from the first dust-proof gap, thereby further preventing the dust generated after the raw material is transported to the vibrating feeder from flying out of the vibrating feeder. Similarly, a dust-proof gap is formed between the second discharge pipe and the first feed pipe. Through the second dust-proof gap, it is relatively convenient to extend the second discharge pipe from the first feed port into the first feed pipe. And the second dust-proof gap is tapered from bottom to top. Through the tapered second dust-proof gap, it can further prevent the dust generated after the raw material is transported to the weighing bin from flying out of the weighing bin. Through the cooperation of the first feed pipe, the first discharge pipe, the second feed pipe, the second discharge pipe, the first dust-proof gap and the second dust-proof gap, the present utility model effectively prevents dust from flying out of the vibrating feeder and the weighing bin, with less pollution and less impact on the health of the operators. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.
[0020] Figure 1 Structural schematic diagram of an embodiment of the dust-proof vibrating feeder provided by the present utility model;
[0021] Figure 2 Schematic diagram of the movement trajectory of the dust-containing gas during the process of transporting the raw material to the vibrating feeder in an embodiment of the dust-proof vibrating feeder provided by the present utility model;
[0022] Figure 3 For Figure 2 Partial enlarged schematic diagram at A in
[0023] Explanation of the reference numerals in the drawings:
[0024] 100, Dust-proof Vibrating Feeding Device; 10, Silo; 11, First Discharge Pipe; 20, Weighing Bin; 21, First Feed Pipe; 211, First Feed Inlet; 30, Vibrating Feeder; 31, Second Feed Pipe; 311, Second Feed Inlet; 32, First Dust-proof Gap; 33, Second Discharge Pipe; 34, Second Dust-proof Gap; 40, First Dust Filter Structure; 41, First Dust Filter Cover; 42, First Mounting Ear; 43, Second Mounting Ear; 50, Second Dust Filter Structure; 51, Second Dust Filter Cover; 52, Third Mounting Ear; 53, Fourth Mounting Ear; 200, Raw Materials.
[0025] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed Embodiment
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0027] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0028] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0029] The present utility model provides a dust-proof vibrating feeding device 100.
[0030] Please refer to Figures 1 to 3, in an embodiment of the present utility model, the dust-proof vibrating feeding device 100 includes a feed bin 10, a weighing bin 20, and a vibrating feeder 30; wherein, a first discharge pipe 11 is connected to the bottom of the feed bin 10, and the end of the first discharge pipe 11 away from the feed bin 10 is the first discharge end; a first feed pipe 21 is connected to the top of the weighing bin 20, and the end of the first feed pipe 21 away from the weighing bin 20 is the first feed end, and a first feed port 211 is provided at the first feed end; a second feed pipe 31 is connected to the top of the vibrating feeder 30, and the end of the second feed pipe 31 away from the vibrating feeder 30 is the second feed end, and a second feed port 311 is provided at the second feed end. The first discharge pipe 11 extends into the second feed pipe 31 from the second feed port 311 and is connected to the second feed pipe 31. A first dust-proof gap 32 communicating with the second feed port 311 is formed between the first discharge pipe 11 and the second feed pipe 31. The first dust-proof gap 32 is tapered in the direction from the first discharge end to the second feed port 311. A second discharge pipe 33 is connected to the bottom of the vibrating feeder 30, and the end of the second discharge pipe 33 away from the vibrating feeder 30 is the second discharge end. The second discharge pipe 33 extends into the first feed pipe 21 from the first feed port 211 and is connected to the first feed pipe 21. A second dust-proof gap 34 is formed between the second discharge pipe 33 and the first feed pipe 21. The second dust-proof gap 34 is tapered in the direction from the second discharge end to the first feed port 211.
[0031] The technical solution of the present utility model is that a first discharge pipe 11 is connected to the bottom of the feed bin 10, and a second feed pipe 31 is connected to the top of the vibrating feeder 30. The upper end of the second feed pipe 31 is the second feed end, and a second feed port 311 is provided at the second feed end. The first discharge pipe 11 extends into the second feed pipe 31 from the second feed port 311. When the raw material 200 is transported from the feed bin 10 through the first discharge pipe 11 and the second feed pipe 31 to the vibrating feeder 30, it can effectively prevent the dust generated after the raw material 200 is transported to the vibrating feeder 30 from flying out of the vibrating feeder 30. Similarly, a second discharge pipe 33 is connected to the bottom of the vibrating feeder 30, and a first feed pipe 21 is connected to the top of the weighing bin 20. The upper end of the first feed pipe 21 is the first feed end, and a first feed port 211 is provided at the first feed end. The second feed pipe 31 extends into the first feed pipe 21 from the first feed port 211, which can effectively prevent the dust generated after the raw material 200 is transported from the vibrating feeder 30 to the weighing bin 20 from flying out of the weighing bin 20.
[0032] Furthermore, a first dust-proof gap 32 is formed between the first discharge pipe 11 and the second feed pipe 31. Through the first dust-proof gap 32, the first discharge pipe 11 can be conveniently inserted into the second feed pipe 31 from the second feed port 311. The first dust-proof gap 32 is tapered from bottom to top. When the raw material 200 is transported to the vibrating feeder 30, the dust-containing gas generated moves along the first dust-proof gap 32. During the movement of the dust-containing gas, referring to Figure 2 and Figure 3 as shown, Figure 3 in which the dotted line is the movement trajectory of the gas part in the dust-containing gas, Figure 3 and the solid line is the movement trajectory of the dust part in the dust-containing gas. The dust part in the dust-containing gas will collide with the outer wall of the first discharge pipe 11 and the inner wall of the second feed pipe 31, enabling the dust part to fall into the vibrating feeder 30. Thus, through the tapered first dust-proof gap 32, the gas part and the dust part in the dust-containing gas can be effectively separated, the dust part can fall into the vibrating feeder 30, and the gas part can be discharged from the first dust-proof gap 32, further preventing the dust generated after the raw material 200 is transported to the vibrating feeder 30 from flying out of the vibrating feeder 30. Similarly, a dust-proof gap is formed between the second discharge pipe 33 and the first feed pipe 21. Through the second dust-proof gap 34, the second discharge pipe 33 can be conveniently inserted into the first feed pipe 21 from the first feed port 211. The second dust-proof gap 34 is tapered from bottom to top. Through the tapered second dust-proof gap 34, the dust generated after the raw material 200 is transported to the weighing bin 20 can be further prevented from flying out of the weighing bin 20. By the cooperation of the first feed pipe 21, the first discharge pipe 11, the second feed pipe 31, the second discharge pipe 33, the first dust-proof gap 32 and the second dust-proof gap 34, the present utility model effectively prevents dust from flying out of the vibrating feeder 30 and the weighing bin 20, with less pollution and less impact on the health of the operators.
[0033] In an embodiment of the present utility model, the first discharge pipe 11 is tapered from the direction of the material bin 10 to the first discharge end, and the second feed pipe 31 is a pipe with a constant diameter; the second discharge pipe 33 is tapered from the direction of the vibrating feeder 30 to the second discharge end, and the first feed pipe 21 is a pipe with a constant diameter.
[0034] Specifically, as shown in Figure 1 and Figure 2As shown, the first feed pipe 21 and the second feed pipe 31 are both equal-diameter pipes. The first discharge pipe 11 and the second discharge pipe 33 are both tapered downward from top to bottom. A first dust-proof gap 32 that tapers upward from bottom to top can be formed between the first discharge pipe 11 and the second feed pipe 31 that are tapered downward from top to bottom. And a second dust-proof gap 34 that tapers upward from bottom to top can be formed between the second discharge pipe 33 and the first feed pipe 21 that are tapered downward from top to bottom. It is simple and convenient and easy to manufacture.
[0035] In an embodiment of the present invention, the maximum diameter of the first discharge pipe 11 is smaller than the diameter of the second feed pipe 31, and the maximum diameter of the second discharge pipe 33 is smaller than the first feed pipe 21.
[0036] Specifically, as Figure 1 and Figure 2 shown, the maximum diameter of the first discharge pipe 11 is smaller than the diameter of the second feed pipe 31, which can ensure that the first discharge pipe 11 can extend into the second feed pipe 31. The maximum diameter of the second discharge pipe 33 is smaller than the first feed pipe 21, which can ensure that the second discharge pipe 33 can extend into the first feed pipe 21. The structure is reasonable.
[0037] In an embodiment of the present invention, the end of the first feed pipe 21 connected to the top of the vibrating feeder 30 is the first connection end, the end of the second feed pipe 31 connected to the top of the vibrating feeder 30 is the second connection end. The first discharge end pipe extends into the second feed pipe 31 from the second feed port 311 and extends to be flush with the second connection end. The second discharge end extends into the first feed pipe 21 from the first feed port 211 and extends to be flush with the first connection end.
[0038] Specifically, as Figure 1 and Figure 2 shown, the lower end of the first feed pipe 21 is the first connection end, the lower end of the second feed pipe 31 is the second connection end. The lower end of the first discharge end pipe extends to be flush with the lower end of the second feed pipe 31, and the lower end of the second discharge end pipe extends to be flush with the lower end of the first feed pipe 21. This can make the first dust-proof gap 32 and the second dust-proof gap 34 have a longer length, so that the passing distance of the dust-containing gas in the first dust-proof gap 32 and the second dust-proof gap 34 is longer, thereby better separating the gas part and the dust part in the dust-containing gas, and further preventing dust from flying out of the vibrating feeder 30 and the weighing bin 20, with less pollution.
[0039] In an embodiment of the present utility model, a first dust filtering structure 40 is sleeved outside the first discharge pipe 11 and outside the second feed pipe 31, and the first dust filtering structure 40 seals the first feed port 211; a second dust filtering structure 50 is sleeved outside the second discharge pipe 33 and outside the first feed pipe 21, and the second dust filtering structure 50 seals the second feed port 311.
[0040] Specifically, as Figure 1 and Figure 2 shown, the first dust filtering structure 40 can seal the second feed port 311, and the second dust filtering structure 50 can seal the first feed port 211. The dust-containing gas overflowing from the first dust-proof gap 32 and the second dust filtering gap can be filtered by the first dust filtering structure 40 and the second dust filtering structure 50 respectively, so as to further prevent dust from flying out of the vibrating feeder 30 and the weighing bin 20, with less pollution.
[0041] In an embodiment of the present utility model, the first dust filtering structure 40 includes a first dust filtering cover 41. The first dust filtering cover 41 is sleeved and connected outside the first discharge pipe 11 and outside the second feed pipe 31, and the first dust filtering cover 41 seals the first feed port 211; the second dust filtering structure 50 includes a second dust filtering cover 51. The second dust filtering cover 51 is sleeved and connected outside the second discharge pipe 33 and outside the first feed pipe 21, and the second dust filtering cover 51 seals the second feed port 311.
[0042] Specifically, as Figure 1 shown, by sleeving and connecting the first dust filtering cover 41 outside the first discharge pipe 11 and outside the second feed pipe 31, the second feed port 311 can be sealed to filter the dust-containing gas overflowing from the first dust-proof gap 32. By sleeving and connecting the second dust filtering cover 51 outside the second discharge pipe 33 and outside the first feed pipe 21, the first feed port 211 can be sealed to filter the dust-containing gas overflowing from the second dust-proof gap 34, and the structure is simple and reasonable.
[0043] In an embodiment of the present utility model, a first mounting ear 42 is arranged outside the first discharge pipe 11, a second mounting ear 43 is arranged outside the second feed pipe 31, and two ends of the first dust filtering cover 41 are detachably connected to the first mounting ear 42 and the second mounting ear 43 respectively; a third mounting ear 52 is arranged outside the second discharge pipe 33, a fourth mounting ear 53 is arranged outside the first feed pipe 21, and two ends of the second dust filtering cover 51 are detachably connected to the third mounting ear 52 and the fourth mounting ear 53 respectively.
[0044] Specifically, as Figure 1 and Figure 2As shown in the figure, through the first mounting ear 42 on the outer side of the first discharge pipe 11 and the second mounting ear 43 provided on the outer side of the second feed pipe 31, both ends of the first dust filter cover 41 are detachably connected to the first mounting ear 42 and the second mounting ear 43, so that the first dust filter cover 41 can be installed on the outer sides of the first discharge pipe 11 and the second feed pipe 31, which is simple and convenient, and the first dust filter cover 41 is easy to replace; through the third mounting ear 52 on the outer side of the second discharge pipe 33 and the fourth mounting ear 53 provided on the outer side of the first feed pipe 21, both ends of the second dust filter cover 51 are detachably connected to the third mounting ear 52 and the fourth mounting ear 53, so that the second dust filter cover 51 can be installed on the outer sides of the second discharge pipe 33 and the first feed pipe 21, which is simple and convenient, and the second dust filter cover 51 is easy to replace.
[0045] In an embodiment of the present utility model, both the first dust filter cover 41 and the second dust filter cover 51 are dust-proof cloth covers. Specifically, using a dust-proof cloth cover as the first dust filter cover 41 and the second dust filter cover 51 has a good filtering effect, can meet the filtering requirements of the first dust filter cover 41 and the second dust filter cover 51, and is cheap and economical.
[0046] In an embodiment of the present utility model, the first dust filtering structure 40 includes a plurality of the first dust filter covers 41, and the plurality of the first dust filter covers 41 are sleeved and connected to the outer sides of the first discharge pipe 11 and the second feed pipe 31 in sequence from outside to inside; the second dust filtering structure 50 includes a plurality of the second dust filter covers 51, and the plurality of the second dust filter covers 51 are sleeved and connected to the outer sides of the second discharge pipe 33 and the first feed pipe 21 in sequence from outside to inside.
[0047] Specifically, a plurality of first dust filter covers 41 are sleeved on the outer sides of the first discharge pipe 11 and the second feed pipe 31 from outside to inside, and a plurality of first dust filter covers 41 are sleeved on the outer sides of the second discharge pipe 33 and the first feed pipe 21 from outside to inside, which can better filter the dust-containing gas overflowing from the first dust-proof gap 32 and the second dust-proof gap 34, thereby more effectively preventing dust from flying out of the vibrating feeder 30 and the weighing bin 20.
[0048] In an embodiment of the present utility model, dust detectors are provided at both the first feed end near the first feed port 211 and the second feed end near the second feed port 311.
[0049] Specifically, the dust detector can detect the dust content in the gas discharged from the first feed port 211 and the second feed port 311, so as to ensure that the dust content in the gas discharged from the first feed port 211 and the second feed port 311 meets the requirements, effectively ensuring less pollution and effectively ensuring less impact on the health of the operators.
[0050] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.
Claims
1. A dust-proof vibrating feeding device, characterized in that, The dust-proof vibrating feeding device includes: A silo, the bottom of the silo is connected to a first discharge pipe, and one end of the first discharge pipe away from the silo is a first discharge end; A weighing bin, the top of the weighing bin is connected to a first feed pipe, one end of the first feed pipe away from the weighing bin is a first feed end, and a first feed opening is provided at the first feed end; A vibrating feeder, the top of the vibrating feeder is connected to a second feed pipe, one end of the second feed pipe away from the vibrating feeder is a second feed end, and a second feed opening is provided at the second feed end. The first discharge pipe extends into the second feed pipe from the second feed opening and is connected to the second feed pipe. A first dust-proof gap communicating with the second feed opening is formed between the first discharge pipe and the second feed pipe. The first dust-proof gap is tapered in the direction from the first discharge end to the second feed opening. The bottom of the vibrating feeder is connected to a second discharge pipe, and one end of the second discharge pipe away from the vibrating feeder is a second discharge end. The second discharge pipe extends into the first feed pipe from the first feed opening and is connected to the first feed pipe. A second dust-proof gap is formed between the second discharge pipe and the first feed pipe. The second dust-proof gap is tapered in the direction from the second discharge end to the first feed opening.
2. The dust-proof vibrating feeding device according to claim 1, characterized in that, The first discharge pipe is tapered in the direction from the silo to the first discharge end, and the second feed pipe is a pipe with a constant diameter; the second discharge pipe is tapered in the direction from the vibrating feeder to the second discharge end, and the first feed pipe is a pipe with a constant diameter.
3. The dust-proof vibration feeding device according to claim 2, characterized in that, The maximum diameter of the first discharge pipe is smaller than the diameter of the second feed pipe, and the maximum diameter of the second discharge pipe is smaller than that of the first feed pipe.
4. The dust-proof vibrating feeding device according to claim 1, wherein, One end of the first feed pipe connected to the top of the vibrating feeder is a first connection end, and one end of the second feed pipe connected to the top of the vibrating feeder is a second connection end. The first discharge end pipe extends into the second feed pipe from the second feed opening and extends to be flush with the second connection end. The second discharge end extends into the first feed pipe from the first feed opening and extends to be flush with the first connection end.
5. The dust-proof vibrating feeding device according to claim 1, characterized in that, A first dust-filtering structure is sleeved on the outer sides of the first discharge pipe and the second feed pipe, and the first dust-filtering structure seals the first feed opening; a second dust-filtering structure is sleeved on the outer sides of the second discharge pipe and the first feed pipe, and the second dust-filtering structure seals the second feed opening.
6. The dust-proof vibrating feeding device according to claim 5, characterized in that, The first dust-filtering structure includes a first dust-filtering cover, the first dust-filtering cover is sleeved and connected to the outer sides of the first discharge pipe and the second feed pipe, and the first dust-filtering cover seals the first feed opening; the second dust-filtering structure includes a second dust-filtering cover, the second dust-filtering cover is sleeved and connected to the outer sides of the second discharge pipe and the first feed pipe, and the second dust-filtering cover seals the second feed opening.
7. The dust-proof vibration feeding device according to claim 6, characterized in that, A first mounting ear is provided on the outer side of the first discharge pipe, a second mounting ear is provided on the outer side of the second feed pipe, and two ends of the first dust filter cover are detachably connected to the first mounting ear and the second mounting ear respectively; a third mounting ear is provided on the outer side of the second discharge pipe, a fourth mounting ear is provided on the outer side of the first feed pipe, and two ends of the second dust filter cover are detachably connected to the third mounting ear and the fourth mounting ear respectively.
8. The dust-proof vibrating feeding device according to claim 6, characterized in that, Both the first dust filter cover and the second dust filter cover are dust-proof cloth covers.
9. The dust-proof vibration feeding device according to claim 6, wherein, The first dust filtering structure includes a plurality of the first dust filter covers, and the plurality of the first dust filter covers are sleeved and connected to the outer sides of the first discharge pipe and the second feed pipe in sequence from outside to inside; the second dust filtering structure includes a plurality of the second dust filter covers, and the plurality of the second dust filter covers are sleeved and connected to the outer sides of the second discharge pipe and the first feed pipe in sequence from outside to inside.
10. The dust-proof vibrating feeding device according to any one of claims 1 to 5, characterized in that, Dust detectors are provided at the first feed end near the first feed port and at the second feed end near the second feed port.