Wood chip screening device based on cyclone separator

Abstract

The utility model discloses a sawdust screening device based on cyclone separators, which comprises a first cyclone separator and a second cyclone separator, the outer wall of the first cyclone separator is provided with a first placing rack, and the outer wall of the second cyclone separator is provided with a second placing rack. An exhaust pipe structure is arranged at the top of the first cyclone separator and the top of the second cyclone separator and comprises a first bent pipe and a second bent pipe, and a pumping pipe is arranged between one end of the first bent pipe and one end of the second bent pipe. According to the utility model, the first cyclone separator and the second cyclone separator are combined to screen wood chips, and meanwhile, the exhaust pipe body structures are arranged at the tops of the first cyclone separator and the second cyclone separator, so that wood chip fragments with larger gravity are rotationally arranged below the first cyclone separator when the wood chips are screened; and wood chips with small gravity are guided by a second bent pipe to fall into a second cyclone separator to be collected, so that the wood chips can be better and smoothly screened in the screening mode.

Description

Technical Field

[0001] The utility model relates to the field of screening equipment, in particular to a wood chip screening device based on a cyclone separator. Background Art

[0002] A cyclone separator is a device that uses centrifugal force to separate solid particles or liquid droplets in an air flow. According to the characteristics of the device, by changing the force of the air suction, some products can be screened using structures with different gravity.

[0003] Since wood chips are composed of fragments and pieces, these raw materials can be recycled and reused, and the two need to be sieved out when utilized, so a screening device is needed to screen the wood chips. The existing wood chip screening device screens through a multi-layer filtering structure. Since it is divided into a multi-layer screen structure, the mesh plate structure located in the first stage of filtration is used to filter the fragments, and the second stage of filtration is used to block and separate the fragments. Through such a setting, the fragment structure of the first stage of filtration will inevitably block the filter holes, causing some fine fragments to be blocked from falling, which will affect the entire screening process. Utility Model Content

[0004] The purpose of the utility model is to provide a wood chip screening device based on a cyclone separator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wood chip screening device based on a cyclone separator, comprising a first cyclone separator and a second cyclone separator, the outer wall of the first cyclone separator is provided with a first placement rack, the outer wall of the second cyclone separator is provided with a second placement rack, the first cyclone separator and the second cyclone separator are arranged at the same height by fixing the first placement rack and the second placement rack, the top of the first cyclone separator and the second cyclone separator is provided with an exhaust pipe body structure, the exhaust pipe body structure includes a first bend pipe and a second bend pipe, and a suction pipe is provided between one end of the first bend pipe and the second bend pipe.

[0006] Preferably, a material collection box is provided at the bottom of the first cyclone separator, and the first cyclone separator and the material collection box are both wrapped and fixed by a first placement rack.

[0007] Preferably, the first placement rack comprises:

[0008] A supporting ring plate, wherein a plurality of supporting vertical rods are arranged on the top of the supporting ring plate;

[0009] The first sleeve is fixedly connected to the top ends of the plurality of supporting vertical rods, the first sleeve is sleeved on the outer wall of the first cyclone separator, and the outer wall of the first sleeve is fixedly connected to the second connecting frame.

[0010] Preferably, an oblique support rod is fixedly connected between the top of the support ring plate and the outer wall of the support vertical rod, and a first fixing block is provided between the inner ring wall of the first sleeve and the outer wall of the first cyclone separator.

[0011] Preferably, the second connecting frame comprises a second ring, an inner ring wall of the second ring is fixedly connected with a plurality of second fixing blocks, and one end of the plurality of second fixing blocks away from the second ring is fixedly connected to an outer wall of the second cyclone separator.

[0012] Preferably, an annular material pipe is arranged around the top side of the first cyclone separator.

[0013] Preferably, an exhaust pipe and a feed pipe are respectively provided at the top of the first cyclone separator and the second cyclone separator, and an end of the exhaust pipe away from the first cyclone separator is through-connected with an end of the first bend pipe away from the pumping pipe, and an end of the feed pipe away from the second cyclone separator is through-connected with an end of the second bend pipe away from the pumping pipe.

[0014] Preferably, the top of the first curved pipe is connected to one end of the pumping pipe, and the top of the second curved pipe is connected to the middle of the pumping pipe.

[0015] Preferably, an inclined baffle is provided at the other end of the pumping pipe and at the point where it passes through the second curved pipe, and a plurality of air holes are provided on the top of the inclined baffle.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model combines a first cyclone separator and a second cyclone separator to screen wood chips, and an exhaust pipe body structure is arranged on the top of the two, and the exhaust pipe of the exhaust pipe body structure is connected to the exhaust fan, so that when the wood chips are screened, the exhaust pipe starts to be connected to the exhaust, and the wood chips to be screened that enter the first cyclone separator are structurally designed, and the wood chip fragments with larger gravity are rotated and arranged from the bottom of the first cyclone separator, and the wood chip fragments with smaller gravity are sucked to the receiving pipe through the top of the first cyclone separator, and are guided by the second bent pipe to fall into the second cyclone separator for collection, so that the wood chips can be screened better and smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a top view of the overall structure of the utility model.

[0020] Figure 3 It is a front view of the overall structure of the utility model.

[0021] Figure 4 This is a cross-sectional view of the structural connection between the exhaust pipe, the feed pipe and the exhaust pipe body structure of the utility model.

[0022] In the figure: 1, first cyclone separator; 101, annular material pipe; 102, exhaust pipe; 103, collecting box; 2, second cyclone separator; 201, feed pipe; 3, first elbow; 4, second elbow; 5, pumping pipe; 501, inclined baffle; 502, air hole; 6, supporting ring plate; 7, supporting vertical rod; 8, oblique support rod; 9, first ring; 901, first fixed block; 10, second ring; 1001, second fixed block. DETAILED DESCRIPTION

[0023] 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 the embodiments. Based on the embodiments in 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.

[0024] The utility model provides Figure 1-4 A wood chip screening device based on a cyclone separator is shown, comprising a first cyclone separator 1 and a second cyclone separator 2, an annular material pipe 101 is arranged around the top side of the first cyclone separator 1, a first placement rack is arranged on the outer wall of the first cyclone separator 1, a second placement rack is arranged on the outer wall of the second cyclone separator 2, the first cyclone separator 1 and the second cyclone separator 2 are arranged at the same height by fixing the first placement rack and the second placement rack, a collection box 103 is arranged at the bottom of the first cyclone separator 1, and the first cyclone separator 1 and the collection box 103 are both wrapped and fixed by the first placement rack.

[0025] An exhaust pipe structure is arranged on the top of the first cyclone separator 1 and the second cyclone separator 2. The exhaust pipe structure includes a first curved pipe 3 and a second curved pipe 4. A pumping pipe 5 is arranged between one end of the first curved pipe 3 and the second curved pipe 4.

[0026] It should be noted that the first cyclone separator 1 is provided with an annular material pipe 101, which serves as a feed port for the wood chips to be screened. After the wood chips to be screened are fed through the annular material pipe 101, the wood chips are rotated and accelerated along the inner wall of the annular material pipe 101 and enter the first cyclone separator 1. The fragments with large gravity rotate along the inner wall of the first cyclone separator 1 under the action of gravity and rotating centrifugal force and fall into the collecting box 103, while the fragments with small gravity follow the wind at the exhaust pipe 102 into the exhaust pipe body structure and enter the second cyclone separator 2 for screening.

[0027] Specifically, the first placement rack includes:

[0028] A supporting ring plate 6, a top end of which is provided with a plurality of supporting vertical rods 7;

[0029] The first sleeve ring 9 is fixedly connected to the top ends of the plurality of supporting vertical rods 7 , the first sleeve ring 9 is sleeved on the outer wall of the first cyclone separator 1 , and the outer wall of the first sleeve ring 9 is fixedly connected to the second connecting frame.

[0030] Furthermore, a diagonal support rod 8 is fixedly connected between the top of the support ring plate 6 and the outer wall of the support vertical rod 7 , and a first fixing block 901 is provided between the inner ring wall of the first ring 9 and the outer wall of the first cyclone separator 1 .

[0031] Specifically, the second connecting frame includes a second ring 10 , an inner ring wall of the second ring 10 is fixedly connected with a plurality of second fixing blocks 1001 , and one end of the plurality of second fixing blocks 1001 away from the second ring 10 is fixedly connected to the outer wall of the second cyclone separator 2 .

[0032] It should be noted that the two ends of the first fixed block 901 are fixed to the inner ring wall of the first ring 9 and the outer wall of the first cyclone separator 1 by welding, so that the first cyclone separator 1 is fixedly supported by the combined design of the supporting ring plate 6, the first ring 9 and the supporting vertical rod 7; the two ends of the second fixed block 1001 are fixed to the inner ring wall of the second ring 10 and the outer wall of the second cyclone separator 2 by welding, and the second ring 10 is fixed to the outer wall of the first ring 9 by welding, so that the first cyclone separator 1 and the second cyclone separator 2 are set at the same height by using the structural combination design.

[0033] Specifically, an exhaust pipe 102 and a feed pipe 201 are respectively provided at the top of the first cyclone separator 1 and the second cyclone separator 2. The end of the exhaust pipe 102 away from the first cyclone separator 1 is through-connected with the end of the first bend pipe 3 away from the pumping pipe 5. The end of the feed pipe 201 away from the second cyclone separator 2 is through-connected with the end of the second bend pipe 4 away from the pumping pipe 5. The first bend pipe 3 and the second bend pipe 4 are fixedly connected to the exhaust pipe 102 and the feed pipe 201 through flanges, and the sealing of the connection is ensured during connection.

[0034] Furthermore, the top of the first curved pipe 3 is connected to one end of the pumping pipe 5 , and the top of the second curved pipe 4 is connected to the middle of the pumping pipe 5 .

[0035] Furthermore, an inclined baffle 501 is provided at the other end of the pumping pipe 5 and at the point where it passes through the second curved pipe 4. A plurality of air holes 502 are provided on the top of the inclined baffle 501. The aperture of the air holes 502 needs to be smaller than the diameter of the wood chips.

[0036] It should be noted that the open end of the suction pipe 5 is used to connect to a suction mechanism such as an exhaust fan, so that suction wind can be formed on the top of the first cyclone separator 1 and the second cyclone separator 2. In this way, the crushed powder is carried by the suction wind force through the exhaust pipe 102 of the first cyclone separator 1 into the suction pipe 5, and then, under the obstruction of the inclined baffle 501, the crushed powder passes through the obstruction and falls into the second cyclone separator 2 for falling screening.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wood chip screening device based on a cyclone separator, comprising a first cyclone separator (1) and a second cyclone separator (2), characterized in that: The outer wall of the first cyclone separator (1) is provided with a first placement rack, and the outer wall of the second cyclone separator (2) is provided with a second placement rack. The first cyclone separator (1) and the second cyclone separator (2) are arranged at the same height by fixing the first placement rack and the second placement rack. An exhaust pipe body structure is arranged on the top of the first cyclone separator (1) and the second cyclone separator (2). The exhaust pipe body structure includes a first curved pipe (3) and a second curved pipe (4). A pumping pipe (5) is arranged between one end of the first curved pipe (3) and the second curved pipe (4).

2. A wood chip screening device based on a cyclone separator according to claim 1, characterized in that: A material collection box (103) is provided at the bottom of the first cyclone separator (1), and the first cyclone separator (1) and the material collection box (103) are both wrapped and fixed by a first placement rack.

3. A wood chip screening device based on a cyclone separator according to claim 2, characterized in that: The first placement rack comprises: A supporting ring plate (6), wherein a plurality of supporting vertical rods (7) are arranged at the top end of the supporting ring plate (6); A first sleeve ring (9), the first sleeve ring (9) is fixedly connected to the top ends of a plurality of supporting vertical rods (7), the first sleeve ring (9) is sleeved on the outer wall of the first cyclone separator (1), and the outer wall of the first sleeve ring (9) is fixedly connected to the second connecting frame.

4. A wood chip screening device based on a cyclone separator according to claim 3, characterized in that: An oblique support rod (8) is fixedly connected between the top of the support ring plate (6) and the outer wall of the support vertical rod (7), and a first fixing block (901) is provided between the inner ring wall of the first sleeve ring (9) and the outer wall of the first cyclone separator (1).

5. The wood chip screening device based on a cyclone separator according to claim 3, characterized in that: The second connecting frame comprises a second sleeve ring (10), the inner ring wall of the second sleeve ring (10) is fixedly connected with a plurality of second fixing blocks (1001), and one end of the plurality of second fixing blocks (1001) away from the second sleeve ring (10) is fixedly connected to the outer wall of the second cyclone separator (2).

6. The wood chip screening device based on a cyclone separator according to claim 1, characterized in that: An annular material pipe (101) is arranged around the top side of the first cyclone separator (1).

7. The wood chip screening device based on a cyclone separator according to claim 1, characterized in that: An exhaust pipe (102) and a feed pipe (201) are respectively provided at the top of the first cyclone separator (1) and the top of the second cyclone separator (2); an end of the exhaust pipe (102) away from the first cyclone separator (1) is connected to an end of the first curved pipe (3) away from the pumping pipe (5); and an end of the feed pipe (201) away from the second cyclone separator (2) is connected to an end of the second curved pipe (4) away from the pumping pipe (5).

8. The wood chip screening device based on a cyclone separator according to claim 7, characterized in that: The top of the first curved pipe (3) is connected to one end of the pumping pipe (5), and the top of the second curved pipe (4) is connected to the middle of the pumping pipe (5).

9. The wood chip screening device based on a cyclone separator according to claim 8, characterized in that: An inclined baffle (501) is provided at the other end of the pumping pipe (5) and at the point where it penetrates the second curved pipe (4), and a plurality of air holes (502) are provided at the top of the inclined baffle (501).

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