Special pneumatic conveying and crushing system for xanthan gum powder

Abstract

The utility model discloses a special pneumatic conveying and crushing system for xanthan gum powder, which comprises a drying machine and a crushing machine, a spiral blanking device for controlling blanking is arranged between the drying machine and the crushing machine, and a discharge port of the crushing machine is connected with a cyclone dust collector through a primary pneumatic conveying pipeline. An air outlet of the cyclone dust collector is communicated with the bag-type dust collector through a cyclone gas recovery pipeline, and a screening bin used for particle size separation is arranged on the primary air conveying pipeline. According to the air conveying and smashing system special for the xanthan gum powder, the xanthan gum powder is conveyed through negative pressure, the cyclone dust collector and the bag-type dust collector are arranged, the cyclone dust collector is used for separating most of the xanthan gum powder, the bag-type dust collector is mainly used for separating the xanthan gum powder in airflow, the recovery rate of the xanthan gum powder is increased, loss of the xanthan gum powder is reduced, and the service life of the xanthan gum powder is prolonged. The workshop environment is protected, dust leaked out of equipment can be reduced through the negative pressure air conveying mode, meanwhile, the conveying efficiency can be improved, and the problem that xanthan gum powder is difficult to convey is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of xanthan gum powder production, in particular to a special air conveying and pulverizing system for xanthan gum powder. Background Technique

[0002] Xanthan gum is an odorless, non-toxic light yellow or white powdery solid with many special physical properties. During the pulverizing and conveying processes, static electricity may be generated on xanthan gum particles, which can cause adsorption or agglomeration between the particles, resulting in poor fluidity and dispersibility of the material. At the same time, since xanthan gum is a substance that is easily soluble in water, it is prone to absorbing moisture and increasing humidity during the air conveying and pulverizing processes.

[0003] During the production process in the pulverizing and packaging workshop, it is often necessary to first pulverize the material and then perform the conveying operation to meet the subsequent packaging and processing requirements. The traditional conveying and pulverizing systems have problems such as low pulverizing efficiency, difficult conveying, high energy consumption, and serious dust pollution, which not only affect the production efficiency and product quality but also have an adverse impact on the health of workers and the environment. Content of the Utility Model

[0004] The purpose of the utility model is to provide a special air conveying and pulverizing system for xanthan gum powder to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A special air conveying and pulverizing system for xanthan gum powder includes a dryer and a pulverizer. A screw feeder for controlling the feeding is arranged between the dryer and the pulverizer. The discharge port of the pulverizer is connected to a cyclone dust collector through a primary air conveying pipeline, and the air outlet of the cyclone dust collector is communicated with a bag dust collector through a cyclone gas recovery pipeline.

[0007] As a further scheme of the utility model: A screening bin for separating particle sizes is arranged on the primary air conveying pipeline. A screening plate is arranged in the screening bin, and a return pipeline, a back blowing pipeline, and a filter gas recovery pipeline are also communicated with the screening bin. The return pipeline is communicated with the feeding port of the pulverizer, and the filter gas recovery pipeline is communicated with the cyclone gas recovery pipeline.

[0008] As a further scheme of the utility model: The screening bin is separated into two chambers by the screening plate, namely a return material chamber and a feeding chamber. The return pipeline and the primary air conveying pipeline are both communicated with the return material chamber, and the filter gas recovery pipeline and the back blowing pipeline are communicated with the feeding chamber.

[0009] As a further scheme of the utility model: It further includes an air conveying circulation system;

[0010] The air delivery circulation system includes a circulation pipeline, a high-pressure tank and an atmospheric tank. The exhaust end of the bag filter is communicated with the circulation pipeline, the output end of the circulation pipeline is respectively communicated with the high-pressure tank and the atmospheric tank, and a Roots blower is installed on the circulation pipeline.

[0011] As a further solution of the present utility model: the output end of the screening bin is communicated with the air inlet of the cyclone dust collector through a secondary air delivery pipeline.

[0012] As a further solution of the present utility model: the high-pressure tank is communicated with the secondary air delivery pipeline, the pulse system of the bag filter and the back-blowing pipeline through a high-pressure gas pipeline.

[0013] As a further solution of the present utility model: the atmospheric tank is communicated with the primary air delivery pipeline, the secondary air delivery pipeline and the back-blowing pipeline through an atmospheric pipeline.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] This special air delivery and pulverizing system for xanthan gum powder conveys xanthan gum powder by negative pressure, and is provided with two separation devices, namely a cyclone dust collector and a bag filter. The cyclone dust collector separates most of the xanthan gum powder, and the bag filter mainly separates the xanthan gum powder in the air flow, improving the recovery rate of xanthan gum powder, reducing the loss of xanthan gum dust, protecting the workshop environment. The negative pressure air delivery method can not only reduce the dust leakage of equipment, but also improve the conveying efficiency, solving the problem of difficult conveying of xanthan gum powder. Description of the Drawings

[0016] Figure 1 It is a structural schematic diagram of a special air delivery and pulverizing system for xanthan gum powder;

[0017] Figure 2 It is a structural schematic diagram of the screening bin in a special air delivery and pulverizing system for xanthan gum powder.

[0018] In the figure: 1. dryer; 2. pulverizer; 3. transfer tank; 4. primary air delivery pipeline; 5. screening bin; 6. cyclone dust collector; 7. cyclone gas recovery pipeline; 8. bag filter; 9. circulation pipeline; 10. high-pressure tank; 11. atmospheric tank; 12. filtered gas recovery pipeline; 13. back-blowing pipeline; 14. spiral feeder; 15. return pipeline; 16. secondary air delivery pipeline; 17. screening plate. Detailed Embodiments

[0019] Please refer to Figure 1 and 2, in the embodiment of the present utility model, a special pneumatic conveying and pulverizing system for xanthan gum powder includes a dryer 1 and a pulverizer 2. A spiral feeder 14 for controlling the feeding is arranged between the dryer 1 and the pulverizer 2. The discharge port of the pulverizer 2 is connected to a cyclone dust collector 6 through a primary pneumatic conveying pipeline 4. The air outlet of the cyclone dust collector 6 is connected to a bag dust collector 8 through a cyclone gas recovery pipeline 7. A transfer tank 3 is arranged between the pulverizer 2 and the primary pneumatic conveying pipeline 4. The xanthan gum powder is sent into the primary pneumatic conveying pipeline 4 after passing through the pulverizer 2, and is sucked to the cyclone dust collector 6 under negative pressure. Most of the xanthan gum powder is separated to the bottom by the cyclone dust collector 6 and sent out for packaging from the bottom of the cyclone dust collector 6. A part of the xanthan gum dust will rise with the air flow and be discharged, and is sent into the bag dust collector 8 through the cyclone gas recovery pipeline 7. The small part of the xanthan gum dust rising with the air flow is recovered by filtering through the bag dust collector 8 and sent out for packaging. While reducing dust pollution, the xanthan gum dust is recovered, reducing the loss of xanthan gum dust and protecting the workshop environment. The negative pressure pneumatic conveying method can not only reduce the dust leakage of equipment, but also improve the conveying efficiency and solve the problem of difficult conveying of xanthan gum powder.

[0020] In a preferred embodiment, a screening bin 5 for separating particle sizes is arranged on the primary pneumatic conveying pipeline 4. A screening plate 17 is arranged in the screening bin 5. The screening bin 5 is also connected with a return pipeline 15, a back-blowing pipeline 13 and a filter gas recovery pipeline 12. The return pipeline 15 is connected to the feed inlet of the pulverizer 2, and the filter gas recovery pipeline 12 is connected to the cyclone gas recovery pipeline 7. The screening bin 5 plays an important role in re-screening in the whole system.

[0021] In a preferred embodiment, the screening bin 5 is separated into two chambers by the screening plate 17, namely a return material chamber and a feeding chamber. The return pipeline 15 and the primary pneumatic conveying pipeline 4 are both connected to the return material chamber, and the filter gas recovery pipeline 12 and the back-blowing pipeline 13 are connected to the feeding chamber. The large-particle xanthan gum dust is screened out by the screening plate 17, and the excess air flow is discharged upward through the filter gas recovery pipeline 12 and enters the cyclone gas recovery pipeline 7 to further screen out the xanthan gum dust through the bag dust collector 8 to prevent the loss of xanthan gum dust. Most of the xanthan gum powder will be sucked into the cyclone dust collector 6 for separation under the action of gravity and negative pressure. The filtered large-particle xanthan gum powder will be periodically controlled by the closing and opening of the valve and sent back to the pulverizer 2 for secondary crushing through the return pipeline 15.

[0022] In a preferred embodiment, it further includes a pneumatic conveying circulation system;

[0023] The pneumatic conveying circulation system includes a circulation pipeline 9, a high-pressure tank 10 and an atmospheric tank 11. The exhaust end of the bag dust collector 8 is connected to the circulation pipeline 9. The output end of the circulation pipeline 9 is respectively connected to the high-pressure tank 10 and the atmospheric tank 11. A Roots blower is installed on the circulation pipeline 9. The Roots blower provides negative pressure and stores the recovered gas in the high-pressure tank 10 and the atmospheric tank 11 for recycling.

[0024] In a preferred embodiment, the output end of the screening bin 5 is communicated with the air inlet of the cyclone dust collector 6 through the secondary air conveying pipeline 16. The high-pressure tank 10 is communicated with the secondary air conveying pipeline 16, the pulse system of the bag filter 8 and the back-blowing pipeline 13 through the high-pressure gas pipeline. The high-pressure gas is used for the pulse system of the bag filter 8 and the back-blowing cleaning of the screening plate 17, and the return of xanthan gum powder in the return pipeline 15. When the air pressure is sufficient, it can also be used for air supplement in the pipeline to avoid excessive negative pressure load and difficult material suction.

[0025] In a preferred embodiment, the atmospheric pressure tank 11 is communicated with the primary air conveying pipeline 4, the secondary air conveying pipeline 16 and the back-blowing pipeline 13 through the atmospheric pressure pipeline. The atmospheric pressure tank 11 is a common air storage unit for adjusting air pressure, which makes the air flow circulate and keeps the pressure of the system within the normal range, further reducing the external discharge of air flow and the loss of xanthan gum powder.

[0026] It should be noted that the above embodiments all belong to the same inventive concept of the utility model. The descriptions of the embodiments have their own focuses. For the parts not described in detail in individual embodiments, reference can be made to the descriptions in other embodiments.

[0027] The above embodiments only represent the implementation modes of the utility model. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A xanthan gum powder-specific air conveying and pulverizing system, comprising a dryer (1) and a pulverizer (2), wherein a spiral feeder (14) for controlling the feeding is arranged between the dryer (1) and the pulverizer (2), wherein: The material outlet of the pulverizer (2) is connected to the cyclone dust collector (6) via a primary air delivery pipeline (4), and the air outlet of the cyclone dust collector (6) is connected to the bag dust collector (8) via a cyclone gas recovery pipeline (7).

2. A xanthan gum powder-specific air conveying and pulverizing system according to claim 1, characterized in that: The primary air delivery pipeline (4) is provided with a screening bin (5) for particle size separation, a screening plate (17) is provided in the screening bin (5), and the screening bin (5) is also connected to a return pipeline (15), a back-blowing pipeline (13) and a filtered air recovery pipeline (12), the return pipeline (15) is connected to a feed port of the pulverizer (2), and the filtered air recovery pipeline (12) is connected to a cyclone air recovery pipeline (7).

3. A xanthan gum powder-specific air conveying and pulverizing system according to claim 2, characterized in that: The screening bin (5) is separated into two chambers by a screening plate (17), namely a return chamber and a discharge chamber. The return pipeline (15) and the primary air pipeline (4) are both connected to the return chamber, and the filtered air recovery pipeline (12) and the back-blowing pipeline (13) are connected to the discharge chamber.

4. A xanthan gum powder-specific air conveying and pulverizing system according to claim 3, characterized in that: It also includes an air circulation system; The air conveying circulation system comprises a circulation pipeline (9), a high-pressure tank (10) and a normal-pressure tank (11); the exhaust end of the bag filter (8) is connected to the circulation pipeline (9); the output end of the circulation pipeline (9) is respectively connected to the high-pressure tank (10) and the normal-pressure tank (11); and a Roots blower is installed on the circulation pipeline (9).

5. A xanthan gum powder-specific air conveying and pulverizing system according to claim 4, characterized in that: The output end of the screening bin (5) is connected to the air inlet of the cyclone dust collector (6) via a secondary air supply pipeline (16).

6. A xanthan gum powder-specific air conveying and pulverizing system according to claim 5, characterized in that: The high-pressure tank (10) is connected to the secondary air supply pipeline (16), the pulse system connected to the bag filter (8), and the back-blowing pipeline (13) through the high-pressure gas pipeline.

7. A xanthan gum powder-specific air conveying and pulverizing system according to claim 5, characterized in that: The atmospheric pressure tank (11) is connected to the primary air supply pipeline (4), the secondary air supply pipeline (16) and the blowback pipeline (13) through the atmospheric pressure pipeline.

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