Lower discharging scraper type centrifugal machine for monosultap production

Abstract

The utility model discloses a unloading scraper type centrifuge for monosultap production, which comprises a scraper, filter cloth and a methanol spraying system, the methanol spraying system comprises a methanol main pipeline and a spraying pipe, the spraying pipe is communicated with the methanol main pipeline, the unloading scraper type centrifuge is characterized in that the methanol main pipeline is provided with a first manual valve; the spraying pipeline is further communicated with a cleaning water pipeline capable of conveying process water like the spraying pipe, and a second manual valve is arranged on the cleaning water pipeline. According to the device, a methanol spraying system of an existing lower discharging scraper type centrifugal machine is utilized, a cleaning water pipeline is additionally arranged on a spraying pipe, mutual mixing of process water and methanol is prevented by arranging a first manual valve and a second manual valve, and when filter cloth needs to be cleaned, the first manual valve is closed, the second manual valve is opened, and the filter cloth is cleaned. Process water is introduced into the centrifugal machine to start the centrifugal machine to run at a low speed to clean the filter cake, the structure is simple, and the cleaning efficiency of the filter cloth can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of insecticide production, in particular to a centrifuge used for insecticide production. Background Art

[0002] Insecticide is generally used to kill various pests, such as aphids, mites, locusts, etc. It is a broad-spectrum insecticide. In the production process of insecticide, it is usually necessary to use a bottom-discharging scraper centrifuge to separate the solid and liquid of the insecticide. During the solid-liquid separation process, a certain amount of dirt and residue will be generated in the centrifuge. The existing bottom-discharging scraper centrifuge is equipped with a methanol spray system. During the production process of insecticide, the centrifugal cylinder and scraper of the centrifuge are cleaned through the methanol spray pipe to ensure the cleanliness and normal operation of the equipment.

[0003] In addition, during the centrifugation process, the solid insecticide sheet sticks to the filter cloth. The centrifuge scraper scrapes the insecticide sheet stuck to the filter cloth into the collection bag. In order to avoid the filter cloth on the drum wall from being damaged, a certain distance must be left between the scraper and the filter cloth, so a layer of insecticide filter cake will be left on the drum wall. As the number of uses increases, the centrifugal force pushes the filter cake layer formed by the insecticide sheet closer and closer, resulting in a decrease in the permeability of the filter cloth, an increase in the humidity of the centrifuged solids, and a decrease in product quality. In the prior art, the filter cloth is usually removed and cleaned manually, and the cleaning efficiency is low. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a bottom-discharging scraper-type centrifuge for producing insecticides.

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

[0006] A bottom-discharging scraper centrifuge for the production of insecticides comprises a scraper, a filter cloth and a methanol spray system, wherein the methanol spray system comprises a methanol main pipeline and a spray pipe, wherein the spray pipe is connected to the methanol main pipeline, the liquid outlet direction of the spray pipe is toward the filter cloth, and a first manual valve is arranged on the methanol main pipeline; the spray pipe is also connected to a cleaning water pipeline that can transport process water like the spray pipe, and a second manual valve is arranged on the cleaning water pipeline.

[0007] As a further improvement of the above solution:

[0008] The methanol main pipeline is provided with a first check valve, and the first check valve is arranged between the spray pipe and the first manual valve.

[0009] The cleaning water pipeline is provided with a second check valve, and the second check valve is arranged between the spray pipe and the second manual valve.

[0010] A booster pump is provided on the cleaning water pipeline.

[0011] The spray pipe is provided with a plurality of evenly distributed spray ports.

[0012] The centrifuge is provided with an observation port for observing the cleaning condition of the filter cloth.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] The utility model proposes a bottom-discharging scraper centrifuge for producing insecticides. The methanol spraying system of the existing bottom-discharging scraper centrifuge is utilized, a cleaning water pipeline is added to the spraying pipe, a first manual valve and a second manual valve are provided to prevent process water and methanol from mixing with each other, process water or methanol is selectively introduced into the spraying pipe according to cleaning needs, when the filter cloth needs to be cleaned, the first manual valve is closed, the second manual valve is opened, process water is introduced into the centrifuge, the centrifuge is started to run at a low speed to clean the filter cake, the structure is simple, and the cleaning efficiency of the filter cloth is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 1 is a schematic diagram of the structure of a bottom-discharging scraper centrifuge used for the production of insecticides in the embodiment.

[0016] The symbols in the figure represent:

[0017] 1. Filter cloth; 2. Methanol main pipeline; 21. First manual valve; 22. First check valve; 3. Spray pipe; 31. Spray port; 4. Cleaning water pipeline; 41. Second manual valve; 42. Second check valve; 43. Booster pump; 5. Scraper. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1An embodiment of a bottom-discharging scraper centrifuge for insecticide production of the utility model is shown, comprising a scraper 5, a filter cloth 1 and a methanol spraying system, wherein the methanol spraying system comprises a methanol main pipeline 2 and a spraying pipe 3, wherein the spraying pipe 3 is connected to the methanol main pipeline 2, and a first manual valve 21 is arranged on the methanol main pipeline 2; the spraying pipe 3 is also connected to a cleaning water pipeline 4 that can transport process water to the spraying pipe 3, and a second manual valve 41 is arranged on the cleaning water pipeline 4. In this structure, the existing methanol spraying system of the bottom-discharging scraper centrifuge is utilized, a cleaning water pipeline 4 is added to the spraying pipe 3, and the auxiliary scraper 5 cleans the filter cloth 1, and the liquid outlet direction of the spraying pipe 3 is arranged toward the filter cloth. The first manual valve 21 and the second manual valve 41 are provided to prevent the process water and methanol from mixing with each other. According to the cleaning needs, process water or methanol is introduced into the spray pipe 3. When the filter cloth 1 needs to be cleaned, the first manual valve 21 is closed, the second manual valve 41 is opened, and process water is introduced into the centrifuge to start the centrifuge at a low speed to clean the filter cake. The water generated after the filter cloth 1 is cleaned can be collected using a mobile ton barrel, and the materials in the water can be recycled.

[0020] In this embodiment, a second check valve 42 is provided on the cleaning water pipeline 4, and the second check valve 42 is provided between the spray pipe 3 and the second manual valve 41. In this structure, the first check valve 22 is provided to prevent the cleaning water in the centrifuge from flowing back to the methanol main pipeline 2.

[0021] In this embodiment, a booster pump 43 is provided on the cleaning water pipeline 4. In this structure, the second check valve 42 is provided to prevent the methanol in the centrifuge from flowing back to the cleaning water main pipeline.

[0022] In this embodiment, a booster pump 43 is provided on the cleaning water pipeline 4. In this structure, the impulse of the water flow is increased, and the flushing effect on the filter cake layer is improved.

[0023] In this embodiment, a plurality of evenly distributed spray ports 31 are provided on the spray pipe 3. In this structure, by providing a plurality of spray ports 31, it is prevented that the impact force of the water flow is too concentrated when washing the filter cloth 1, so that the filter cloth 1 is shifted, and the unbalanced body of the centrifuge running at high speed generates vibration, thereby improving the stability of the device.

[0024] In this embodiment, the centrifuge is provided with an observation port for observing the cleaning condition of the filter cloth 1. Through this structure, it is convenient to observe the cleaning condition of the filter cloth 1 and ensure the cleaning effect.

[0025] Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A bottom-discharging scraper centrifuge for producing insecticides, comprising a scraper (5), a filter cloth (1) and a methanol spraying system, wherein the methanol spraying system comprises a methanol main pipeline (2) and a spraying pipe (3), wherein the spraying pipe (3) is connected to the methanol main pipeline (2), and wherein: The liquid outlet direction of the spray pipe (3) is toward the filter cloth (1); the methanol main pipeline (2) is provided with a first manual valve (21); the spray pipe (3) is also connected to a cleaning water pipeline (4) for conveying process water to the spray pipe (3), and the cleaning water pipeline (4) is provided with a second manual valve (41).

2. The bottom-discharging scraper centrifuge for insecticide production according to claim 1, characterized in that: The methanol main pipeline (2) is provided with a first check valve (22), and the first check valve (22) is arranged between the spray pipe (3) and the first manual valve (21).

3. The bottom-discharging scraper centrifuge for the production of insecticides according to claim 2, characterized in that: The cleaning water pipeline (4) is provided with a second check valve (42), and the second check valve (42) is arranged between the spray pipe (3) and the second manual valve (41).

4. The bottom-discharging scraper centrifuge for insecticide production according to claim 1, characterized in that: The cleaning water pipeline (4) is provided with a booster pump (43).

5. The bottom-discharging scraper centrifuge for the production of insecticides according to claim 4, characterized in that: The spray pipe (3) is provided with a plurality of evenly distributed spray ports (31).

6. The bottom-discharging scraper centrifuge for the production of insecticides according to claim 1, characterized in that: The centrifuge is provided with an observation port for observing the cleaning condition of the filter cloth (1).

Images