Feeding dust removal and recovery equipment

Abstract

The utility model relates to feeding dust removal and recovery equipment. The feeding dust removal and recovery equipment is used for treating feeding dust generated during feeding of a reaction tank and comprises an adsorption tank, a first pipeline, a second pipeline and a negative pressure device, and a solvent is arranged in the adsorption tank and can absorb the feeding dust. The first pipeline is used for guiding feeding dust into a solvent, and one end of the second pipeline is communicated to the adsorption tank and avoids the solvent. And the negative pressure device is arranged on the second pipeline and is used for forming negative pressure in the second pipeline and the adsorption tank so as to suck feeding flying dust into the adsorption tank. According to the feeding dust removal and recovery equipment, feeding raised dust is absorbed through a solvent, and a better removal effect is achieved; the feeding raised dust can be continuously guided into the solvent until the raised dust in the solvent reaches the saturation concentration, compared with spraying dust removal, the solvent reaches the higher utilization rate, water saving is facilitated, and the raised dust can be recycled for reuse.

Description

Technical Field

[0001] The present application relates to the technical field of industrial dust removal and recovery, and in particular to a feeding dust removal and recovery device for generating dust from feeding. Background Art

[0002] In industrial production workshops, it is often necessary to feed powder particles with smaller particle sizes. For example, in industrial liquid decolorization, porous adsorption materials with fine particle sizes and large specific surface areas are used for adsorption and removal of pigments. Activated carbon is a specially treated carbon. Organic raw materials (fruit shells, coal, wood, etc.) are heated under air-tight conditions to reduce non-carbon components (this process is called carbonization), and then react with gases. The surface is eroded to produce a well-developed microporous structure. Therefore, it is a widely used porous adsorption material.

[0003] In industrial liquid decolorization, most of them use activated carbon adsorption. When activated carbon is added, dust will be generated, which will affect the normal operation of surrounding equipment and the working environment of workers. Therefore, the dust needs to be collected and removed. However, the existing dust removal method generally uses spraying to settle the dust in the air, which can only remove part of the dust. Moreover, spraying requires a large amount of spraying water, which is then deposited after spraying, and there are many supporting equipment; or use filter bags or cloth bags to remove dust, and collect the tiny activated carbon particles suspended in the air at the feeding port into the filter cartridge through the air collection hood. When the filter cartridge is saturated, it is replaced or rinsed with water. This requires workers to frequently replace the filter cartridge and filter bag, and the activated carbon cannot be reused. Utility Model Content

[0004] Based on this, the present application provides a feeding dust removal and recovery equipment which is easy to operate, low in cost and quick in effect, in order to solve the problems of poor removal effect, high supporting cost and non-recyclability during feeding dust treatment.

[0005] A feeding dust removal and recovery device is used to process the feeding dust generated when feeding a reaction tank, and the feeding dust removal and recovery device comprises:

[0006] An adsorption tank, wherein a solvent is arranged in the adsorption tank, and the solvent can absorb the dust raised by the feeding;

[0007] A first pipe, the first pipe is used to introduce the dust from the feed into the solvent;

[0008] a second pipeline, one end of which is connected to the adsorption tank and avoids the solvent;

[0009] The negative pressure device is arranged on the second pipeline and is used to form a negative pressure in the second pipeline and the adsorption tank so as to suck the feeding dust into the adsorption tank.

[0010] In one embodiment, one end of the first pipe is connected to the top of the reaction tank, and the other end of the first pipe is connected to the bottom of the adsorption tank.

[0011] In one embodiment, the volume of the solvent in the adsorption tank accounts for 0.25-0.75 of the total volume of the adsorption tank.

[0012] In one embodiment, a first valve is disposed on the first pipeline, and / or a second valve is disposed on the second pipeline.

[0013] In one of the embodiments, a dust collector is further provided on the second pipeline, and the dust collector is used to collect the feeding dust overflowing from the adsorption tank.

[0014] In one embodiment, the dust collector is arranged between the adsorption tank and the negative pressure device.

[0015] In one embodiment, the feeding dust removal and recovery equipment further comprises:

[0016] The third pipeline is connected with the adsorption tank and the reaction tank, and is used for guiding the solvent containing the dust from the feed in the adsorption tank back to the reaction tank.

[0017] In one of the embodiments, a third valve is provided on the third pipeline.

[0018] In one embodiment, one end of the third pipe is connected to the bottom of the adsorption tank, and the other end of the third pipe is connected to the top of the reaction tank.

[0019] In one embodiment, the feeding dust removal and recovery equipment further comprises:

[0020] A fourth pipeline, one end of which is connected to the adsorption tank and avoids the solvent, and the other end of which is connected to an air source device, and the air source device is used to input compressed air into the adsorption tank through the fourth pipeline.

[0021] The above-mentioned feeding dust removal and recovery equipment is provided with an adsorption tank, in which a solvent is placed. When feeding materials that are prone to generate dust are fed into the reaction tank, the negative pressure device is turned on, and negative pressure is formed in the adsorption tank through the second pipe, thereby prompting the feeding dust in the reaction tank to enter the adsorption tank through the first pipe and dissolve in the solvent. When the dust in the solvent reaches a saturated concentration, a new solvent can be replaced; the adsorbed saturated solvent is pressed into the reaction tank again through the third pipe to realize the recycling of the feeding dust. Compared with the solution of settling dust by spraying, a better removal effect is achieved; and dust can be continuously introduced into the solvent until the dust in the solvent reaches a saturated concentration, which not only greatly saves the use of solvent and water, but also greatly saves labor. And the dust can be reused, which is economical and environmentally friendly. The overall operation is simple, the workload is small, and the environment is clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a feeding dust removal and recovery device provided in one embodiment of the present application.

[0023] Description of reference numerals:

[0024] 1. Reaction tank; 101. Feeding port; 2. Adsorption tank; 201. Solvent; 3. First pipeline; 4. Second pipeline; 5. Negative pressure device; 6. First valve; 7. Second valve; 8. Dust collector; 9. Third pipeline; 10. Gas source device; 11. Fourth pipeline; 12. Third valve; 14. Fourth valve; 15. Gas purification device. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings, taking the activated carbon that is easy to generate dust as an example. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0026] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0031] like Figure 1 As shown, a reaction tank 1 is shown, in which industrial liquid is placed, and a feeding port 101 is provided at the upper end of the reaction tank 1. Activated carbon is fed into the reaction tank 1 through the feeding port 101, and the industrial liquid is decolorized by the activated carbon. During the activated carbon feeding process, activated carbon will fly out from the feeding port 101, forming large dust, which will pollute the workshop environment and threaten the health of the workshop workers. Therefore, it is necessary to remove the activated carbon dust.

[0032] like Figure 1 As shown, this embodiment provides a feeding dust removal and recovery device for treating activated carbon dust generated when the reactor 1 is fed with activated carbon. Specifically, the feeding dust removal and recovery device includes an adsorption tank 2, a first pipe 3, a second pipe 4 and a negative pressure device 5. A solvent 201 is provided in the adsorption tank 2, and the solvent 201 can absorb activated carbon. The first pipe 3 is used to introduce the activated carbon dust into the solvent 201, and one end of the second pipe 4 is connected to the adsorption tank 2 and avoids the solvent 201. The negative pressure device 5 is arranged on the second pipe 4, and is used to form a negative pressure in the second pipe 4 and the adsorption tank 2 to suck the activated carbon dust into the adsorption tank 2. Specifically, the negative pressure device 5 can be a fan, an air pump or a vacuum pump. The solvent generally uses water or other liquids, which can absorb activated carbon and do not react with the industrial liquid in the reactor 1. Preferably, the solvent uses the same solvent as the industrial liquid.

[0033] By setting an adsorption tank 2, placing a solvent 201 in the adsorption tank 2, and adding activated carbon into the reaction tank 1, the negative pressure device 5 is turned on to form a negative pressure in the adsorption tank 2 through the second pipe 4, thereby prompting the activated carbon dust in the reaction tank 1 to enter the adsorption tank 2 through the first pipe 3 and dissolve in the solvent 201. When the activated carbon in the solvent 201 reaches a saturated concentration, the new solvent 201 can be replaced.

[0034] In order to achieve a better dust collection effect, one end of the first pipe 3 is connected to the top of the reaction tank 1. When the activated carbon put into the reaction tank 1 is lifted up, due to the negative pressure, the activated carbon gathers in the first pipe 3 and will not overflow from the feeding port 101.

[0035] Optionally, the other end of the first pipe 3 is connected to the bottom of the adsorption tank 2 to communicate with the liquid level below the solvent 201 in the adsorption tank 2 , so that the activated carbon output from the first pipe 3 directly reaches the solvent 201 .

[0036] In order to prevent the solvent 201 from being sucked into the second pipe 4 under the negative pressure generated by the negative pressure device 5, the solvent 201 in the adsorption tank 2 cannot be filled. Generally, the volume of the solvent 201 in the adsorption tank 2 accounts for 0.25-0.75 of the total volume of the adsorption tank 2. The usual setting is that the volume of the solvent 201 in the adsorption tank 2 accounts for 0.25-0.5 of the total volume of the adsorption tank 2, and the preferred setting is 0.3.

[0037] Optionally, a first valve 6 is provided on the first pipeline 3, and / or a second valve 7 is provided on the second pipeline 4. In some embodiments, the first valve 6 is provided on the first pipeline 3, and the second valve 7 is provided on the second pipeline 4. In some embodiments, only the first valve 6 or the second valve 7 is provided.

[0038] When the feeding is completed or the solvent 201 needs to be replaced, the negative pressure device 5 is turned off, the first valve 6 and the second valve 7 are closed, and the input of activated carbon into the solvent 201 is stopped.

[0039] When the activated carbon dust is collected and input into the solvent 201, in order to prevent a very small part of the activated carbon from overflowing into the second pipe 4 and entering the air after passing through the negative pressure device 5, affecting the negative pressure device 5 and causing air pollution, a dust collector 8 is also provided on the second pipe 4. The dust collector 8 is used to collect the activated carbon dust overflowing from the adsorption tank 2. The dust collector 8 can specifically be a filter bag dust collector, which can be replaced or flushed and cleaned when the filter bag dust collector is saturated. The amount of activated carbon overflowing from the solvent 201 is relatively small, so it is not necessary to frequently replace or clean the filter bag dust collector.

[0040] Furthermore, the dust collector 8 is arranged between the adsorption tank 2 and the negative pressure device 5. The activated carbon in the second pipe 4 is collected before entering the negative pressure device 5, which plays a role in protecting the negative pressure device 5.

[0041] Optionally, the outlet of the second pipeline 4 is connected to the gas purification device 15, and the gas discharged from the second pipeline 4 is further purified by the gas purification device 15 before being discharged into the air to ensure that the activated carbon dust will not pollute the air after passing through the feeding dust removal and recovery equipment.

[0042] In order to reuse the activated carbon recovered in the adsorption tank 2, the feeding dust removal and recovery equipment also includes a third pipeline 9, which connects the adsorption tank 2 and the reaction tank 1, and is used to guide the solvent 201 containing activated carbon dust absorbed in the adsorption tank 2 back to the reaction tank 1, so as to realize the reuse of activated carbon for decolorization of industrial liquids.

[0043] Optionally, one end of the third pipe 9 is connected to the bottom of the adsorption tank 2, and the other end of the third pipe 9 is connected to the top of the reaction tank 1. That is, the connection port between the third pipe 9 and the adsorption tank 2 is not higher than the lowest liquid level of the solvent 201, and the connection port between the third pipe 9 and the reaction tank 1 is not lower than the highest liquid level of the industrial liquid, so that the solvent 201 in the adsorption tank 2 can be completely guided back to the reaction tank 1.

[0044] Furthermore, a third valve 12 is provided on the third pipeline 9 to control the on-off of the third pipeline 9 through the third valve 12. When the solvent 201 needs to be introduced from the adsorption tank 2 to the reaction tank 1, the third valve 12 is opened, and the third valve 12 is closed at other times.

[0045] In order to press the solvent 201 in the adsorption tank 2 into the reaction tank 1, the feeding dust removal and recovery equipment also includes a fourth pipeline 11, one end of the fourth pipeline 11 is connected to the adsorption tank 2 and avoids the solvent 201, and the other end of the fourth pipeline 11 is connected to the air source device 10, and the air source device 10 is used to input compressed air into the adsorption tank 2 through the fourth pipeline 11 to increase the air pressure in the adsorption tank 2, thereby pressing the solvent 201 in the adsorption tank 2 into the reaction tank 1. Large air compressors are generally configured in production workshops for centralized air supply to form a centralized air supply system, and the air inlet of the fourth pipeline 11 is connected to the air supply system. An air compressor can also be equipped separately as the air source device 10. The specific structural form of the air source device 10 is not limited here.

[0046] Optionally, a fourth valve 14 is provided on the fourth pipeline 11 , and the fourth valve 14 is used to control the on-off of the fourth pipeline 11 .

[0047] Working process of feeding dust removal and recovery equipment:

[0048] S1: Before adding activated carbon to the reaction tank 1, add a proper amount of solvent 201 to the adsorption tank 2, close the third valve 12 and the fourth valve 14, and open the first valve 6 and the second valve 7.

[0049] S2: Start the negative pressure device 5 and start adding activated carbon into the reaction tank 1. After the addition is completed, close the negative pressure device 5, the first valve 6 and the second valve 7.

[0050] S3: When adding activated carbon again, repeat steps S1 and S2 until the activated carbon in the solvent 201 in the adsorption tank 2 reaches a saturated concentration.

[0051] S4: close the negative pressure device 5, the first valve 6 and the second valve 7, open the third valve 12, and slightly open the fourth valve 14 to allow the saturated liquid in the adsorption tank 2 to be back-pressured into the reaction tank 1, so as to realize the reuse of the saturated concentration of dust-raising activated carbon for decolorizing the industrial liquid in the reaction tank 1.

[0052] S5: inject new solvent 201 into the adsorption tank 2, and repeat steps S1-S4.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A feeding dust removal and recovery device, used for treating feeding dust generated when feeding into a reaction tank (1), characterized in that: The feeding dust removal and recovery equipment comprises: An adsorption tank (2), wherein a solvent (201) is arranged in the adsorption tank (2), and the solvent (201) is capable of absorbing the dust generated by the feeding; A first pipe (3), the first pipe (3) being used to guide the dust generated by the feed into the solvent (201); A second pipeline (4), one end of the second pipeline (4) being connected to the adsorption tank (2) and avoiding the solvent (201); A negative pressure device (5) is arranged on the second pipe (4) and is used to form a negative pressure in the second pipe (4) and the adsorption tank (2) so as to suck the feeding dust into the adsorption tank (2).

2. The feeding dust removal and recovery equipment according to claim 1 is characterized in that: One end of the first pipeline (3) is connected to the top of the reaction tank (1), and the other end of the first pipeline (3) is connected to the bottom of the adsorption tank (2).

3. The feeding dust removal and recovery equipment according to claim 1, characterized in that: The volume of the solvent (201) in the adsorption tank (2) accounts for 0.25-0.75 of the total volume of the adsorption tank (2).

4. The feeding dust removal and recovery equipment according to claim 1, characterized in that: The first pipeline (3) is provided with a first valve (6), and / or the second pipeline (4) is provided with a second valve (7).

5. The feeding dust removal and recovery equipment according to claim 1, characterized in that: A dust collector (8) is also provided on the second pipeline (4), and the dust collector (8) is used to collect the feeding dust overflowing from the adsorption tank (2).

6. The feeding dust removal and recovery equipment according to claim 5, characterized in that: The dust collector (8) is arranged between the adsorption tank (2) and the negative pressure device (5).

7. The feeding dust removal and recovery equipment according to any one of claims 1 to 6, characterized in that: The feeding dust removal and recovery equipment also includes: A third pipe (9), the third pipe (9) being connected to the adsorption tank (2) and the reaction tank (1), and being used for guiding the solvent (201) containing the dust from the feed material absorbed in the adsorption tank (2) back to the reaction tank (1).

8. The feeding dust removal and recovery equipment according to claim 7, characterized in that: The third pipeline (9) is provided with a third valve (12).

9. The feeding dust removal and recovery equipment according to claim 7, characterized in that: One end of the third pipe (9) is connected to the bottom of the adsorption tank (2), and the other end of the third pipe (9) is connected to the top of the reaction tank (1).

10. The feeding dust removal and recovery equipment according to claim 7, characterized in that: The feeding dust removal and recovery equipment also includes: A fourth pipeline (11), one end of the fourth pipeline (11) is connected to the adsorption tank (2) and avoids the solvent (201), and the other end of the fourth pipeline (11) is connected to the air source device (10), and the air source device (10) is used to input compressed air into the adsorption tank (2) through the fourth pipeline (11).

Images