Dilute sulfuric acid recycling device for pigment production

Abstract

The utility model provides a dilute sulphuric acid recycling device for pigment production, and relates to the field of pigment production, the dilute sulphuric acid recycling device comprises a tank body, a circulating assembly and a separating and filtering assembly, the top end of the tank body is provided with the circulating assembly used for recycling dilute sulphuric acid; according to the device, the dilute sulphuric acid can be recycled, the use efficiency is improved, meanwhile, the pigment and the dilute sulphuric acid can be filtered and separated, and the recovery efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pigment production, and particularly to a dilute sulfuric acid recycling device for pigment production. BACKGROUND

[0002] The acid treatment method is used in the production of phthalocyanine blue pigment in the department, and a large amount of about 20% dilute sulfuric acid solution is produced in the production of phthalocyanine blue pigment by using the method, the dilute sulfuric acid solution is discharged into a wastewater treatment tank, neutralized to neutral by adding alkali, and then discharged in compliance after biochemical treatment.

[0003] In the prior art, a large amount of about 20% dilute sulfuric acid solution is discharged into a wastewater treatment tank for neutralization treatment by adding alkali every day, which leads to an increase in the investment in wastewater treatment infrastructure, cannot recycle and utilize the dilute sulfuric acid solution well, increases the production cost, and on the other hand, since the pigment is mixed with the dilute sulfuric acid solution after production, the ordinary filtration separation method is not ideal due to the viscosity of the pigment, which leads to inconvenient recovery and reduces the recovery efficiency.

[0004] Therefore, we improve it and propose a dilute sulfuric acid recycling device for pigment production. UTILITY MODEL CONTENT

[0005] The utility model aims at: in view of the existing problems that the dilute sulfuric acid solution cannot be recycled and utilized well, the production cost is increased, the recovery is not convenient, and the recovery efficiency is reduced.

[0006] In order to realize the above-mentioned utility model purposes and improve the above-mentioned problems, the utility model provides a dilute sulfuric acid recycling device for pigment production, which comprises a tank body, a circulating assembly and a separation and filtration assembly, the top end of the tank body is provided with a circulating assembly for recycling and utilizing dilute sulfuric acid, and the bottom end of the circulating assembly is provided with a separation and filtration assembly for separating and filtering pigment and dilute sulfuric acid.

[0007] The circulating assembly comprises a collecting cylinder arranged at the top end of the tank body, the top end of the collecting cylinder is fixedly connected with a circulating pipe, the middle part of the circulating pipe is fixedly connected with a water suction pipe, the side surface of the water suction pipe is fixedly connected with an air bag, the air bag is provided with a pressing plate on both sides, the side surface of the pressing plate is fixedly connected with a fixed plate, one end of the fixed plate is rotatably connected with a rotating plate, and one end of the rotating plate is fixedly connected with a telescopic air cylinder.

[0008] As a preferred technical scheme of the present application, the collecting cylinder and the tank body are fixedly connected with a through-flow pipe.

[0009] As a preferred technical scheme of the present application, the side surface of the through-flow pipe is provided with a one-way valve.

[0010] As a preferred technical scheme of the present application, the telescopic air cylinder is fixedly connected with the support plate between the telescopic air cylinder and the tank body.

[0011] As a preferred technical scheme of the present application, the separating filter assembly comprises a separating cylinder arranged at the bottom end of the circulating pipe, a filter cylinder rotatably connected inside the separating cylinder, a filter plate fixedly connected inside the filter cylinder, a rotating rod fixedly connected at the bottom end of the filter cylinder, a rotating gear fixedly connected at the bottom end of the rotating rod, and a driving gear arranged at the side of the rotating gear and fixedly connected with a driving motor.

[0012] As a preferred technical scheme of the present application, the rotating gear is engaged with the driving gear through gears.

[0013] As a preferred technical scheme of the present application, the filter plate is provided with filter holes at the top end of the side surface.

[0014] As a preferred technical scheme of the present application, the separating cylinder is fixedly connected with the circulating pipe.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] In the scheme of the present application:

[0017] 1. When the dilute sulfuric acid is in the separating cylinder, the telescopic air cylinder is started to drive the rotating plate to rotate through the telescopic end, and then drive the fixed plate and the extrusion plate to repeatedly extrude the air bag, so that the air bag absorbs water to suck the dilute sulfuric acid from the collecting cylinder into the circulating pipe and then flow back to the collecting cylinder. When the dilute sulfuric acid is needed, the one-way valve is opened to make the dilute sulfuric acid in the collecting cylinder flow back to the tank body to react with the new pigment, thereby realizing the recycling of the dilute sulfuric acid, improving the use efficiency, and solving the problem of the prior art that the dilute sulfuric acid solution cannot be recycled, thereby increasing the production cost.

[0018] 2. After the pigment and the dilute sulfuric acid are reacted, the mixed liquid flows into the filter plate of the filter cylinder. The motor is started to drive the filter cylinder to rotate in the separating cylinder through gear transmission, and the dilute sulfuric acid and the pigment are separated by centrifugal force and the filter plate, so that the dilute sulfuric acid flows into the separating cylinder through the holes, thereby realizing the filtration and separation of the pigment and the dilute sulfuric acid, improving the recovery efficiency, and solving the problem of the prior art that the recovery is not convenient and the recovery efficiency is low. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The overall structure schematic diagram of the dilute sulfuric acid recycling device for pigment production provided by the present application;

[0020] Figure 2 The structure schematic diagram of the collecting cylinder, the circulating pipe and the water suction pipe and other components in the dilute sulfuric acid recycling device for pigment production provided by the present application;

[0021] Figure 3 The cross-sectional structure schematic view of the rotating gear, the driving gear and the driving motor in the dilute sulfuric acid recycling device for pigment production provided in the application is shown in the figure.

[0022] Figure 4 The cross-sectional structure schematic view of the rotating gear, the driving gear and the driving motor in the dilute sulfuric acid recycling device for pigment production provided in the application is shown in the figure. Figure 3 The enlarged structure schematic view of the position B in the figure is shown in the figure.

[0023] Figure 5 The enlarged structure schematic view of the position A in the figure is shown in the figure. Figure 2 The enlarged structure schematic view of the position A in the figure is shown in the figure.

[0024] The figure shows that:

[0025] 1, tank; 2, circulating assembly; 3, separation and filtration assembly; 201, collection cylinder; 202, circulating pipe; 203, water suction pipe; 204, air bag; 205, extrusion plate; 206, fixed plate; 207, rotating plate; 208, telescopic air cylinder; 301, separation cylinder; 302, filtration cylinder; 303, filtration plate; 304, rotating rod; 305, rotating gear; 306, driving gear; 307, driving motor; 4, through-flow pipe; 5, one-way valve; 6, support plate; 7, filtration hole. DETAILED DESCRIPTION

[0026] In order to make the personnel in the technical field better understand the technical scheme of the application, the technical scheme in the embodiments of the application will be described clearly and completely below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by the personnel in the field without making creative efforts should belong to the protection scope of the application.

[0027] In order to make the personnel in the technical field better understand the technical scheme of the application, the technical scheme in the embodiments of the application will be described clearly and completely below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by the personnel in the field without making creative efforts should belong to the protection scope of the application.

[0028] It should be noted that the embodiments in the application and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0029] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] EMBODIMENT

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 andFigure 5 The utility model provides a kind of dilute sulphuric acid recycling device for pigment production, its tank body 1, circulation assembly 2, separation filtering assembly 3, the tank body 1 top is equipped with the circulation assembly 2 for recycling dilute sulphuric acid, the circulation assembly 2 bottom is equipped with the separation filtering assembly 3 for separating and filtering pigment and dilute sulphuric acid;

[0032] The circulation assembly 2 includes a collection cylinder 201 disposed at the top end of the tank body 1, a circulation pipe 202 fixedly connected to the top end of the collection cylinder 201, a water suction pipe 203 fixedly connected to the middle portion of the circulation pipe 202, an air bag 204 fixedly connected to the side of the water suction pipe 203, a pressing plate 205 disposed on both sides of the air bag 204, a fixed plate 206 fixedly connected to the side of the pressing plate 205, a rotating plate 207 rotatably connected to one end of the fixed plate 206, and a telescopic air cylinder 208 fixedly connected to one end of the rotating plate 207. When there is separated dilute sulphuric acid inside the separation cylinder 301, the telescopic air cylinder 208 is manually started to make the telescopic end of the telescopic air cylinder 208 extend and retract. Then, the rotating plate 207 is driven to rotate an angle by the telescopic end, the fixed plate 206 is driven by the rotating plate 207, the pressing plate 205 is repeatedly pressed against the air bag 204 by the fixed plate 206, the air bag 204 sucks the dilute sulphuric acid inside the collection cylinder 201 into the circulation pipe 202 through the water suction pipe 203, and then the dilute sulphuric acid in the circulation pipe 202 flows into the collection cylinder 201. When it is necessary to add dilute sulphuric acid again, the one-way valve 5 is manually opened to make the dilute sulphuric acid inside the collection cylinder 201 flow back into the tank body 1 through the through-flow pipe 4 to react with new pigment. The dilute sulphuric acid can be recycled and reused, and the use efficiency is improved.

[0033] Further, as Figure 1 , Figure 2 and Figure 3As shown, the separation filter assembly 3 includes a separation cylinder 301 arranged at the bottom end of the circulating pipe 202, a filter cylinder 302 rotatably connected inside the separation cylinder 301, a filter plate 303 fixedly connected inside the filter cylinder 302, a rotating rod 304 fixedly connected at the bottom end of the filter cylinder 302, a rotating gear 305 fixedly connected at the bottom end of the rotating rod 304, a driving gear 306 arranged at the side of the rotating gear 305, and a driving motor 307 fixedly connected at the bottom end of the driving gear 306.

[0034] The use process of the dilute sulfuric acid recycling device for pigment production is as follows:

[0035] When the separation cylinder 301 has separated dilute sulfuric acid, the telescopic cylinder 208 is manually started to make the telescopic end of the telescopic cylinder 208 telescopic, then the rotating plate 207 is driven to rotate an angle through the telescopic end, the fixed plate 206 is driven by the rotating plate 207, the extrusion plate 205 is repeatedly extruded by the fixed plate 206, the air bag 204 is repeatedly extruded by the extrusion plate 205, the air bag 204 absorbs the dilute sulfuric acid in the collecting cylinder 201 into the circulating pipe 202 through the water suction pipe 203, then the dilute sulfuric acid in the circulating pipe 202 flows into the collecting cylinder 201, when it is necessary to add dilute sulfuric acid again, the one-way valve 5 is manually opened, the dilute sulfuric acid in the collecting cylinder 201 flows into the tank body 1 again through the through-flow pipe 4 to react with new pigment, when the pigment in the tank body 1 reacts with dilute sulfuric acid, the pigment is mixed with the remaining dilute sulfuric acid and flows into the filter plate 303 in the filter cylinder 302, then the driving motor 307 is started to drive the driving gear 306 to rotate, then the driving gear 306 drives the rotating gear 305 to rotate through gear meshing, then the rotating gear 305 drives the rotating rod 304 to rotate, then the rotating rod 304 drives the filter cylinder 302 to rotate in the separation cylinder 301, because the pigment has viscosity, the filter cylinder 302 separates the dilute sulfuric acid from the pigment through centrifugal motion, and the dilute sulfuric acid is filtered into the separation cylinder 301 through the filter holes 7 on the filter plate 303.

[0036] In the utility model, unless another definite provision and limitation, the term "mount", "link", "connect", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the above-mentioned term in the utility model concrete meaning according to specific circumstances.

[0037] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, and not all the embodiments, the preferred embodiments of the utility model are given in the drawings, but do not limit the patent range of the utility model.The utility model can be realized in many different forms, and contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive.Although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing each specific embodiment can be modified, or part of the technical features can be replaced equivalently.For equivalent structure made by using the contents of the utility model specification and drawings, direct or indirect use in other related technical fields, are also within the patent protection scope of the utility model.

Claims

1. A device for recycling dilute sulfuric acid used in pigment production, characterized in that, It includes a tank (1), a circulation component (2), and a separation filter component (3). The top of the tank (1) is provided with a circulation component (2) for recycling dilute sulfuric acid, and the bottom of the circulation component (2) is provided with a separation filter component (3) for separating the filter pigment and dilute sulfuric acid. The circulation assembly (2) includes a collection cylinder (201) set at the top of the tank (1), a circulation pipe (202) fixedly connected to the top of the collection cylinder (201), a water suction pipe (203) fixedly connected to the middle of the circulation pipe (202), an air bag (204) fixedly connected to the side of the water suction pipe (203), a squeezing plate (205) set on both sides of the air bag (204), a fixing plate (206) fixedly connected to the side of the squeezing plate (205), a rotating plate (207) rotatably connected to one end of the fixing plate (206), and a telescopic cylinder (208) fixedly connected to one end of the rotating plate (207).

2. The dilute sulfuric acid recycling device for pigment production according to claim 1, characterized in that, A flow pipe (4) is fixedly connected between the collection cylinder (201) and the tank (1).

3. The dilute sulfuric acid recycling device for pigment production according to claim 2, characterized in that, A one-way valve (5) is provided on the side of the flow pipe (4).

4. The dilute sulfuric acid recycling device for pigment production according to claim 3, characterized in that, A support plate (6) is fixedly connected between the telescopic cylinder (208) and the tank body (1).

5. A dilute sulfuric acid recycling device for pigment production according to claim 4, characterized in that, The separation and filtration assembly (3) includes a separation cylinder (301) disposed at the bottom end of the circulation pipe (202), a filter cylinder (302) is rotatably connected inside the separation cylinder (301), a filter plate (303) is fixedly connected inside the filter cylinder (302), a rotating rod (304) is fixedly connected at the bottom end of the filter cylinder (302), a rotating gear (305) is fixedly connected at the bottom end of the rotating rod (304), a drive gear (306) is disposed on the side of the rotating gear (305), and a drive motor (307) is fixedly connected at the bottom end of the drive gear (306).

6. The dilute sulfuric acid recycling device for pigment production according to claim 5, characterized in that, The rotating gear (305) and the driving gear (306) are engaged by gear meshing.

7. A dilute sulfuric acid recycling device for pigment production according to claim 6, characterized in that, The filter plate (303) has a filter hole (7) on the side of its top end.

8. A dilute sulfuric acid recycling device for pigment production according to claim 7, characterized in that, The separation cylinder (301) is fixedly connected to the circulation pipe (202).

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