Salt mud washing and recycling equipment

Abstract

The utility model discloses salty mud washing and recycling equipment, which belongs to the field of salty mud processing, solves the problem that certain chloride ions still remain in the conventional salty mud after the salty mud is processed, and comprises a first plate-and-frame filter press, a salty mud stirring tank, a second plate-and-frame filter press and a collecting tank, the first plate-and-frame filter press is used for primarily filtering input primary salt water slurry, and a salt slurry stirring tank for stirring and mixing salt slurry is arranged on the side surface of the first plate-and-frame filter press. According to the device, primary brine and salty mud subjected to primary processing can be subjected to secondary filter pressing and mixing, additives are different during two times of mixing, residual chloride ions in the salty mud can be collected and recycled, the salty mud is repeatedly washed and treated, the overall working quality of the device is guaranteed, and when the salty mud subjected to filter pressing is conveyed, the conveying efficiency is improved. Preliminary crushing can be carried out, so that the mixing effect of a subsequent stirring tank is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of salt mud processing, specifically relates to a salt mud washing and recycling equipment. BACKGROUND

[0002] In the process of making chlorine, hydrogen and caustic soda by electrolysis method with salt as main raw material, the mud discharged is called salt mud, and its main components are Mg (OH) 2, CaCO3, BaSO4 and mud sand. At present, salt mud processing needs to go through multiple processes, and it is a kind of raw material commonly used in the present alkali industry.

[0003] At present, when salt mud is processed, plate and frame filter pressing is generally used for treatment, and general solid waste is transported to the outside of the factory for landfill treatment by a qualified unit, but after processing, the discharged salt mud still contains 10% NaCl, and a certain amount of sodium chloride still exists in the salt mud, causing a certain waste of resources and affecting the overall work quality. UTILITY MODEL CONTENT

[0004] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] To solve the problems in the above background art, the utility model adopts the following technical scheme.

[0006] A salt mud washing and recycling equipment, comprising a first plate and frame filter press, a salt mud stirring tank, a second plate and frame filter press and a collection tank, the first plate and frame filter press is used for preliminary filtration of the input primary salt water mud slurry, the first plate and frame filter press is provided with a salt mud stirring tank on the side for stirring and mixing the salt mud, the salt mud stirring tank is connected with a second plate and frame filter press for further filtration of the slurry through a pipeline on the side, and the collection tank is arranged between the first plate and frame filter press and the second plate and frame filter press to collect the filtrate generated after the first plate and frame filter press and the second plate and frame filter press are filtered.

[0007] As a preferred technical scheme of the utility model, the salt mud stirring tank is provided with a stirrer on the surface, a feeding assembly for inputting salt mud into the salt mud stirring tank is arranged on the side of the salt mud stirring tank, and a conveying assembly for discharging the mixed slurry is arranged at the bottom end of the salt mud stirring tank.

[0008] As a preferred technical scheme of the utility model, the feeding assembly comprises a conveying bin, an auger and a driving motor, the conveying bin is installed at one side of the top end of the salt mud stirring tank, the auger is rotatably installed inside the conveying bin, and the driving motor is installed at the side of the conveying bin and fixedly connected with the end of the auger through the output end of the driving motor penetrating the conveying bin.

[0009] As a preferred technical scheme of the utility model, the conveying bin is provided with a feeding port for output material at the side close to the feeding end of the salt mud stirring tank, and is provided with an input port for input material at the side away from the salt mud stirring tank.

[0010] As a preferred technical scheme of the utility model, the conveying assembly comprises an input pipeline, a suction pump and an output pipeline, the input pipeline is installed at the bottom end of the salt mud stirring tank, the input pipeline is communicated with the salt mud stirring tank, the suction pump is arranged at the side of the salt mud stirring tank, the input end of the suction pump is fixedly connected with the input pipeline, and the output end of the suction pump is provided with the output pipeline for conveying material.

[0011] As a preferred technical scheme of the utility model, the input pipeline is externally provided with a control valve for controlling the flow speed of the slurry inside the input pipeline.

[0012] As a preferred technical scheme of the utility model, the salt mud stirring tank is provided with two groups, and the auxiliary mixed materials input into the two groups of salt mud stirring tanks are different, being alkaline water and medium water concentrated water respectively.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] In the utility model, multiple plate-and-frame filter presses and stirring tanks are arranged, so that the once salt water salt mud after preliminary processing can be subjected to secondary pressure filtration and mixing, the additives in the two mixing processes are different, the residual chloride ions in the salt mud can be collected and recovered, the salt mud can be repeatedly washed and treated, the working quality of the whole equipment is ensured, and when the salt mud after pressure filtration is conveyed, the salt mud can be preliminarily crushed, so that the mixing effect of the subsequent stirring tank is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a plan view of the whole structure of the utility model.

[0016] Figure 2 It is a perspective view of the structure of the whole salt mud stirring tank of the utility model.

[0017] Figure 3 It is a perspective view of the structure of the feeding assembly of the utility model.

[0018] Figure 4 It is a structure schematic view of the conveying assembly in the utility model.

[0019] The correspondence between the reference signs of the figures and the component names is as follows:

[0020] 1, first plate and frame filter press; 2, salt mud stirring tank; 3, second plate and frame filter press; 4, collection tank; 5, stirrer; 6, feeding assembly; 61, conveying bin; 62, auger; 63, driving motor; 64, input port; 65, feeding port; 7, conveying assembly; 71, input pipeline; 72, extraction pump; 73, output pipeline. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other ways that are not consistent with the details described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0023] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments. The present application provides the following embodiments.

[0024] As shown in Figure 1 The structure of the salt mud washing and recycling equipment in the embodiment is shown in the figure, which comprises a first plate and frame filter press 1, a salt mud stirring tank 2, a second plate and frame filter press 3 and a collection tank 4. The first plate and frame filter press 1 is used to preliminarily filter the input primary salt water salt mud slurry. The salt mud stirring tank 2 is arranged on the side of the first plate and frame filter press 1 and is used to stir and mix the salt mud. The second plate and frame filter press 3 is connected to the side of the salt mud stirring tank 2 through a pipeline and is used to further filter the slurry. The collection tank 4 is arranged between the first plate and frame filter press 1 and the second plate and frame filter press 3 and is used to collect the filtrate produced after the first plate and frame filter press 1 and the second plate and frame filter press 3 are filtered.

[0025] In use, the primary brine slurry produced by the chlor-alkali device after processing is input into the first plate and frame filter press 1 through the pump body, and through the operation of the first plate and frame filter press 1, the slurry is squeezed and dewatered, and the squeezed slurry is input into the collection tank 4, and the remaining salt mud is input into the salt mud stirring tank 2. Alkaline water is input into the salt mud stirring tank 2 as an additive. Through the operation of the stirrer 5, the materials in the salt mud stirring tank 2 are mixed and stirred. After washing and stirring, the materials are input into the second plate and frame filter press 3 for squeezing and separation again. The slurry is input into the collection tank 4, and the salt mud is input into the next group of salt mud stirring tank 2. This time, the middle water and concentrated water are used as additives. After dilution and stirring, the content of chloride ions in the salt mud is less than 1%. The slurry is input into the subsequent cement production plant as a raw material for cement production, realizing the recovery and utilization of chloride ions in the salt water salt mud.

[0026] As shown in the accompanying Figure 2 The salt mud stirring tank 2 is provided with a stirrer 5 on the surface. A feeding assembly 6 is installed on the side of the salt mud stirring tank 2 for inputting salt mud into the salt mud stirring tank 2. A conveying assembly 7 is installed at the bottom end of the salt mud stirring tank 2 for discharging the mixed slurry.

[0027] In use, the salt mud after squeezing is input into the salt mud stirring tank 2 through the use of the feeding assembly 6, and the salt mud is crushed during the conveying process to achieve preliminary stirring. Then, alkaline water is input into the salt mud stirring tank 2 to mix with the salt mud. The stirrer 5 is operated to fully stir the materials. The stirred materials are input into the next moving part through the conveying assembly 7.

[0028] As shown in the accompanying Figure 3 The feeding assembly 6 includes a conveying bin 61, an auger 62, and a drive motor 63. The conveying bin 61 is installed on one side of the top end of the salt mud stirring tank 2. The auger 62 is rotatably installed in the conveying bin 61. The drive motor 63 is installed on the side of the conveying bin 61. The output end of the drive motor 63 penetrates the conveying bin 61 and is fixedly connected with the end of the auger 62.

[0029] In use, the auger 62 is stably rotated in the conveying bin 61 under the drive of the drive motor 63 to convey the salt mud in the conveying bin 61. The auger 62 itself and the inner wall of the conveying bin 61 are used to stably move the salt mud, and the salt mud is preliminarily crushed to prevent the salt mud after squeezing from caking.

[0030] As shown in the accompanying Figure 3As shown in the figure, it is a structural schematic view of the feeding assembly 6 in the embodiment, the feeding opening 65 for outputting materials is arranged on the side of the inside of the conveying bin 61 close to the feeding end of the salt mud stirring tank 2, and the input opening 64 for inputting materials is arranged on the side of the inside of the conveying bin 61 far from the salt mud stirring tank 2.

[0031] In use, the processed materials in the first plate-and-frame filter press 1 are conveniently input into the inside of the conveying bin 61 through the cooperation of the input opening 64 and the feeding opening 65, and the materials in the inside of the conveying bin 61 are conveyed through the auger 62 and then enter into the inside of the salt mud stirring tank 2 through the feeding opening 65, which facilitates the operation and processing of the next component.

[0032] As shown in the figure, Figure 4 As shown in the figure, it is a structural schematic view of the conveying assembly 7 in the embodiment, the conveying assembly 7 comprises an input pipeline 71, an extraction pump 72 and an output pipeline 73, the input pipeline 71 is installed at the bottom end of the salt mud stirring tank 2, the input pipeline 71 is communicated with the salt mud stirring tank 2, the extraction pump 72 is arranged on the side of the salt mud stirring tank 2, the input end of the extraction pump 72 is fixedly connected with the input pipeline 71, and the output pipeline 73 for conveying materials is installed at the output end of the extraction pump 72.

[0033] In use, the mixed materials in the inside of the salt mud stirring tank 2 are extracted through the operation of the extraction pump 72, the extraction pump 72 is a professional slurry pump, which prevents the occurrence of blockage, and then the materials are input into the inside of the next component under the cooperation of the output pipeline 73.

[0034] As shown in the figure, Figure 4 As shown in the figure, it is a structural schematic view of the conveying assembly 7 in the embodiment, the control valve for controlling the flow speed of the slurry in the inside of the input pipeline 71 is installed on the outside of the input pipeline 71, the flow speed of the materials in the inside of the input pipeline 71 can be controlled in use, and the input pipeline 71 is in a closed state as a whole during the operation of the salt mud stirring tank 2.

[0035] As shown in the figure, Figure 1 As shown in the figure, the salt mud stirring tank 2 is provided with two groups, and the auxiliary mixed materials input into the two groups of salt mud stirring tanks 2 are different, which are alkaline water and medium water, in use, the salt mud stirring tank 2 is provided with two groups, and the additives are different, which can recover the residual chloride ions in the salt mud, and realize the full washing and processing of the salt mud.

[0036] The above is a further detailed description of the utility model in combination with the specific embodiments, which cannot be regarded as the limitation of the specific embodiments of the utility model to these descriptions, and for the ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, which shall be regarded as belonging to the protection range determined by the claims of the utility model.

Claims

1. A salt mud washing and recycling device, characterized in that, The system includes a first plate and frame filter press (1), a salt mud mixing tank (2), a second plate and frame filter press (3), and a collection tank (4). The first plate and frame filter press (1) performs preliminary filtration of the input primary brine and salt mud slurry. A salt mud mixing tank (2) is provided on the side of the first plate and frame filter press (1) for stirring and mixing the salt mud. The side of the salt mud mixing tank (2) is connected to the second plate and frame filter press (3) for further filtration of the slurry through a pipe. The collection tank (4) is located between the first plate and frame filter press (1) and the second plate and frame filter press (3) to collect the filtrate produced after filtration by the first plate and frame filter press (1) and the second plate and frame filter press (3).

2. The salt mud washing and recycling equipment according to claim 1, characterized in that: A stirrer (5) is installed on the surface of the salt mud mixing tank (2), a feeding component (6) for feeding salt mud into the salt mud mixing tank (2) is installed on the side of the salt mud mixing tank (2), and a conveying component (7) for discharging the mixed slurry is installed at the bottom of the salt mud mixing tank (2).

3. The salt mud washing and recycling equipment according to claim 2, characterized in that: The feeding assembly (6) includes a conveying bin (61), an auger (62) and a drive motor (63). The conveying bin (61) is installed on one side of the top of the salt mud mixing tank (2). The auger (62) is rotatably installed inside the conveying bin (61). The drive motor (63) is installed on the side of the conveying bin (61). The output end of the drive motor (63) passes through the conveying bin (61) and is fixedly connected to the end of the auger (62).

4. The salt mud washing and recycling equipment according to claim 3, characterized in that: The conveying chamber (61) has an output material inlet (65) on the side near the feed end of the salt mud mixing tank (2), and an input material inlet (64) on the side away from the salt mud mixing tank (2).

5. The salt mud washing and recycling equipment according to claim 2, characterized in that: The conveying assembly (7) includes an input pipe (71), an extraction pump (72), and an output pipe (73). The input pipe (71) is installed at the bottom of the salt mud mixing tank (2) and is connected to the salt mud mixing tank (2). The extraction pump (72) is located on the side of the salt mud mixing tank (2). The input end of the extraction pump (72) is fixedly connected to the input pipe (71), and the output end of the extraction pump (72) is equipped with an output pipe (73) for conveying materials.

6. The salt mud washing and recycling equipment according to claim 5, characterized in that: The input pipe (71) is equipped with a control valve that controls the flow rate of the slurry inside the input pipe (71).

7. The salt mud washing and recycling equipment according to claim 1, characterized in that: There are two sets of salt mud mixing tanks (2), and the auxiliary mixing materials input into the two sets of salt mud mixing tanks (2) are different, namely alkaline water and concentrated water.

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