Novel salt leaching device and salt production line comprising same

Abstract

The utility model provides a novel salt leaching device and a salt production line comprising the same, which solve the problems of limited feed flow, incomplete salt leaching and the like of the existing salt leaching device, and the main scheme is that the novel salt leaching device comprises a multi-section barrel body, the inner diameters of barrel sections in the barrel body are sequentially reduced from top to bottom, and every two adjacent barrel sections are integrally communicated through a middle conical shell; an overflow port is formed in the outer wall of the shell section located on the top layer, the shell section located on the top layer is correspondingly communicated with the shell section located on the bottom layer through an external buffer barrel, the outer wall of the shell section located on the middle layer is further sleeved with a salt leaching pipe, and the shell section located on the bottom layer is communicated with the shell section located on the middle layer through a salt suction pipe for backflow. A salt slurry inlet is formed in the top of the barrel body, the bottom end of the bottom conical shell is externally connected through a three-way valve, one end of the three-way valve is communicated with the bottom conical shell, the other end of the three-way valve is an emptying opening, and the middle section of the three-way valve is transversely communicated with a flushing water inlet.

Description

TECHNICAL FIELD

[0001] The utility model relates to salt making equipment technical field especially relates to a novel salt washing device and contains its salt making line. BACKGROUND

[0002] Salt making refers to the salt in sea water or underground brine is analyzed, through the evaporation concentration and crystallization process, finally gets the production process of pure edible salt or industrial salt, and the salt making process flow mainly includes the collection raw material, purification treatment, evaporation concentration, crystallization and refining etc.

[0003] And the salt washing device is generally used for the multistage washing operation of salt slurry in the above-mentioned salt making process, and the multistage salt washing device in the existing salt making line is mostly directly connected with adjacent, and this mode is limited to top salt slurry inlet flow when washing, and the top salt slurry inlet flow is easy to overflow, and the one-way type step-by-step washing of salt slurry is easy to exist the problem of incomplete washing, so a novel salt washing device and containing its salt making line are provided to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art, and the utility model provides a novel salt washing device and contains its salt making line. The overflow liquid can be refluxed in the multistage washing process to return the current overflow salt slurry to the upper stage salt washing device for washing operation.

[0005] To solve the above technical problem, the utility model adopts the technical scheme: a novel salt washing device, which comprises: a multi-section cylinder, the inner diameters of the cylinder sections decrease from top to bottom, and each adjacent cylinder section is integrally communicated through an intermediate cone shell, an overflow port is arranged on the outer wall of the cylinder section at the top layer, and the overflow port is communicated with the cylinder section at the bottom layer through an external buffer cylinder, a salt washing pipe is further arranged on the outer wall of the cylinder section at the middle layer, the cylinder section at the bottom layer is communicated with the cylinder section at the middle layer through the salt washing pipe for reflux, the bottom end of the cylinder section at the bottom layer is communicated to the outside through a 60° inner inclined bottom cone shell, a salt slurry inlet is arranged at the top of the cylinder, the bottom end of the bottom cone shell is externally connected through a three-way valve, one end of the three-way valve is communicated with the bottom cone shell, one end is a emptying port, and the intermediate section is transversely communicated with a flushing water inlet.

[0006] Further, the cylinder section comprises three sections, and the inner diameters from top to bottom are 6500mm, 35000mm and 2000mm respectively, and the upper and lower ends of the corresponding intermediate cone shell are flush welded with the cylinder section.

[0007] Further, each intermediate cone shell is arranged at an inclination of 60°.

[0008] Further, the inner diameter of the bottom cone shell ranges from 2000mm to 207mm.

[0009] Further, the top of the cylinder is sealed by a screw cap, and the screw cap is provided with observation openings around.

[0010] Further, the bottom cone shell and the bottom cylinder segment are further communicated with a salt washing liquid inlet.

[0011] Further, the outer wall of the top cylinder segment is further fixed with a support, and the support comprises a plurality of groups and is equidistantly arranged around the outer wall of the cylinder segment.

[0012] Further, each cylinder segment and each cone shell is made of stainless steel and is subjected to pickling passivation treatment.

[0013] A salt making line comprises the salt washing device, and the salt washing device in the salt making line comprises multiple stages, and the salt washing devices in adjacent stages are sequentially communicated.

[0014] Compared with the prior art, the beneficial effects of the present application include that the salt slurry backflow in the multi-stage salt washing operation can be realized by the cooperation of the salt washing pipe of the intermediate cylinder segment and the buffer cylinder, the problems of insufficient salt washing or long salt washing operation time when the top salt slurry flow is too large are avoided, and the salt slurry treatment flow and the salt washing degree can be further improved by the cooperation of the multi-stage salt washing device and the buffer cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0015] The disclosure of the present application will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the present application. In the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0016] Fig. 1 The structure of the salt washing device according to one embodiment of the present application is schematically shown;

[0017] Fig. 2 The process flow of the salt making line according to one embodiment of the present application is schematically shown.

[0018] In the drawings, 1 is a cylinder, 2 is an overflow port, 3 is a buffer cylinder, 4 is a salt washing pipe, 5 is a cylinder segment, 6 is an intermediate cone shell, 7 is a bottom cone, 8 is a salt slurry inlet, 9 is a three-way valve, 10 is a emptying port, 11 is a flushing water inlet, 12 is an observation opening, 13 is a salt washing liquid inlet, and 14 is a support. DETAILED DESCRIPTION

[0019] It is easy to understand that according to the technical scheme of the utility model, a person skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the utility model. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the utility model, and should not be regarded as the whole or regarded as the limitation or restriction of the technical scheme of the utility model.

[0020] According to an embodiment of the utility model Figs. 1-2 It is shown.

[0021] As Fig. 1 shown, for the overall structure, a new salt washing device, comprising: multi-section type cylinder 1, the cylinder 1 is sequentially reduced from top to bottom in the inner diameter of the cylinder section 5, and each adjacent cylinder section 5 is integrally communicated through the intermediate cone shell 6, the outer wall of the cylinder section 5 at the top layer is provided with an overflow port 2, and is communicated with the cylinder section 5 at the bottom layer through the external buffer cylinder 3, the outer wall of the cylinder section 5 at the intermediate layer is also provided with a salt washing pipe 4, the cylinder section 5 at the bottom layer is communicated with the cylinder section 5 at the intermediate layer through the salt washing pipe to return flow, the bottom end of the cylinder section 5 at the bottom layer is communicated to the outside through the 60° inner inclined bottom cone 7 shell, the top of the cylinder 1 is provided with a salt slurry inlet 8, the bottom end of the bottom cone 7 shell is externally connected through a three-way valve 9, one end of the three-way valve 9 is communicated with the bottom cone 7 shell, and one end is a emptying port 10, and the intermediate section is transversely communicated with a washing water inlet 11.

[0022] Specifically, in the embodiment, the cylinder section 5 includes three sections, and the inner diameter size is sequentially 6500mm, 35000mm and 2000mm from top to bottom, and the upper and lower ends of the corresponding intermediate cone shell 6 are flush welded with the cylinder section 5. Each intermediate cone shell 6 is arranged to be 60° inwardly inclined. The inner diameter size of the bottom cone 7 shell ranges from 2000mm to 207mm. The top of the cylinder 1 is sealed by a screw cap, the screw cap is provided with an observation port 12 around, and the bottom cone 7 shell and the cylinder section 5 at the bottom layer are also communicated with a salt washing liquid inlet 13. The outer wall of the cylinder section 5 at the top layer is also fixed with a support 14, the support 14 includes a plurality of groups and is equidistantly arranged around the corresponding cylinder section 5, each cylinder section 5 and each cone shell are made of stainless steel, and the surface is subjected to pickling passivation treatment.

[0023] Similarly, as Fig. 2 shown, for the salt making line comprising the above-mentioned salt washing device is also within the protection scope of the utility model, specifically, a salt making line, comprising the above-mentioned salt washing device, the salt washing device in the salt making line includes multiple stages, and the adjacent stages of the salt washing device are sequentially communicated.

[0024] The utility model discloses a three-stage salt washing device, which is used for washing sodium chloride and sodium sulfate.

[0025] During the salt washing process, taking the second-stage salt washing device as an example, the salt slurry is poured into the device from the top salt slurry inlet 8. When the salt slurry flow is relatively large, the top layer cylinder section 5 will overflow from the overflow port 2 of the top layer cylinder section 5, and then flow into the buffer cylinder 3 (i.e., the second-stage washing barrel in the figure). Then, the salt slurry is pumped back to the salt washing pipe 4 on the outer wall of the middle cylinder section 5 of the first-stage salt washing device, so as to realize secondary backflow cleaning. The emptying port 10 at the bottom of the cylinder body 1 is used for discharging liquid. The washing water inlet 11 is used for avoiding blockage in subsequent cleaning operations. Finally, the emptying port 10 of the third-stage salt washing device is connected to the external salt slurry centrifugal machine, and the subsequent salt and nitrate separation operation is started.

[0026] The technical scope of the utility model is not limited to the above-mentioned content. Those skilled in the art can make various modifications and changes to the above-mentioned embodiments without departing from the technical idea of the utility model, and these modifications and changes should be within the protection scope of the utility model.

Claims

1. A novel salt washing device, characterized in that, include: The cylinder is multi-sectioned, with the inner diameter of each section decreasing sequentially from top to bottom. Each adjacent section is integrally connected via a central conical shell. The outer wall of the top section has an overflow port, which is connected to the bottom section via an external buffer cylinder. The outer wall of the middle section is fitted with a brine washing pipe. The bottom section is connected to the middle section via the brine washing pipe for backflow. The bottom end of the bottom section is connected to the outside via a 60° inward-inclined conical shell. The top of the cylinder has a brine inlet. The bottom end of the conical shell is connected to the outside via a three-way valve. One end of the three-way valve is connected to the conical shell, and the other end is an empty outlet. The middle section is laterally connected to a flushing water inlet.

2. The novel salt washing device according to claim 1, characterized in that: The cylindrical section comprises three sections with inner diameters of 6500mm, 35000mm, and 2000mm from top to bottom, respectively. The upper and lower ends of the corresponding intermediate conical shell are welded flush with the cylindrical section.

3. The novel salt washing device according to claim 2, characterized in that: Each of the intermediate conical shells is inclined inward at 60°.

4. The novel salt washing device according to claim 1, characterized in that: The inner diameter of the bottom conical shell ranges from 2000 to 207 mm.

5. A novel salt washing device according to claim 1, characterized in that: The top of the cylinder is sealed with a screw cap, and observation ports are provided around the screw cap.

6. A novel salt washing device according to claim 1, characterized in that: The bottom conical shell and the bottom cylindrical section are also connected to a brine inlet.

7. A novel salt washing device according to claim 1, characterized in that: The outer wall of the cylindrical section located at the top layer is also fixed with a support, which includes multiple sets and is wrapped with cloth at equal intervals around the corresponding outer wall of the cylindrical section.

8. A novel salt washing device according to claim 1, characterized in that: Each of the cylindrical sections and each of the conical shells is made of stainless steel and the surface has been pickled and passivated.

9. A salt-making line, characterized in that, The salt washing device includes any one of the salt washing devices described in claims 1-8 above, and the salt washing device in the salt production line includes multiple stages, with adjacent stages of the salt washing device connected sequentially along the salt washing path.

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