Brine external circulation type salt leaching machine

Abstract

The utility model discloses a brine external circulation type salt leaching machine, and relates to the technical field of salt leaching, the brine external circulation type salt leaching machine comprises a main cylinder body, the upper side of the main cylinder body is fixedly provided with a driving motor, the interior of the main cylinder body is fixedly connected with a support frame, and the main cylinder body is fixedly supported and connected with a flow direction channel through the support frame; wherein the output end of the driving motor is fixedly connected with a transmission shaft, the end, extending into the flow direction channel, of the transmission shaft is fixedly connected with a salt leaching paddle, and brine passes through the flow direction channel through the outer circulation mechanism to circularly flow. Due to the flaring design of the flow direction channel, the whole liquid phase flow and salt particles are decelerated, the effect of separating the salt particles from brine is achieved, the salt particles return to the bottom of the barrel again to be cleaned next time, and rising brine can be collected on the upper portion of the barrel, is accelerated through an external circulation brine pump and then returns into a salt leaching machine to be subjected to salt leaching continuously.

Description

Technical Field

[0001] The utility model relates to the technical field of salt washing, in particular to a brine external circulation type salt washing machine. Background Art

[0002] Salt washing is an important step in the processing of raw salt, especially the processing of edible salt, which requires multiple washing of the raw salt. The washing process is completed by a salt washing machine. The washing method mostly uses water as the cleaning and soaking medium, and mechanical friction is used to peel off and remove impurities on the surface of the raw salt.

[0003] According to different mechanical structures, salt washing machines are mainly divided into spiral salt washing machines and paddle salt washing machines. Both of them complete the salt cleaning process by allowing the spiral surface (paddle) to contact the salt in the brine and causing the salt to produce a relative speed difference in the brine. Taking the paddle type salt washing machine as an example, at the beginning of salt washing, the crushed salt enters the salt washing cylinder filled with brine, and the paddle starts to rotate under the drive of the motor, driving the brine and salt to do circular motion together. Due to the different movement speeds of the two and the beating effect of the paddle on the salt, combined with the osmotic pressure of water on the salt, the impurities on the surface of the salt are stripped off, and at the same time, some soluble ions in the salt are also replaced with the sodium chloride component. After the cleaning process is completed, the brine and salt are separated by centrifugal dehydration equipment to obtain cleaned wet salt.

[0004] The existing paddle-type salt washing machine is affected by its own structure and working principle, and has encountered certain bottlenecks in large-scale production, especially in the current situation where high requirements are placed on product energy consumption assessment. Its main limitation lies in the circular motion of the paddles in the brine. If the processing capacity of the salt washing is increased, the diameter of the cylinder must be increased or the speed of the paddles must be increased. When the diameter of the cylinder increases, the diameter of the paddles also increases accordingly. The increase in the diameter of the paddles will increase the linear velocity of the paddle tip (assuming that the original speed remains unchanged), resulting in greater rotational resistance. The energy consumption of a moving object in water is in a cubic relationship with the speed, that is, if the number of paddles is doubled under the simple condition of the same speed, the energy consumption will increase by 7 times. On the other hand, if the paddle diameter is not increased but only the paddle speed is increased, the energy consumption will increase significantly.

[0005] Therefore, if you want to increase the processing capacity of the salt washing machine, you must make certain adjustments to the structure of the salt washing machine. Therefore, the utility model proposes a salt washing machine with a brine external circulation structure. Utility Model Content

[0006] The purpose of this section is to summarize 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 specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0007] In view of the above problems existing in the existing brine external circulation salt washing machine, the present utility model is proposed.

[0008] Therefore, the purpose of the utility model is to provide a brine external circulation salt washing machine. In view of the structure and operation mode of the existing paddle type salt washing machine, first of all, the flow speed of brine and salt in the cylinder cannot be increased by increasing the diameter or rotation speed of the paddle. Therefore, for the flow speed and flow rate of the brine, other equipment and facilities that are more suitable for increasing the speed and amount of the liquid phase are needed. The utility model selects a professional brine pump to increase the speed and amount of the brine through external circulation, which saves electricity consumption compared to the method of using paddles to accelerate or increase the diameter of the paddles.

[0009] In order to solve the above technical problems, the utility model provides the following technical solutions: a brine external circulation salt washing machine, comprising: a main cylinder, a driving motor is fixedly installed on the upper side of the main cylinder, a support frame is fixedly connected to the inside of the main cylinder, and a flow channel is fixedly supported and connected through the support frame;

[0010] Among them, the output end of the driving motor is fixedly connected to the transmission shaft, and one end of the transmission shaft extending into the flow channel is fixedly connected to the salt washing blade, and the brine circulates through the flow channel through the external circulation mechanism.

[0011] As a preferred solution of the brine external circulation salt washing machine described in the utility model, the external circulation mechanism includes: an external circulation brine pump, the output end of the external circulation brine pump is fixedly connected to an upper circulation pipe, the input end of the external circulation brine pump is fixedly connected to a lower circulation pipe, the upper circulation pipe passes through the bottom of the main cylinder and extends to the inner side of the flow channel, the upper side of the main cylinder is also fixedly connected to an upper liquid collecting tank, and the lower circulation pipe is communicated with the upper liquid collecting tank.

[0012] As a preferred solution of the brine external circulation salt washing machine described in the utility model, the flow channel is arranged vertically downward, and the bottom opening is the brine inlet, and the top opening is the brine outlet.

[0013] As a preferred solution of the brine external circulation salt washing machine described in the utility model, the diameter of the bottom opening of the flow channel is smaller than the top opening, and the middle part of the flow channel is expanded, and its outside is a hyperbolic nozzle structure.

[0014] As a preferred solution of the brine external circulation salt washing machine described in the utility model, the upper liquid collecting tank is a cylinder ring groove processed by stainless steel, and the lower circulation pipe and the upper circulation pipe are both made of stainless steel.

[0015] The beneficial effects of the utility model are as follows: a flow channel is added to stabilize the flow direction of brine and salt particles, allowing them to produce a stable liquid phase flow, and at the same time, the contact probability between salt particles and paddles is increased through the shrinkage design of the flow channel, which can improve the effect of the salt washing process, and then the expansion design of the flow channel is used to slow down the entire liquid phase flow and salt particles, so as to achieve the effect of separating salt particles and brine, and the salt particles return to the bottom of the cylinder for the next cleaning, and the rising brine can be collected at the upper part of the cylinder and then accelerated by the external circulation brine pump and returned to the salt washing machine to continue washing salt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of a brine external circulation salt washing machine proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the top view of the structure of a brine external circulation salt washing machine proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the salt particle running direction structure of a brine external circulation salt washing machine proposed by the utility model;

[0020] Figure 4 The utility model provides a schematic diagram of the brine running direction structure of a brine external circulation salt washing machine.

[0021] In the figure: 1-01, driving motor; 1-02, transmission shaft; 1-03, salt washing blades; 1-04, flow channel; 1-05, external circulation brine pump; 1-06, upper collecting tank; 1-07, lower circulation pipe; 1-08, main cylinder; 1-09, support frame; 1-10, upper circulation pipe. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] Reference Figure 1-Figure 4 , is an embodiment of the utility model, which provides a brine external circulation salt washing machine, the equipment includes: a main cylinder 1-08, the main cylinder 1-08 is a stainless steel cylinder, which needs to meet certain strength and rigidity to withstand the operating load and vibration of the salt washing process and the scouring of the cylinder by the salt slurry, and a driving motor 1-01 is fixedly installed on the upper side of the main cylinder 1-08, which is composed of a waterproof and corrosion-resistant electric motor. Different motors can be selected as driving motors according to the user's usage, usage occasions and speed requirements, but they must meet the requirements of waterproof and salt spray corrosion resistance.

[0027] The main cylinder 1-08 is fixedly connected to the support frame 1-09, and the flow channel 1-04 is fixedly supported and connected through the support frame 1-09. The flow channel 1-04 is vertically downwardly arranged, and the bottom opening is the brine inlet, and the top opening is the brine outlet. The diameter of the bottom opening of the flow channel 1-04 is smaller than the top opening, and the middle part of the flow channel 1-04 is an expanded diameter setting, and the outside is a hyperbolic nozzle structure.

[0028] Among them, the output end of the driving motor 1-01 is fixedly connected to the transmission shaft 1-02, and the transmission shaft 1-02 extends to one end in the flow channel 1-04 and is fixedly connected to the salt-washing blade 1-03. The transmission shaft 1-02 is made of stainless steel, and is subjected to appropriate heat treatment to meet the use requirements. The salt-washing blade 1-03 is made of stainless steel or salt-resistant alloy and other materials. It is connected to the transmission shaft by splines or other connection methods. During its high-speed rotation, it stirs the surrounding brine and beats and stirs the salt particles entrained in the brine to complete the cleaning of the salt particles.

[0029] The brine circulates through the flow channel 1-04 through an external circulation mechanism. The flow channel 1-04 is made of stainless steel and has a hyperbolic nozzle structure. The fluid composed of brine and salt slurry completes the process of deceleration-acceleration-out of the channel inside.

[0030] Specifically, the external circulation mechanism includes: an external circulation brine pump 1-05. The external circulation brine pump 1-05 adopts a standard stainless steel brine pump. The corresponding flow rate and lift can be selected according to the working capacity of the salt washing machine and the cylinder height. The output end of the external circulation brine pump 1-05 is fixedly connected with an upper circulation pipe 1-10, and the input end of the external circulation brine pump 1-05 is fixedly connected with a lower circulation pipe 1-07. The upper circulation pipe 1-10 passes through the bottom of the main cylinder 1-08 and extends to the inside of the flow channel 1-04. The upper side of the main cylinder 1-08 is also fixedly connected with an upper liquid collecting tank 1-06, and the lower circulation pipe 1-07 is connected to the upper liquid collecting tank 1-06. The upper liquid collecting tank 1-06 is a cylinder ring groove processed by stainless steel. The lower circulation pipe 1-07 and the upper circulation pipe 1-10 are both made of stainless steel.

[0031] During use, the salt particles at the bottom of the cylinder are "sucked" into the flow channel 1-04 by the brine and beaten and discharged by the salt-washing paddles 1-03. Since the suction process is completed by brine with a certain flow rate, the brine and salt particles of different particle sizes can complete a self-balanced mixing to achieve the adaptation of the cleaning process to salt particles of different particle sizes. The cleaning work of salt particles of different particle sizes can also be adapted by adjusting different brine flow rates.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A brine external circulation salt washing machine, characterized in that: include: A main cylinder (1-08), a driving motor (1-01) is fixedly mounted on the upper side of the main cylinder (1-08), a support frame (1-09) is fixedly connected to the interior of the main cylinder (1-08), and a flow channel (1-04) is fixedly supported and connected via the support frame (1-09); The output end of the driving motor (1-01) is fixedly connected to a transmission shaft (1-02), and one end of the transmission shaft (1-02) extending into the flow channel (1-04) is fixedly connected to a salt-washing blade (1-03), and the brine is circulated through the flow channel (1-04) by an external circulation mechanism.

2. A brine external circulation salt washing machine according to claim 1, characterized in that: The external circulation mechanism comprises: an external circulation brine pump (1-05), the output end of the external circulation brine pump (1-05) is fixedly connected to an upper circulation pipe (1-10), the input end of the external circulation brine pump (1-05) is fixedly connected to a lower circulation pipe (1-07), the upper circulation pipe (1-10) passes through the bottom of the main cylinder (1-08) and extends to the inner side of the flow channel (1-04), the upper side of the main cylinder (1-08) is also fixedly connected to an upper liquid collecting tank (1-06), and the lower circulation pipe (1-07) is connected to the upper liquid collecting tank (1-06).

3. The brine external circulation salt washing machine according to claim 1, characterized in that: The flow channel (1-04) is arranged vertically downward, and the bottom opening is the brine inlet, and the top opening is the brine outlet.

4. A brine external circulation salt washing machine according to claim 3, characterized in that: The diameter of the bottom opening of the flow channel (1-04) is smaller than that of the top opening, and the middle part of the flow channel (1-04) is arranged with an expanded diameter, and the outside thereof is a hyperbolic nozzle structure.

5. The brine external circulation salt washing machine according to claim 2, characterized in that: The upper liquid collecting tank (1-06) is a cylindrical ring groove processed from stainless steel, and the lower circulation pipe (1-07) and the upper circulation pipe (1-10) are both made of stainless steel.

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