Evaporation mother liquor treatment mechanism

Abstract

The utility model belongs to the technical field of evaporation mother liquor treatment, and discloses an evaporation mother liquor treatment mechanism which comprises an evaporation mother liquor tank, a centrifugal dehydrator, a curing stirrer, packaging equipment and a control device, conveying pipes are fixedly installed among the evaporation mother liquor tank, the centrifugal dehydrator, the salty mud storage barrel, the curing stirrer and the packaging equipment, a curing agent storage tank is fixedly installed at the upper end of the curing stirrer, and conveying motors are fixedly installed on the inner walls of the evaporation mother liquor tank, the centrifugal dehydrator, the curing stirrer and the curing agent storage tank. A conveying motor is fixedly installed on the conveying pipe, a conveying rod is fixedly installed on an output shaft of the conveying motor, one end of the conveying rod is rotationally connected with the inner wall of the conveying pipe, and a feeding pipe is fixedly installed at the upper end of the evaporation mother liquor tank. And the stability of the landfill pile body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation mother liquor treatment, in particular to an evaporation mother liquor treatment mechanism. Background Art

[0002] The mother liquor of evaporation contains about 60-90% water, 10-25% salt, and 2-5% organic matter. It is viscous and in a fluid state. Due to its high water content, it is necessary to continue to dehydrate and reduce the amount to generate salt mud with a water content of less than 40%. In order to prevent the salt from being separated out during direct landfill and the displacement of the garbage pile with low bearing capacity, the salt mud needs to be modified and solidified to meet the strength requirements of the special landfill.

[0003] Existing technologies: 1. Directly adding cement, lime and other curing agents to the evaporation mother liquor will produce a large amount of salt mud, which will occupy a large amount of landfill area, and the amount of curing agent used is large and the cost is high. 2. There are also methods that only dehydrate the evaporation mother liquor, package it and then landfill it. If the packaging is damaged, salt will be precipitated, affecting the normal operation of the leachate treatment plant; when the organic matter content is high, the salt mud is in a fluid state, which is not conducive to the stability of the landfill.

[0004] For this reason, an evaporation mother liquor treatment mechanism is proposed, which is upgraded and modified on the basis of the device to solve these shortcomings. Utility Model Content

[0005] The purpose of the utility model is to solve the problems of the background technology and provide an evaporation mother liquor processing mechanism.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A mother liquor processing mechanism for evaporation comprises a mother liquor evaporation tank, a centrifugal dehydrator, a solidifying agitator, a packaging device and a control device, wherein a salt mud storage barrel is fixedly mounted on the upper end of the solidifying agitator, a conveying pipe is fixedly mounted between the mother liquor evaporation tank, the centrifugal dehydrator and the salt mud storage barrel and the solidifying agitator and the packaging device, a curing agent storage tank is fixedly mounted on the upper end of the solidifying agitator, a conveying motor is fixedly mounted on the inner walls of the mother liquor evaporation tank, the centrifugal dehydrator, the solidifying agitator and the solidifying agent storage tank, a conveying rod is fixedly mounted on the output shaft of the conveying motor, one end of the conveying rod is rotatably connected to the inner wall of the conveying pipe, a feeding pipe is fixedly mounted on the upper end of the mother liquor evaporation tank, and an electromagnetic valve 1 is arranged at the connection between the salt mud storage barrel and the solidifying agitator.

[0008] Furthermore, a drainage pipe is fixedly installed on the upper side of the outer end of the evaporation mother liquid tank and the lower side of the outer end of the centrifugal dehydrator, and one end of the drainage pipe is connected to a sewage collection tank.

[0009] Furthermore, a stirring motor is fixedly mounted on the upper ends of the evaporation mother liquid tank and the solidification stirrer, a stirring shaft is fixedly mounted on the output shaft of the stirring motor, and a stirring rod is fixedly connected to the outer end of the stirring shaft.

[0010] Furthermore, a vibration motor is fixedly mounted on the outer end of the salt mud storage barrel.

[0011] Furthermore, a second electromagnetic valve is provided at the connection between the evaporation mother liquid tank, the centrifugal dehydrator, the solidification agitator and the conveying rod, and a meter is fixedly installed at the bottom of the solidification agitator.

[0012] Furthermore, the control device includes a centrifugal dehydrator control device and a solidification stirring control device.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model generates salt mud with a moisture content of ≤40% by evaporating mother liquid and dehydrating it through a centrifugal dehydrator 2, and then adds a curing agent to the stirring curing device to modify and solidify the salt mud to generate a solidified salt mud with a moisture content of ≤20%. After curing for 2 to 5 days, the unconfined compressive strength of the solidified salt mud is 200 to 500 kPa, and the direct shear strength and cohesion are 100 to 300 kPa, which meet the strength requirements of domestic waste landfills. The treatment system collects both waste gas and dust, and can prevent the generation of odor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the evaporation mother liquid tank of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the solidification agitator of the utility model.

[0018] Figure numerals: 1. Evaporation mother liquor tank; 2. Centrifugal dehydrator; 3. Salt mud storage barrel; 4. Curing agitator; 5. Curing agent storage tank; 6. Meter; 7. Packing equipment; 8. Sewage collection tank; 10. Drain pipe; 11. Feed pipe; 12. Stirring motor; 121. Stirring shaft; 123. Stirring rod; 13. Delivery pipe; 15. Delivery motor; 151. Delivery rod; 152. Solenoid valve 2; 16. Solenoid valve 1. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals 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. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do 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 invention.

[0023] like Figures 1 to 3 As shown, an evaporation mother liquor processing mechanism comprises an evaporation mother liquor tank 1, a centrifugal dehydrator 2, a solidification agitator 4, a packaging device 7 and a control device, a salt mud storage barrel 3 is fixedly installed on the upper end of the solidification agitator 4, a conveying pipe 13 is fixedly installed between the evaporation mother liquor tank 1, the centrifugal dehydrator 2 and the salt mud storage barrel 3 and the solidification agitator 4 and the packaging device 7, a curing agent storage tank 5 is fixedly installed on the upper end of the solidification agitator 4, a conveying motor 15 is fixedly installed on the inner wall of the evaporation mother liquor tank 1, the centrifugal dehydrator 2, the solidification agitator 4 and the curing agent storage tank 5, a conveying rod 151 is fixedly installed on the output shaft of the conveying motor 15, one end of the conveying rod 151 is rotatably connected to the inner wall of the conveying pipe 13, a feeding pipe 11 is fixedly installed on the upper end of the evaporation mother liquor tank 1, an electromagnetic valve 16 is provided at the connection between the salt mud storage barrel 3 and the solidification agitator 4, and a vibration motor is fixedly installed on the outer end of the salt mud storage barrel 3;

[0024] Specifically, the conveying motor 15 is started to drive the conveying rod 151 to convey the material in the evaporation mother liquid tank 1 to the centrifugal dehydrator 2, the centrifugal dehydrator 2 is turned on to dehydrate the evaporation mother liquid, and the generated salt mud is discharged into the salt mud storage barrel 3, the electromagnetic valve 16 is opened, and the material is conveyed to the solidification agitator 4, and the vibrator is used when the salt mud storage barrel 3 is not unloaded smoothly, the screw conveyor is turned on to convey the curing agent to the solidification agitator 4, and finally, the salt mud 8 is packaged by the packaging equipment, and the packaged and sealed salt mud is cured for 2 to 5 days, and then transported to the landfill for special landfill.

[0025] like Figure 1 and Figure 2 As shown, a drain pipe 10 is fixedly installed on the upper outer side of the evaporation mother liquid tank 1 and the lower outer side of the centrifugal dehydrator 2, and one end of the drain pipe 10 is connected to a sewage collection tank 8; specifically, it is convenient to centrally collect the sewage in the treatment process.

[0026] like Figure 1 and Figure 3 As shown, an electromagnetic valve 152 is provided at the connection between the evaporation mother liquid tank 1, the centrifugal dehydrator 2, the curing agitator 4 and the conveying rod 151, and a meter 6 is fixedly installed at the bottom of the curing agitator 4; specifically, the weight of the curing agent to the curing agitator 4 is calculated by the meter 6 to facilitate the control of the conveying between materials.

[0027] like Figure 1 and Figure 2 As shown, a stirring motor 12 is fixedly installed on the upper end of the evaporation mother liquid tank 1 and the solidification agitator 4, a stirring shaft 121 is fixedly installed on the output shaft of the stirring motor 12, a stirring rod 123 is fixedly connected to the outer end of the stirring shaft 121, and a vibration motor is fixedly installed on the outer end of the salt mud storage barrel 3; specifically, the stirring shaft 121 is driven to rotate by starting the stirring motor 12, so that the stirring rod 123 rotates the material, so as to avoid the precipitation of the mother liquid after cooling and clogging the pipeline, and quickly stir and mix the salt mud and curing agent inside the solidification agitator 4.

[0028] like Figure 1 As shown, the control device includes a centrifugal dehydrator control device and a solidification stirring control device; specifically, the centrifugal dehydrator 2 control system can control the operation, shutdown, flushing and other operations of the centrifugal dehydrator 2. The solidification stirring control system is used to set the salt mud weight, curing agent ratio, stirring time and automatic / manual selection in the solidification stirrer 4, so as to realize the continuous and stable operation of the solidification stirrer 4.

[0029] In summary: turn on the power of the control cabinet, start the conveying motor 15 to drive the conveying rod 151, convey the material inside the evaporation mother liquid tank 1 to the centrifugal dehydrator 2, open the valve at the lower end of the salt mud storage barrel 3, turn on the centrifugal dehydrator 2 to dehydrate the evaporation mother liquid, and discharge the generated salt mud into the solidification agitator 4. Turn on the agitator of the solidification agitator 4, set the weight of the salt mud in the solidification mixing chamber, and when the set weight is reached, close the valve at the lower end of the salt mud storage barrel 3;

[0030] Turn on the screw conveyor to convey the curing agent to the curing agitator 4. After reaching the set weight, turn off the screw conveyor and start calculating the mixing time. After the mixing time reaches the set time, turn on the discharge screw machine, open the discharge gate valve of the curing agitator 4 to unload the salt mud, and the salt mud enters the woven bag for packaging. When the salt mud is unloaded, turn off the discharge gate valve of the curing agitator 4 in turn, stop the discharge screw machine, open the valve at the lower end of the salt mud storage barrel 3, and feed the salt mud into the curing agitator 4 for the next curing mixing cycle;

[0031] After the production is finished, the centrifugal dehydrator 2 is stopped, and the valve at the lower end of the salt mud storage barrel 3 is closed. After the solidification agitator 4 has unloaded the salt mud, its discharge valve is closed in sequence, the discharge screw machine is stopped, the agitator is turned off, the power supply of the control cabinet is turned off, and the packaged salt mud is cured for 2 to 5 days, and then transported to the landfill for special landfill.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An evaporation mother liquor processing mechanism, comprising an evaporation mother liquor tank (1), a centrifugal dehydrator (2), a solidification agitator (4), a packaging device (7) and a control device, characterized in that: A salt mud storage barrel (3) is fixedly mounted on the upper end of the solidification agitator (4); a delivery pipe (13) is fixedly mounted between the evaporation mother liquid tank (1), the centrifugal dehydrator (2) and the salt mud storage barrel (3) and the solidification agitator (4) and the packaging device (7); a curing agent storage tank (5) is fixedly mounted on the upper end of the solidification agitator (4); a delivery motor (15) is fixedly mounted on the inner walls of the evaporation mother liquid tank (1), the centrifugal dehydrator (2), the solidification agitator (4) and the curing agent storage tank (5); a delivery rod (151) is fixedly mounted on the output shaft of the delivery motor (15); one end of the delivery rod (151) is rotatably connected to the inner wall of the delivery pipe (13); a feed pipe (11) is fixedly mounted on the upper end of the evaporation mother liquid tank (1); and an electromagnetic valve (16) is provided at the connection between the salt mud storage barrel (3) and the solidification agitator (4).

2. The evaporation mother liquid processing mechanism according to claim 1, characterized in that: A drainage pipe (10) is fixedly installed on the upper side of the outer end of the evaporation mother liquid tank (1) and the lower side of the outer end of the centrifugal dehydrator (2), and one end of the drainage pipe (10) is connected to a sewage collection tank (8).

3. The evaporation mother liquid processing mechanism according to claim 1, characterized in that: A stirring motor (12) is fixedly mounted on the upper ends of the evaporation mother liquid tank (1) and the solidification stirrer (4); a stirring shaft (121) is fixedly mounted on the output shaft of the stirring motor (12); and a stirring rod (123) is fixedly connected to the outer end of the stirring shaft (121).

4. The evaporation mother liquid processing mechanism according to claim 1, characterized in that: A vibration motor is fixedly mounted on the outer end of the salt mud storage barrel (3).

5. The evaporation mother liquid processing mechanism according to claim 1, characterized in that: A second electromagnetic valve (152) is provided at the connection between the evaporation mother liquid tank (1), the centrifugal dehydrator (2), the solidification agitator (4) and the conveying rod (151), and a meter (6) is fixedly installed at the bottom of the solidification agitator (4).

6. The evaporation mother liquid processing mechanism according to claim 1, characterized in that: The control device comprises a centrifugal dehydrator control device and a solidification stirring control device.

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