Mother liquor storage tank with heat preservation and stirring functions

Abstract

The mother liquor storage tank with the heat preservation and stirring functions comprises a tank body, a stirring shaft connected with an output shaft of a stirring motor is arranged in the tank body, the upper end of the stirring shaft is connected with a low-speed stirring frame through a speed reducer, and a stirring impeller is installed at the lower end of the stirring shaft; the upper end of the heating layer is connected with a steam inlet pipe, and the lower end of the heating layer is connected with a steam outlet pipe. The stirring impeller is driven by the stirring motor to quickly rotate, the low-speed stirring frame rotates along with the stirring impeller in the process, and the stirring rod is matched with the scraping plate to stir slurry at the edge of the tank body and convey the slurry to the center, so that all the slurry in the tank body is quickly and uniformly stirred, and high-efficiency stirring is realized.

Description

Technical Field

[0001] The utility model belongs to the field of printing and dyeing equipment, and in particular relates to a mother liquid storage tank with heat preservation and stirring functions. Background Art

[0002] Printing companies need to use a variety of color pastes of different color numbers in the process of printing cloth patterns. A large amount of mother liquor is needed in the process of color paste preparation. The mother liquor is usually composed of dry dye powder, various auxiliaries and water. The preparation and storage of mother liquor are usually carried out in a mother liquor storage tank. The capacity of the mother liquor storage tank is between 500L and 1500L according to production needs. In the existing technology, the structure of the mother liquor storage tank is relatively simple, usually including a cylindrical tank body with a stirring motor installed on the tank body and a stirring impeller provided in the tank body. The stirring motor drives the stirring impeller to rotate at high speed to stir the slurry evenly. Thereafter, the mother liquor is transported to the downstream for use through the discharge port and infusion pump below. The stirring efficiency of the existing mother liquor storage tank needs to be improved. In addition, it does not have a heat preservation function. When the working environment temperature is low, the mother liquor cannot reach the optimal use state. Summary of the Invention

[0003] The utility model aims to solve the technical problems in the prior art of low stirring efficiency and lack of heat preservation function of mother liquid storage tanks, and proposes a mother liquid storage tank with a high-efficiency stirring device and a heat preservation function.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A mother liquid storage tank with heat preservation and stirring functions, comprising a tank body, an upper cover and a stirring motor installed on the upper end of the tank body, a water inlet pipe connected to the upper cover, a stirring shaft connected to the output shaft of the stirring motor provided in the tank body, the upper end of the stirring shaft connected to a low-speed stirring frame via a reducer, and a stirring impeller installed at the lower end of the stirring shaft;

[0006] The side walls and bottom wall of the tank body include an outer layer, a middle layer and an inner layer from the outside to the inside. An insulation layer is filled between the outer layer and the middle layer. A heating layer is formed between the middle layer and the inner layer. The upper end of the heating layer is connected to the steam inlet pipe, and the lower end of the heating layer is connected to the steam outlet pipe.

[0007] Preferably, the stirring frame comprises an upper stirring rod, a lower stirring rod, a left stirring rod and a right stirring rod, and scrapers are installed on the lower stirring rod, the left stirring rod and the right stirring rod.

[0008] Preferably, the angle between the scraper plane and the plane where the stirring frame is located is 10-30 degrees.

[0009] Preferably, the stirring impeller includes an impeller surface, and the edge of the impeller surface is provided with upper blades extending upward and lower blades extending downward, and the upper blades and the lower blades are arranged alternately.

[0010] Preferably, the upper blades and the lower blades are square or triangular.

[0011] Preferably, the bottom wall of the tank body is conical, and a discharge port is provided at the lowest point of the bottom wall.

[0012] Preferably, the discharge port is connected to a discharge pump via a discharge pipe, and the outlet of the discharge pump is connected to a feed pipe via a filter.

[0013] Preferably, a manual ball valve and a pneumatic ball valve are installed on the feed pipe.

[0014] Preferably, a PLC controller is further included, a temperature sensor and a liquid level gauge electrically connected to the PLC controller are installed in the tank body, and solenoid valves electrically connected to the PLC controller are installed on the steam inlet pipe and the steam outlet pipe.

[0015] Preferably, a feeding platform is further included, which is located in the middle of the tank body, and a reinforcing rib is welded between the feeding platform and the tank body.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. The mother liquor storage tank described in the present invention is provided with a stirring mechanism, which includes a low-speed stirring frame and a high-speed stirring impeller. The stirring impeller rotates rapidly under the drive of the stirring motor. During this process, the low-speed stirring frame rotates accordingly. The stirring rod cooperates with the scraper to stir the slurry at the edge of the tank body and transport it to the center, so that all the slurry in the tank body can be quickly and evenly stirred, achieving high-efficiency stirring.

[0018] 2. The tank body is provided with a heat preservation layer and a steam heating layer, and cooperates with a temperature sensor and a controller to realize internal constant temperature heating.

[0019] 3. The bottom wall of the tank is conical, and a discharge port is provided at the lowest point of the bottom wall, which can quickly discharge all the mother liquor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the mother liquid storage tank of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the mother liquid storage tank of the utility model;

[0022] Figure 3 This is a structural diagram of the high-speed stirring impeller of the mother liquid storage tank of the utility model;

[0023] In the above figures: 1. Tank body; 11. Upper cover; 12. Side wall; 13. Bottom wall; 14. Water inlet pipe; 15. Insulation layer; 16. Heating layer; 161. Steam inlet pipe; 162. Steam outlet pipe; 17. Discharge port; 2. Stirring mechanism; 21. Stirring motor; 211. Bracket; 22. Stirring shaft; 23. Low-speed stirring frame; 231. Upper stirring rod; 232. Lower stirring rod; 233. Left stirring rod; 234. Right stirring rod; 235. Scraper; 24. High-speed stirring impeller; 241. Impeller surface; 242. Upper blade; 243. Lower blade; 25. Reducer; 3. Liquid level gauge; 4. Discharge pump; 5. Filter; 6. Feed pipe; 7. Manual ball valve; 8. Pneumatic ball valve; 9. Feeding platform. DETAILED DESCRIPTION

[0024] In order to better understand the present invention, the following is a detailed description with reference to the accompanying drawings and embodiments.

[0025] Example: Figure 1 、 Figure 2 As shown, a mother liquid storage tank with heat preservation and stirring functions includes a tank body 1, which is composed of an upper cover 11, side walls 12, and a bottom wall 13. The upper cover 11 is divided into a front and a rear portion. The front portion can be opened to facilitate the addition of color paste powder and additives into the tank body 1. The upper cover 11 is also connected to a water inlet pipe 14, which is equipped with a pneumatic valve. Clean water can be delivered to the tank body 1 through the water inlet pipe 14.

[0026] To quickly and evenly mix the color paste powder, additives, and clean water, the mother liquid storage tank is equipped with a stirring mechanism 2, which includes a stirring motor 21, a stirring shaft 22, a low-speed stirring frame 23, and a high-speed stirring impeller 24. The stirring motor 21 is suspended above the tank body 1 via a bracket 211. The output shaft of the stirring motor 21 is connected to the stirring shaft 22 via a coupling, allowing the stirring shaft 22 to extend vertically into the tank body 1. The upper end of the stirring shaft 22 is connected to the low-speed stirring frame 23 via a speed reducer 25, and the lower end of the stirring shaft 22 is equipped with a high-speed stirring impeller 24. The stirring frame includes an upper stirring rod 231, a lower stirring rod 232, a left stirring rod 233, and a right stirring rod 234. The upper stirring rod 231 is mounted on the upper portion of the stirring shaft 22 via a speed reducer 25. At the same time, scrapers 235 are bolted to the lower stirring rod 232, the left stirring rod 233, and the right stirring rod 234. The scrapers 235 are made of wear-resistant plastic and can be replaced when worn. The scraper 235 has a square upper end and an arc lower end, and the scraper 235 plane forms a certain angle with the plane where the stirring frame is located, preferably an angle of 10-30 degrees. Figure 3As shown, the stirring impeller includes a horizontally arranged circular impeller surface 241. The edge of the impeller surface 241 is provided with an upper blade 242 extending upward and a lower blade 243 extending downward. The upper blades 242 and the lower blades 243 are arranged alternately. The upper blades 242 and the lower blades 243 are square or triangular. The impeller of this shape rotates rapidly under the drive of the stirring motor 21, which can drive the liquid to form a vortex, which is suitable for stirring the mother liquid slurry. During this process, the low-speed stirring frame 23 rotates accordingly, and the stirring rod cooperates with the scraper 235 to stir the slurry at the edge of the tank body 1 and transport it to the center, so that all the slurry in the tank body 1 is quickly stirred and evenly mixed, improving the stirring efficiency.

[0027] After the mother liquor is stirred and stored in the mother liquor storage tank, it is necessary to maintain the stirring state and maintain a suitable temperature to prevent precipitation and failure. In this embodiment, the side wall 12 and the bottom wall 13 of the tank body 1 are both set as a three-layer structure, specifically from the outside to the inside, the outer layer, the middle layer and the inner layer. The outer layer and the middle layer are filled with an insulation layer 15. The insulation layer 15 can greatly reduce the internal heat loss and play a good insulation role. A heating layer 16 is formed between the middle layer and the inner layer. The upper end of the heating layer 16 is connected to the steam inlet pipe 161, and the lower end of the heating layer 16 is connected to the steam outlet pipe 162. By supplying steam into the heating layer 16, the slurry can be quickly heated. To facilitate temperature control, solenoid valves are installed on the steam inlet pipe and the steam outlet pipe. At the same time, a temperature sensor is installed in the tank body 1 to detect the actual temperature of the internal slurry. The solenoid valve and the temperature sensor are both electrically connected to the PLC controller. The PLC controller further controls the steam supply amount based on the slurry temperature feedback from the temperature sensor, thereby achieving constant temperature heating.

[0028] A liquid level gauge 3 is also installed within the tank 1, and an audible and visual alarm is installed above the tank 1. Both the liquid level gauge 3 and the audible and visual alarm are electrically connected to the PLC controller. The liquid level gauge 3 transmits the liquid level value to the PLC controller in real time. When the liquid level signal received by the controller falls below a preset value, the audible and visual alarm activates to remind staff to replenish the liquid promptly. When the liquid level signal received by the controller exceeds the preset value, the PLC controller controls the pneumatic valve on the water inlet pipe 14 to close, automatically stopping water injection.

[0029] For ordinary mother liquid storage tanks, the bottom of the tank is flat. When the mother liquid needs to be emptied, it is often not drained cleanly, and part of the mother liquid is wasted. In this embodiment, the bottom wall 13 of the tank body 1 is conical, and a discharge port 17 is provided at the lowest point of the bottom wall 13, which can quickly discharge all the mother liquid. The discharge port 17 is connected to the discharge pump 4 through a discharge pipe, and the outlet of the discharge pump 4 is connected to the feed pipe 6 through a filter 5. A manual ball valve 7 and a pneumatic ball valve 8 are installed on the feed pipe 6. During the liquid discharge process, the filter 5 can filter out impurities. The discharge pump 4 and the pneumatic ball valve 8 are connected to the PLC controller to realize automatic discharge. The manual ball valve 7 can close the pipeline during maintenance to prevent leakage.

[0030] Since the tank body 1 is relatively high, in order to facilitate feeding, most of the tank body 1 is sunk into the ground and a feeding platform 9 is set in the middle of the tank body 1. Reinforcing ribs are welded between the feeding platform 9 and the tank body 1. When color paste powder and additives need to be added into the tank body 1, just stand on the feeding platform 9.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A mother liquid storage tank with heat preservation and stirring functions, characterized by: The invention comprises a tank body and a stirring motor, wherein an upper cover is installed on the upper end of the tank body, and a water inlet pipe is connected to the upper cover. A stirring shaft connected to the output shaft of the stirring motor is provided in the tank body, and the upper end of the stirring shaft is connected to the low-speed stirring frame through a reducer, and a stirring impeller is installed at the lower end of the stirring shaft; The side walls and bottom wall of the tank body include an outer layer, a middle layer and an inner layer from the outside to the inside. An insulation layer is filled between the outer layer and the middle layer. A heating layer is formed between the middle layer and the inner layer. The upper end of the heating layer is connected to the steam inlet pipe, and the lower end of the heating layer is connected to the steam outlet pipe.

2. The mother liquid storage tank with heat preservation and stirring functions according to claim 1, characterized in that: The stirring frame comprises an upper stirring rod, a lower stirring rod, a left stirring rod and a right stirring rod, and scrapers are installed on the lower stirring rod, the left stirring rod and the right stirring rod.

3. The mother liquid storage tank with heat preservation and stirring functions according to claim 2, characterized in that: The angle between the scraper plane and the stirring frame plane is 10-30 degrees.

4. The mother liquid storage tank with heat preservation and stirring functions according to claim 1, characterized in that: The stirring impeller comprises an impeller surface, and an edge of the impeller surface is provided with upper blades extending upward and lower blades extending downward, and the upper blades and the lower blades are arranged alternately.

5. The mother liquid storage tank with heat preservation and stirring functions according to claim 4, characterized in that: The upper blade and the lower blade are square or triangular.

6. The mother liquid storage tank with heat preservation and stirring functions according to claim 1, characterized in that: The bottom wall of the tank body is conical, and a discharge port is provided at the lowest point of the bottom wall.

7. The mother liquid storage tank with heat preservation and stirring functions according to claim 6, characterized in that: The discharge port is connected to a discharge pump via a discharge pipe, and the outlet of the discharge pump is connected to a feed pipe via a filter.

8. The mother liquid storage tank with heat preservation and stirring functions according to claim 7, characterized in that: A manual ball valve and a pneumatic ball valve are installed on the material conveying pipe.

9. The mother liquid storage tank with heat preservation and stirring functions according to claim 1, characterized in that: It also includes a PLC controller. A temperature sensor and a liquid level meter electrically connected to the PLC controller are installed in the tank body. Solenoid valves electrically connected to the PLC controller are installed on the steam inlet pipe and the steam outlet pipe.

10. The mother liquid storage tank with heat preservation and stirring functions according to claim 1, characterized in that: It also includes a feeding platform, which is located in the middle of the tank body, and a reinforcing rib is welded between the feeding platform and the tank body.

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