Calcium hydroxide powder conveying device

Abstract

The utility model relates to the technical field of calcium hydroxide powder conveying, in particular to a calcium hydroxide powder conveying device which comprises a tank body and a cover body, clamping seats which are symmetrically arranged are fixedly installed in the tank body, moving blocks are placed in the clamping seats, and a discharging barrel is integrally connected between the two moving blocks. And discharging holes which are uniformly distributed and are used for discharging calcium hydroxide powder are formed in the discharging barrel. According to the calcium hydroxide powder spraying device, the discharging barrel is installed in the tank body, the discharging holes are evenly distributed in the discharging barrel, then the spraying range of calcium hydroxide powder is enlarged, and the conveying efficiency of the calcium hydroxide powder is further improved; the air flow is conveyed into the exposure pipe through the pressure pump, and when the pressure intensity of the air flow in the exposure pipe exceeds a specified threshold value, high air pressure quickly enters the discharging barrel to extrude the calcium hydroxide powder, so that the laying area of the calcium hydroxide powder is further increased, and the condition that the filter cloth is blocked by the chlorinated slag slurry can be effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of calcium hydroxide powder conveying technology, and in particular to a calcium hydroxide powder conveying device. Background Technology

[0002] Currently, the mature titanium dioxide production process in China mainly involves the following methods for treating chlorinated slurry: First, select calcium hydroxide solid, add an appropriate amount of water according to the required concentration of the process, and prepare lime milk; then add the lime milk to the chlorinated slurry for a metathesis reaction to generate metal hydroxide precipitate and calcium chloride solution; send it to a diaphragm filter press for pressure filtration to achieve solid-liquid separation; the precipitate is centrally stockpiled or transported for disposal; the calcium chloride solution undergoes a fermentation process and a spray granulation and drying process to obtain calcium chloride solid, which is used as a de-icing agent.

[0003] During the treatment of chlorinated slurry, calcium hydroxide powder is transported into the slurry through pipelines. However, the spraying area of ​​the pipelines is limited, resulting in a small contact area between the chlorinated slurry and the calcium hydroxide powder. This leads to uneven dispersion of the calcium hydroxide powder and prolongs the reaction time between the calcium hydroxide powder and the chlorinated slurry. At the same time, the subsequent reaction between the calcium hydroxide powder and the chlorinated slurry is not sufficient, resulting in high viscosity of the lime milk particles. This makes the lime milk easily clog the filter cloth when it is transported to the diaphragm filter press, further affecting the processing efficiency of the chlorinated slurry. Utility Model Content

[0004] The purpose of this invention is to solve the problem of small contact area between calcium hydroxide powder and chlorinated slurry in the prior art, and to propose a calcium hydroxide powder conveying device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A calcium hydroxide powder conveying device includes a tank and a cover. Symmetrically arranged brackets are fixedly installed inside the tank. Movable blocks are placed inside the brackets, and a feeding cylinder is integrally connected between the two movable blocks. The feeding cylinder has uniformly distributed feeding holes for discharging calcium hydroxide powder. A first vertical plate and a second vertical plate are fixedly installed at both ends of the feeding cylinder. A conveying pipe connected to the feeding cylinder and discharging calcium hydroxide powder is installed on the second vertical plate. An exposure pipe connected to the feeding cylinder and pressurizing the calcium hydroxide powder is installed on the first vertical plate.

[0007] Preferably, the card holder has a concave structure, and the feed cylinder is horizontally disposed between the two card holders.

[0008] Preferably, the card holder is slidably fitted with positioning rods that are symmetrically arranged and extend into the moving block, and a spring is welded between the positioning rods and the card holder. The moving block has a slot for storing the positioning rods.

[0009] Preferably, the positioning rod is horizontally positioned on both sides of the moving block, and a traction rod connected to the positioning rod is slidably sleeved inside the card seat, with the spring sleeved on the traction rod.

[0010] Preferably, a pressure pump connected to the exposure tube is installed on the upright plate, a pressure valve for monitoring air pressure is installed on the exposure tube, and a valve that cooperates with the feed cylinder is installed on the exposure tube.

[0011] Preferably, a one-way valve for controlling the flow direction is installed inside the exposure tube, and a controller for electrically connecting to the pressure valve and opening and closing the valve is installed on the mounting bracket.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. This utility model installs a feeding cylinder inside the tank, which can collect calcium hydroxide powder in a concentrated manner. The feeding cylinder has evenly distributed feeding holes, thereby increasing the spraying range of calcium hydroxide powder and enabling the calcium hydroxide powder to be sprayed quickly onto the chlorinated slurry, thus further improving the efficiency of calcium hydroxide powder conveying.

[0014] 2. This utility model uses a pressure pump to deliver airflow into the exposure tube. When the airflow pressure in the exposure tube exceeds the specified threshold, the high-pressure air quickly enters the feeding cylinder to compress the calcium hydroxide powder, further increasing the coverage area of ​​the calcium hydroxide powder and effectively preventing the chlorinated slurry from clogging the filter cloth. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a calcium hydroxide powder conveying device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the feeding cylinder of a calcium hydroxide powder conveying device proposed in this utility model;

[0017] Figure 3 This is a cross-sectional view of the feed cylinder of a calcium hydroxide powder conveying device proposed in this utility model;

[0018] Figure 4 This is a cross-sectional view of the mounting bracket of a calcium hydroxide powder conveying device proposed in this utility model.

[0019] In the diagram: 1. Tank body; 2. Cover; 3. Card holder; 4. Moving block; 5. Feeding cylinder; 6. Feeding hole; 7. Vertical plate one; 8. Vertical plate two; 9. Pressure pump; 10. Exposure tube; 11. Valve; 12. Pressure valve; 13. Controller; 14. Conveying pipe; 15. Positioning rod; 16. Spring; 17. Traction rod; 18. Card slot. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A calcium hydroxide powder conveying device includes a tank 1 and a cover 2. Calcium hydroxide powder enters the feed cylinder 5 through compressed air and reacts with the chlorinated slurry in the tank 1. After the reaction, it enters the feed tank through the guide cylinder and is then pumped to the filter press for processing.

[0022] A symmetrically arranged bracket 3 is fixedly installed inside the tank body 1. A movable block 4 is placed inside the bracket 3, and a feeding cylinder 5 is integrally connected between the two movable blocks 4. The bracket 3 has a concave structure, and the feeding cylinder 5 is horizontally arranged between the two brackets 3. The movable blocks 4 can be lifted from both sides through the two brackets 3, thereby ensuring the stability of the feeding cylinder 5 after installation.

[0023] The card holder 3 is slidably fitted with positioning rods 15 that extend into the moving block 4. A spring 16 is welded between the positioning rod 15 and the card holder 3. The moving block 4 has a slot 18 for storing the positioning rod 15. The spring 16 resets the positioning rod 15. When the traction rod 17 is unloaded, the spring 16 can drive the positioning rod 15 back to its initial position.

[0024] Positioning rod 15 is horizontally positioned on both sides of moving block 4. A traction rod 17 connected to positioning rod 15 is slidably sleeved inside the mounting base 3. Spring 16 is sleeved on traction rod 17. By pressing moving block 4, moving block 4 extends into mounting base 3 and abuts against positioning rod 15. When positioning rod 15 aligns with mounting slot 18, positioning rod 15 can extend into moving block 4, thus enabling faster installation of feeding cylinder 5. Feeding cylinder 5 has evenly distributed feeding holes 6 for discharging calcium hydroxide powder, according to the instruction manual. Figure 3 As shown, by opening uniformly distributed feeding holes 6 on the feeding cylinder 5, the feeding holes 6 can uniformly convey calcium hydroxide powder, thereby increasing the contact area between calcium hydroxide powder and chlorinated slurry.

[0025] Vertical plate 7 and vertical plate 8 are fixedly installed at both ends of the feeding cylinder 5. A conveying pipe 14 connected to the feeding cylinder 5 and feeding calcium hydroxide powder is installed on vertical plate 28. An exposure pipe 10 connected to the feeding cylinder 5 and pressurizing calcium hydroxide powder is installed on vertical plate 7.

[0026] A pressure pump 9 connected to the exposure tube 10 is installed on the upright plate 7. A pressure valve 12 for monitoring air pressure is installed on the exposure tube 10. A valve 11 that cooperates with the feed cylinder 5 is installed on the exposure tube 10. A one-way valve for controlling the flow direction is installed inside the exposure tube 10. A controller 13 for electrically connecting to the pressure valve 12 and opening and closing the valve 11 is installed on the card holder 3.

[0027] After the pressurizing pump 9 is powered on, it delivers airflow to the exposure tube 10. The pressure valve 12 can monitor the airflow pressure in the exposure tube 10. When the pressure exceeds the specified threshold, the controller 13 sends an opening signal to the valve 11. After the valve 11 is opened, the airflow quickly enters the feeding cylinder 5. The calcium hydroxide powder in the feeding cylinder 5 is pressurized and quickly discharged from the feeding hole 6 into the chlorinated slurry. Through the large-scale pushing of the calcium oxide powder, the contact area between the calcium hydroxide and the chlorinated slurry is increased, allowing them to react fully. The resulting precipitate particles are evenly distributed, preventing the filter cloth from clogging when the lime slurry flows.

[0028] It should be noted that the specific models and specifications of the pressurization pump 9, pressure valve 12, valve 11, and controller 13 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technology in this field, so they will not be elaborated here.

[0029] The functional principle of this utility model can be explained through the following operation methods:

[0030] The chlorinated slurry is transported into tank 1;

[0031] Pull out the traction rod 17, causing the traction rod 17 to drive the positioning rod 15 to slide within the card seat 3, and compress the spring 16.

[0032] Place the movable block 4 on the two card seats 3, release the traction of the traction rod 17, and under the action of the spring 16, the positioning rod 15 extends into the card slot 18 in the movable block 4, and seals the tank 1 through the cover body 2;

[0033] The conveying pipe 14 conveys calcium hydroxide powder into the feeding cylinder 5;

[0034] The pressurization pump 9 is turned on, and the airflow is input into the exposure tube 10. The pressure valve 12 can monitor the air pressure. When the air pressure exceeds the specified threshold, it immediately sends a signal to the controller 13. The controller 13 sends an opening command to the valve 11. The valve 11 opens, so that the air pressure is concentrated and delivered into the feeding cylinder 5, which pressurizes the calcium hydroxide powder in the feeding cylinder 5 and thus quickly discharges it into the chlorination slurry from multiple feeding holes 6. The chlorination slurry comes into contact with the calcium hydroxide powder to form lime milk, which is then discharged after sedimentation.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A calcium hydroxide powder conveying device, comprising a tank (1) and a cover (2), characterized in that, The tank (1) is fixedly installed with symmetrically arranged card seats (3). The card seats (3) contain movable blocks (4), and the two movable blocks (4) are integrally connected with a feeding cylinder (5). The feeding cylinder (5) has uniformly distributed feeding holes (6) for discharging calcium hydroxide powder. The feeding cylinder (5) is fixedly installed with a first vertical plate (7) and a second vertical plate (8) at both ends. The second vertical plate (8) is equipped with a conveying pipe (14) that communicates with the feeding cylinder (5) and discharges calcium hydroxide powder. The first vertical plate (7) is equipped with an exposure pipe (10) that communicates with the feeding cylinder (5) and pressurizes the calcium hydroxide powder.

2. The calcium hydroxide powder conveying device according to claim 1, characterized in that, The card holder (3) has a concave structure, and the feed cylinder (5) is horizontally arranged between the two card holders (3).

3. The calcium hydroxide powder conveying device according to claim 1, characterized in that, The card holder (3) is slidably fitted with positioning rods (15) that are symmetrically arranged and extend into the moving block (4). A spring (16) is welded between the positioning rod (15) and the card holder (3). The moving block (4) has a slot (18) for storing the positioning rod (15).

4. A calcium hydroxide powder conveying device according to claim 3, characterized in that, The positioning rod (15) is horizontally positioned on both sides of the moving block (4). The traction rod (17) connected to the positioning rod (15) is slidably sleeved in the card seat (3). The spring (16) is sleeved on the traction rod (17).

5. A calcium hydroxide powder conveying device according to claim 1, characterized in that, A pressure pump (9) connected to the exposure tube (10) is installed on the upright plate (7). A pressure valve (12) for monitoring air pressure is installed on the exposure tube (10). A valve (11) that cooperates with the feed cylinder (5) is installed on the exposure tube (10).

6. A calcium hydroxide powder conveying device according to claim 5, characterized in that, The exposure tube (10) is equipped with a one-way valve for controlling the flow direction, and the card holder (3) is equipped with a controller (13) for electrically connecting to the pressure valve (12) and opening and closing the valve (11).

Images