Quantitative agent feeding structure of pulping wastewater reaction tank

Abstract

The utility model discloses a quantitative medicament feeding structure for a pulping wastewater reaction tank, which relates to the technical field of pulping waste liquid and comprises a frame body, the frame body is connected with a guide bin, a support shaft is connected with a connecting frame, a reciprocating screw rod is connected with a motor and a screw rod nut, a sleeve frame is connected with a movable block, and a protective frame II is connected with a protective frame I; a motor is started to drive a reciprocating lead screw to rotate, the reciprocating lead screw enables a lead screw nut to move upwards in a reciprocating mode, the lead screw nut firstly drives a sleeve frame to enable the movable block to move downwards to be separated from a guide bin, the reactants fall into a reaction tank, the lead screw nut moves upwards to enable the movable block to return to the original position to block the guide bin, and circulation is conducted. The rotation of the stirring device is ensured, and quantitative feeding is realized; the reciprocating lead screw and the structure on the reciprocating lead screw are connected with the movable block, so that the problems that the elasticity of the spring is reduced, the blocking cone and the guide ring are separated, and the eccentric wheel and the extension plate are always in a separated state are solved.

Description

Technical Field

[0001] This utility model relates to the field of pulping waste liquid technology, specifically to a structure for quantitative dosing of reagents in a pulping wastewater reaction tank. Background Technology

[0002] Pulping waste liquor is a significant type of wastewater generated in the papermaking industry, characterized by high pollution levels and reluctance to degrade. Therefore, it requires treatment. During treatment, a certain amount of reactants needs to be added to reduce the waste liquor's environmental impact.

[0003] Chinese patent CN220634588U discloses a quantitative feeding structure for the pretreatment of pulping waste liquid, belonging to the field of pulping waste liquid technology. The key technical points include a feeding pipe with a quantitative feeding mechanism for waste treatment located above it. The top of the quantitative feeding mechanism is equipped with a crushing component to prevent reactants from clumping. In use, a first motor is connected to an external power source, and the reactants are placed inside the cylinder. The reactants are then blocked by a blocking cone. The first motor is then started, driving an eccentric wheel to rotate. The eccentric wheel collides with an extension plate, causing the blocking cone to descend. A spring then contracts. When the eccentric wheel no longer contacts the extension plate, the spring drives the blocking cone to reset. This cycle repeats, achieving quantitative feeding. The crushing component then breaks up the clumped reactants, increasing the reaction efficiency between the reactants and the reactants.

[0004] In the aforementioned patent, quantitative feeding is achieved by using an eccentric wheel to reciprocate the compression of the spring against the plug cone. However, the spring's elasticity decreases under long-term compression, leading to the separation of the plug cone and the guide ring. Additionally, the eccentric wheel and the extension plate remain in a separate state. Utility Model Content

[0005] The purpose of this invention is to provide a structure for quantitatively dispensing reagents in a pulping wastewater reaction tank, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a quantitative dosing structure for reagents in a pulping wastewater reaction tank, comprising: a frame, a stirring device installed inside the frame, a guide chamber installed inside the frame, a support shaft horizontally fixed inside the frame below the guide chamber, a connecting frame fixed on the support shaft, a motor fixed on the lower side of the connecting frame, a reciprocating screw vertically fixed at the output end of the motor, a screw nut fitted on the outer wall of the reciprocating screw, a sleeve frame vertically fixed on the outer wall of the screw nut that slides with the support frame, the top surfaces of the support frame and the connecting frame fixed, a movable block fixed on the top surface of the sleeve frame that is located inside the guide chamber and in movable contact with the guide chamber, a second protective frame fitted on the outer side of the support frame vertically fixed on the top surface of the connecting frame, and a first protective frame fitted on the outer side of the sleeve frame and the second protective frame vertically fixed on the bottom surface of the movable block.

[0007] Furthermore, a feeding hopper is installed at the upper center of the frame, and the center of the guide bin and the center of the feeding hopper are located on the same vertical line, with the upper end of the guide bin being larger than the lower end.

[0008] Furthermore, the center of the connecting frame and the center of the guide compartment are located on the same vertical line, the cross-section of the connecting frame is inverted U-shaped, and the support shaft passes through the connecting frame.

[0009] Furthermore, the motor is located above the support shaft, and the outer walls of both ends of the reciprocating screw are fixed to the inner walls of the bearings, respectively. The outer walls of the two bearings are respectively fixedly embedded in the upper end of the connecting frame and the upper end of the support frame.

[0010] Furthermore, the sleeve frame has vertically formed strip grooves on both sides that slide against the outer wall of the support frame. The support frame has an inverted U-shaped cross section and is located outside the reciprocating lead screw. A limiting groove is vertically formed on the support frame that slides against the limiting block. The limiting block and the lead screw nut are fixed together, and the limiting block is located inside the strip groove.

[0011] Furthermore, the movable block is composed of a cuboid at the bottom and a square pyramid at the top, and the inner wall of the first protective frame and the outer wall of the second protective frame are slidably connected.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] 1. This utility model places the reactants into a frame through a feed hopper, simultaneously placing them in a guide chamber. The reactants are blocked by a movable block. The motor is then started, driving a reciprocating screw to rotate on a bearing. The reciprocating screw causes the screw nut to move downwards, which in turn moves the sleeve frame, causing the movable block to move downwards and separate from the guide chamber. The reactants then fall into the wastewater reaction tank. When the screw nut drives the limiting block to its maximum downward position within the limiting groove, the reciprocating screw causes the screw nut to move upwards, returning the movable block to its original position and blocking the guide chamber. This cycle repeats, with the motor maintaining a constant speed to ensure that the intervals at which the movable block opens the guide chamber are equal each time. Simultaneously, the stirring device continues to rotate to improve the fluidity and uniformity of the reactants, thus achieving quantitative feeding. By setting up a reciprocating screw and its upper structure connected to the movable block, the problem of springs losing elasticity under long-term compression, leading to separation of the blocking cone and guide ring, and the eccentric wheel and extension plate remaining in a separated state, is solved.

[0014] 2. In this utility model, when the movable block moves, the movable block drives the first protective frame to slide on the second protective frame. The first and second protective frames play a protective role, which can prevent the reactants from falling onto the connecting frame, sleeve frame and support frame and other structures, thereby avoiding the waste of reactants. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a top view schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the frame of this utility model;

[0018] Figure 3 This is a bottom view of the internal structure of the protective frame 1 and the protective frame 2 of this utility model;

[0019] Figure 4 This is a utility model Figure 3 Enlarged schematic diagram of the structure of region A in the middle;

[0020] Figure 5 This is a top view of the internal structure of the protective frame one and the protective frame two of this utility model;

[0021] In the diagram: 1. Frame; 2. Feed hopper; 3. Guide bin; 4. Movable block; 5. Protective frame one; 6. Protective frame two; 7. Connecting frame; 8. Support shaft; 9. Reciprocating screw; 10. Sleeve; 11. Strip groove; 12. Support frame; 13. Limiting groove; 14. Limiting block; 15. Screw nut; 16. Bearing; 17. Motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5This utility model provides a technical solution: a quantitative dosing structure for reagents in a pulping wastewater reaction tank, comprising: a frame 1, a stirring device installed inside the frame 1, and a stirring device located in a guide chamber 3 to improve the flowability and uniformity of the reactants, ensuring quantitative dosing; a guide chamber 3 installed inside the frame 1, a feed hopper 2 installed at the upper center of the frame 1, the center of the guide chamber 3 and the center of the feed hopper 2 being on the same vertical line, the upper end of the guide chamber 3 being larger than the lower end; and a support shaft 8 horizontally fixed inside the frame 1 below the guide chamber 3, the support shaft 8 serving a supporting function, the support shaft 8 being cylindrical to prevent the added reactants from remaining on the support shaft 8. A connecting frame 7 is fixed on the support shaft 8. The center of the connecting frame 7 and the center of the guide chamber 3 are on the same vertical line. The cross-section of the connecting frame 7 is inverted U-shaped. The support shaft 8 passes through the connecting frame 7. A motor 17 is fixed on the lower side of the connecting frame 7. A reciprocating screw 9 is vertically fixed at the output end of the motor 17. A screw nut 15 is fitted on the outer wall of the reciprocating screw 9. A sleeve frame 10 that slides with the support frame 12 is vertically fixed on the outer wall of the screw nut 15. The top surfaces of the support frame 12 and the connecting frame 7 are fixed. The motor 17 is located above the support shaft 8. The outer walls of both ends of the reciprocating screw 9 are fixed to the inner walls of the bearings 16. The outer walls of the two bearings 16 are respectively fixedly embedded in the upper end of the connecting frame 7 and the support frame 12. At the upper end of 2, vertical strip grooves 11 are provided on both sides of the sleeve frame 10, which slide against the outer wall of the support frame 12. The support frame 12 and the strip grooves 11 can make the sleeve frame 10 move more stably. The cross-section of the support frame 12 is inverted U-shaped. The support frame 12 is located outside the reciprocating screw 9. A limiting groove 13 is vertically provided on the support frame 12, which slides against the limiting block 14. The limiting block 14 is fixed to the screw nut 15, and the limiting block 14 is located inside the strip groove 11. The limiting block 14 and the limiting groove 13 can ensure the movement distance of the movable block 4. The top surface of the sleeve frame 10 is fixed with a movable block 4 located inside the guide chamber 3 and in contact with the guide chamber 3. The top surface of the connecting frame 7 is vertically fixed with a sleeve. On the outer side of the support frame 12, the protective frame 2 6, the bottom surface of the movable block 4 is vertically fixed with a protective frame 1 5 located outside the sleeve frame 10 and the protective frame 2 6. The movable block 4 is composed of a cuboid at the bottom and a square pyramid at the top. The inner wall of the protective frame 1 5 and the outer wall of the protective frame 2 6 are slidably connected. The protective frames 1 5 and 2 6 play a protective role for their internal structure, preventing reactants from remaining on their internal structure. When ensuring that the opening interval of the guide chamber 3 is the same, a pressure compensation system can be added. When the pressure drops due to the decrease of reactants, the pressure is automatically replenished to maintain a constant pressure at the opening of the guide chamber 3, ensuring the quantitative dispensing of the reagent.

[0024] Working principle of this utility model:

[0025] Refer to the instruction manual appendix Figure 1-5The reactants are placed into the frame 1 through the feed hopper 2. The top of the feed hopper 2 is closed using a cover plate, and the hopper is simultaneously placed in the guide chamber 3. The reactants are blocked by the movable block 4. Then, the motor 17 is started, and the motor 17 drives the reciprocating screw 9 to rotate on the bearing 16. The reciprocating screw 9 causes the screw nut 15 to move downward first. The screw nut 15 drives the sleeve 10 to move the movable block 4 downward and separate it from the guide chamber 3, so that the reactants fall into the wastewater reaction tank. When the screw nut 15 drives the limiting block 14 to move downward to its maximum extent in the limiting groove 13, the screw nut 15 moves upward under the action of the reciprocating screw 9, causing the movable block 4 to return to its original position and block the guide chamber 3. This cycle is repeated, and the motor 17 keeps moving. By keeping the rotation speed constant and ensuring that the intervals at which the movable block 4 opens the guide chamber 3 are equal each time, while ensuring that the stirring device continues to rotate to improve the fluidity and uniformity of the reactants, the effect of quantitative feeding can be achieved. When the movable block 4 moves, it drives the protective frame 1 5 to slide on the protective frame 2 6. The protective frames 1 5 and 2 6 can prevent the reactants from falling onto the connecting frame 7, the sleeve frame 10, and the support frame 12, thus playing a protective role. By setting the reciprocating screw 9 and its structure to connect with the movable block 4, the problem of the spring losing elasticity under long-term compression is solved, which leads to the separation of the blocking cone and the guide ring, and also the problem of the eccentric wheel and the extension plate always being in a separated state.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quantitative dosing structure for reagents in a pulping wastewater reaction tank, including: A frame (1) is provided, and a stirring device is installed inside the frame (1). The frame (1) is characterized by having a guide chamber (3) installed inside, a support shaft (8) horizontally fixed below the guide chamber (3) inside the frame (1), a connecting frame (7) fixed on the support shaft (8), a motor (17) fixed on the lower side of the connecting frame (7), a reciprocating screw (9) vertically fixed at the output end of the motor (17), and a screw nut (15) fitted onto the outer wall of the reciprocating screw (9). A sleeve frame (10) that slides with the support frame (12) is vertically fixed to the wall. The top surfaces of the support frame (12) and the connecting frame (7) are fixed. A movable block (4) located inside the guide chamber (3) and in contact with the guide chamber (3) is fixed to the top surface of the sleeve frame (10). A second protective frame (6) sleeved on the outside of the support frame (12) is vertically fixed to the top surface of the connecting frame (7). A first protective frame (5) sleeved on the outside of the sleeve frame (10) and the second protective frame (6) is vertically fixed to the bottom surface of the movable block (4).

2. The quantitative dosing structure for reagents in the pulping wastewater reaction tank according to claim 1, characterized in that: The upper center of the frame (1) is equipped with a feeding hopper (2), the center of the guide chamber (3) and the center of the feeding hopper (2) are located on the same vertical line, and the upper part of the guide chamber (3) is larger than the lower part.

3. The quantitative dosing structure for reagents in the pulping wastewater reaction tank according to claim 1, characterized in that: The center of the connecting frame (7) and the center of the guide compartment (3) are located on the same vertical line. The cross section of the connecting frame (7) is inverted U-shaped, and the support shaft (8) passes through the connecting frame (7).

4. The quantitative dosing structure for reagents in the pulping wastewater reaction tank according to claim 1, characterized in that: The motor (17) is located above the support shaft (8). The outer walls of both ends of the reciprocating screw (9) are fixed to the inner walls of the bearings (16), and the outer walls of the two bearings (16) are fixedly embedded in the upper end of the connecting frame (7) and the upper end of the support frame (12).

5. The quantitative dosing structure for reagents in the pulping wastewater reaction tank according to claim 1, characterized in that: The sleeve frame (10) has vertically opened strip grooves (11) on both sides that slide with the outer wall of the support frame (12). The support frame (12) has an inverted U-shaped cross section and is located outside the reciprocating screw (9). The support frame (12) has vertically opened limiting grooves (13) that slide with the limiting block (14). The limiting block (14) and the screw nut (15) are fixed, and the limiting block (14) is located inside the strip groove (11).

6. The quantitative dosing structure for reagents in the pulping wastewater reaction tank according to claim 1, characterized in that: The movable block (4) is composed of a cuboid at the bottom and a square pyramid at the top, and the inner wall of the first protective frame (5) and the outer wall of the second protective frame (6) are slidably connected.

Images