Cement grinding aid quantitative adding equipment

Abstract

The utility model discloses cement grinding aid quantitative adding equipment which comprises a liquid storage barrel, a barrel cover is installed above the liquid storage barrel, supporting legs are fixed to the lower side of the liquid storage barrel, a servo electric cylinder and a feeding barrel are installed on the outer side of the liquid storage barrel, a piston is installed at the output end of the servo electric cylinder and located in the feeding barrel, and the servo electric cylinder is connected with the feeding barrel. The lower end of the liquid storage barrel is provided with a liquid inlet non-return assembly through a liquid guide pipe, the liquid inlet non-return assembly is connected to the bottom of the feeding barrel through the liquid guide pipe, the bottom of the feeding barrel is further provided with a liquid outlet non-return assembly, and the upper end of the feeding barrel is provided with a liquid inlet control assembly used for controlling the liquid inlet amount in the feeding barrel; an observation opening is formed in the side face of the feeding barrel. According to the quantitative adding equipment for the cement grinding aid, the servo electric cylinder and the feeding barrel are arranged on the liquid storage barrel, a structure similar to the principle of an injector is formed, and the liquid cement grinding aid in the liquid storage barrel can be automatically extracted, so that the automatic adding work of the cement grinding aid is completed, and the cement grinding aid adding work is efficient and convenient.

Description

Technical Field

[0001] This utility model relates to the field of cement grinding technology, specifically to a device for quantitatively adding cement grinding aids. Background Technology

[0002] Cement grinding is the final step in cement manufacturing. Its main function is to grind cement clinker and admixtures to a suitable particle size, forming a specific particle size distribution, increasing the hydration surface area, accelerating the hydration rate, and meeting the requirements for cement paste setting and hardening. The use of liquid cement grinding aids is very common in the cement grinding process.

[0003] Currently, the addition of liquid cement grinding aids usually involves workers using specific containers to determine the dosage before adding them. However, in the cement grinding process, grinding aids are typically added multiple times. Manual addition is time-consuming and labor-intensive, and cannot efficiently and quickly complete the addition of liquid cement grinding aids. Therefore, we have proposed a cement grinding aid quantitative addition device to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative addition device for cement grinding aids, so as to solve the problem mentioned in the background art that the current process of adding and using liquid cement grinding aids is too cumbersome and inconvenient.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cement grinding aid quantitative addition device, comprising a storage tank, a tank cover installed on the top of the storage tank, a support leg fixed on the lower side of the storage tank, a servo electric cylinder and a feeding tank installed on the outer side of the storage tank, a piston installed at the output end of the servo electric cylinder and the piston located inside the feeding tank, a liquid inlet check component installed at the lower end of the storage tank through a liquid guide pipe, the liquid inlet check component connected to the bottom of the feeding tank through the liquid guide pipe, a liquid outlet check component also installed at the bottom of the feeding tank, a liquid inlet control component for controlling the amount of liquid entering the feeding tank installed at the upper end of the feeding tank, and an observation port provided on the side of the feeding tank.

[0006] Preferably, two bucket lids are symmetrically arranged, and the connecting shaft of the bucket lid is located on the diameter line of the storage tank.

[0007] Preferably, the servo cylinder and the feeding tank are fixed on the outside of the liquid storage tank, and the piston moves up and down inside the feeding tank via the servo cylinder, with a sealed contact connection between the piston and the feeding tank.

[0008] Preferably, the liquid inlet check assembly includes a liquid inlet check body, a lower cover, a liquid inlet, a liquid outlet, an upper cover, a first spring, and a first sealing block. The lower cover is installed at the lower opening of the liquid inlet check body, and the upper cover is installed at the upper opening of the liquid inlet check body. The upper and lower parts of the liquid inlet check body are each provided with a liquid inlet and a liquid outlet. A protrusion is provided inside the liquid inlet check body between the upper and lower parts of the liquid inlet and the liquid outlet. The first sealing block is installed inside the liquid inlet check body. A first spring is provided between the first sealing block and the upper cover. The first sealing block is sealed to the protrusion inside the liquid inlet check body through the first spring.

[0009] Preferably, the liquid discharge check valve assembly includes a liquid discharge check valve body, a liquid filling port, a lower cover, a second spring, and a second sealing block. The upper opening of the liquid discharge check valve body is connected to the inside of the feeding tank. The liquid discharge check valve body is provided with a liquid filling port. A lower cover is installed at the lower opening of the liquid discharge check valve body. A second sealing block is provided inside the liquid discharge check valve body. A second spring is provided between the second sealing block and the lower cover. A protrusion is provided on the upper inner side of the liquid discharge check valve body. The second sealing block is sealed to the protrusion inside the liquid discharge check valve body through the second spring.

[0010] Preferably, the liquid inlet control assembly includes a locking seat, a positioning rod, a fixing bolt, a limiting bolt, a limiting clamp head, and a contact switch. The positioning rod is connected through the locking seat, and a contact switch is installed at the lower end of the positioning rod. The locking seat has a locking groove, and the locking seat is embedded in the upper end of the feeding barrel through the locking groove. The fixing bolt is installed on the locking seat, and the fixing bolt passes through the locking seat and the feeding barrel to achieve a fixed connection between the two. The limiting bolt is installed on the locking seat, and the front end of the limiting bolt is rotatably connected to the limiting clamp head. The outer side of the limiting clamp head is engaged with the positioning rod.

[0011] Preferably, the positioning rod contains a wire, and the contact switch is electrically connected to the servo cylinder via the wire.

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

[0013] (1) The cement grinding aid quantitative addition device is equipped with a servo electric cylinder and a feeding tank on the storage tank, forming a structure similar to the principle of a syringe. It can automatically extract the liquid cement grinding aid in the storage tank, thereby completing the automatic addition of cement grinding aid, which reflects the high efficiency and convenience of cement grinding aid addition.

[0014] (2) The cement grinding aid quantitative addition equipment is equipped with a liquid inlet check component between the storage tank and the feeding tank. The feeding tank is also equipped with a liquid outlet check component. The liquid inlet check component can ensure that the liquid cement grinding aid in the storage tank can only enter the feeding tank and will not flow back. The liquid outlet check component can be closed when the feeding tank is pumping liquid and automatically open under pressure when the feeding tank is discharging liquid. In this way, the cement grinding aid can be automatically added and the automatic addition operation can be guaranteed to be stable.

[0015] (3) The cement grinding aid quantitative addition equipment is also equipped with a liquid inlet control component on the feeding tank. By adjusting the position of the contact switch on the positioning rod, the amount of liquid pumped by the piston in the feeding tank can be adjusted, thereby controlling the amount of cement grinding aid added, so as to realize quantitative addition and improve the use value of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the liquid storage tank structure of this utility model;

[0018] Figure 3 This is a side sectional view of the feeding bucket of this utility model;

[0019] Figure 4 This is a schematic diagram of the main cross-sectional structure of the feeding bucket of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the liquid inlet check valve assembly of this utility model;

[0021] Figure 6 This is a cross-sectional view of the card slot seat of this utility model.

[0022] In the diagram: 1. Storage tank; 2. Tank lid; 3. Support leg; 4. Servo electric cylinder; 5. Feeding tank; 501. Observation port; 6. Liquid inlet check assembly; 601. Liquid inlet check body; 602. Lower cover; 603. Liquid inlet; 604. Liquid outlet; 605. Upper cover; 606. First spring; 607. First sealing block; 7. Liquid outlet check assembly; 701. Liquid outlet check body; 702. Liquid filling interface; 703. Lower cover; 704. Second spring; 705. Second sealing block; 8. Piston; 9. Liquid guide tube; 10. Locking seat; 11. Positioning rod; 12. Locking groove; 13. Fixing bolt; 14. Limit bolt; 15. Limiting clamp; 16. Contact switch. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6 The present invention provides a technical solution: a cement grinding aid quantitative addition device, including a storage tank 1, a tank cover 2 installed on the top of the storage tank 1, a support leg 3 fixed on the lower side of the storage tank 1, a servo electric cylinder 4 and a feeding tank 5 installed on the outside of the storage tank 1, and a piston 8 installed at the output end of the servo electric cylinder 4, and the piston 8 is located inside the feeding tank 5.

[0025] Furthermore, two lids 2 are symmetrically arranged, and the connecting shaft of the lid 2 is located on the diameter line of the liquid storage tank 1, which facilitates the opening of the liquid storage tank 1 from multiple directions and improves the ease of use of the liquid storage tank 1.

[0026] Furthermore, the servo cylinder 4 and the feeding tank 5 are fixed on the outside of the liquid storage tank 1 to ensure stable automatic feeding operation. The piston 8 forms an up-and-down movement structure inside the feeding tank 5 through the servo cylinder 4, and the piston 8 and the feeding tank 5 are in sealed contact connection. The up-and-down movement of the piston 8 enables the feeding tank 5 to extract liquid cement grinding aid from the liquid storage tank 1.

[0027] A liquid inlet check component 6 is installed at the lower end of the storage tank 1 through a liquid guide pipe 9. The liquid inlet check component 6 is connected to the bottom of the feeding tank 5 through the liquid guide pipe 9.

[0028] Furthermore, the liquid inlet backflow preventer assembly 6 includes a liquid inlet backflow preventer body 601, a lower cover 602, a liquid inlet 603, a liquid outlet 604, an upper cover 605, a first spring 606, and a first sealing block 607. The lower cover 602 is installed at the lower opening of the liquid inlet backflow preventer body 601, and the upper cover 605 is installed at the upper opening of the liquid inlet backflow preventer body 601. The lower cover 602 and the upper cover 605 facilitate the maintenance of the internal parts of the liquid inlet backflow preventer body 601. The liquid inlet backflow preventer body 601 has a liquid inlet 603 at both the upper and lower parts. The inlet and outlet 604, the inlet 603 and the outlet 604 are connected by a protrusion in the inlet check body 601. A first sealing block 607 is installed in the inlet check body 601. A first spring 606 is provided between the first sealing block 607 and the upper cover 605. The first sealing block 607 is sealed to the protrusion in the inlet check body 601 through the first spring 606. The protrusion can block the positional movement of the first sealing block 607, thereby realizing the connection and isolation between the inlet 603 and the outlet 604.

[0029] The bottom of the feeding tank 5 is also equipped with a liquid discharge check component 7.

[0030] Furthermore, the liquid outflow check assembly 7 includes a liquid outflow check body 701, a liquid inlet 702, a lower cover 703, a second spring 704, and a second pressure sealing block 705. The upper opening of the liquid outflow check body 701 connects to the inside of the feeding tank 5. The liquid outflow check body 701 is provided with a liquid inlet 702, allowing the liquid cement grinding aid drawn from the feeding tank 5 to be discharged through the liquid inlet 702. The lower opening of the liquid outflow check body 701 is equipped with a lower cover 703 for easy maintenance. The internal components of the liquid discharge check body 701 include a second sealing block 705, a second spring 704 between the second sealing block 705 and the lower cover 703, and a protrusion on the upper inner side of the liquid discharge check body 701. The second sealing block 705 is sealed to the protrusion in the liquid discharge check body 701 through the second spring 704. The protrusion is located between the liquid filling interface 702 and the feeding tank 5 interface, so that the second sealing block 705 seals the feeding tank 5.

[0031] The upper end of the feeding tank 5 is equipped with a liquid inlet control component for controlling the amount of liquid entering the feeding tank 5. The side of the feeding tank 5 is provided with an observation port 501 for easy observation of the liquid extraction situation inside the feeding tank 5.

[0032] Furthermore, the liquid inlet control assembly includes a locking seat 10, a positioning rod 11, a fixing bolt 13, a limit bolt 14, a limit locking head 15, and a contact switch 16. The positioning rod 11 is connected through the locking seat 10 and can move on the locking seat 10. The positioning rod 11 is inserted into the feeding tank 5. The contact switch 16 is installed at the lower end of the positioning rod 11. The locking seat 10 has a locking groove 12, and the locking seat 10 is embedded in the upper end of the feeding tank 5 through the locking groove 12. The fixing bolt 13 is installed on the locking seat 10 and passes through the locking seat 10 and the feeding tank 5 to fix them together. The connection facilitates the assembly and disassembly of the positioning seat 10 and the feeding barrel 5, and ensures the stability of the positioning seat 10, thereby achieving a stable working state for the positioning rod 11. The positioning seat 10 is equipped with a limit bolt 14, and the front end of the limit bolt 14 is rotatably connected to a limit clamp 15. The outer side of the limit clamp 15 is engaged with the positioning rod 11. The limit clamp 15 is provided with a long engagement tooth, and the side of the positioning rod 11 is also provided with engaging teeth. The position of the limit clamp 15 is moved by the rotation of the limit bolt 14, making it in close contact with or separating from the positioning rod 11, thus limiting the positioning rod 11.

[0033] Furthermore, the positioning rod 11 is equipped with a wire, and the contact switch 16 is electrically connected to the servo cylinder 4 through the wire. When the servo cylinder 4 contracts and moves the piston 8 upward, the piston 8 will contact the contact switch 16, and the contact switch 16 can then control the servo cylinder 4 to extend, so that the liquid cement grinding aid is automatically discharged after reaching a certain quantity for feeding.

[0034] Working principle: When using this cement grinding aid quantitative addition device, first open the bucket cover 2, add liquid cement grinding aid into the storage tank 1, and then connect the external power supply so that the servo cylinder 4 can work normally.

[0035] The servo cylinder 4 is connected to an external control switch. When it is necessary to add cement grinding aid in a quantitative manner, the servo cylinder 4 can be started by the external switch. The servo cylinder 4 moves the piston 8 upward in the feeding tank 5. The feeding tank 5 is under negative pressure. The liquid cement grinding aid in the storage tank 1 will push the first pressure sealing block 607 in the liquid inlet backflow prevention component 6 upward, and the liquid cement grinding aid in the storage tank 1 can be drawn out through the liquid guide pipe 9.

[0036] Before extraction, the amount of cement grinding aid to be added needs to be determined. The limit bolt 14 can be rotated to separate the limit clamp 15 from the positioning rod 11, so that the position of the positioning rod 11 can be moved up and down to adjust the position of the contact switch 16. After the position of the contact switch 16 is determined, as the position of the piston 8 moves up, it will touch the contact switch 16. The contact switch 16 controls the servo electric cylinder 4 to perform reverse extension work, so that the position of the piston 8 moves down.

[0037] When the piston 8 moves down, the first sealing block 607 in the liquid inlet check assembly 6 is squeezed by the liquid above to seal more tightly, while the second sealing block 705 in the liquid outlet check assembly 7 is squeezed open by the liquid, and the cement grinding aid is discharged through the liquid inlet 702 to perform the liquid addition work.

[0038] If the equipment is adding liquid for the first time, the liquid pumping and draining process can be repeated several times to remove the air from the liquid guide pipe 9 and the liquid inlet check component 6, so as to ensure the accuracy of the addition amount.

[0039] The above describes the working process of the device, and all content not described in detail in this manual is existing technology known to those skilled in the art.

[0040] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A cement grinding aid quantitative adding device, comprising a liquid storage tank (1), characterized in that: A lid (2) is installed on the top of the liquid storage tank (1), a support leg (3) is fixed on the lower side of the liquid storage tank (1), a servo electric cylinder (4) and a feeding tank (5) are installed on the outside of the liquid storage tank (1), a piston (8) is installed at the output end of the servo electric cylinder (4), and the piston (8) is located inside the feeding tank (5). The lower end of the storage tank (1) is equipped with a liquid inlet check component (6) through a liquid guide pipe (9). The liquid inlet check component (6) is connected to the bottom of the feeding tank (5) through the liquid guide pipe (9). The bottom of the feeding tank (5) is also equipped with a liquid outlet check component (7). The upper end of the feeding tank (5) is equipped with a liquid inlet control component for controlling the amount of liquid entering the feeding tank (5), and the side of the feeding tank (5) is provided with an observation port (501).

2. The cement grinding aid dosing apparatus according to claim 1, characterized in that: Two bucket lids (2) are symmetrically arranged, and the connecting shaft of the bucket lids (2) is located on the diameter line of the liquid storage tank (1).

3. The cement grinding aid dosing apparatus according to claim 1, characterized in that: The servo cylinder (4) and the feeding tank (5) are fixed on the outside of the liquid storage tank (1), and the piston (8) forms an up-and-down moving structure in the feeding tank (5) through the servo cylinder (4), and the piston (8) and the feeding tank (5) are in a sealed contact connection.

4. The cement grinding aid dosing apparatus according to claim 1, characterized in that: The liquid inlet backflow preventer assembly (6) includes a liquid inlet backflow preventer body (601), a lower cover (602), a liquid inlet (603), a liquid outlet (604), an upper cover (605), a first spring (606), and a first sealing block (607). The lower cover (602) is installed at the lower opening of the liquid inlet backflow preventer body (601), and the upper cover (605) is installed at the upper opening of the liquid inlet backflow preventer body (601). The liquid inlet backflow preventer body (601) has liquid inlets at both its upper and lower parts. The inlet (603) and outlet (604) are provided with a protrusion in the inlet check body (601) between the upper and lower parts of the inlet (603) and outlet (604). A first pressure sealing block (607) is installed in the inlet check body (601). A first spring (606) is provided between the first pressure sealing block (607) and the upper cover (605). The first pressure sealing block (607) is sealed to the protrusion in the inlet check body (601) through the first spring (606).

5. The cement grinding aid dosing apparatus according to claim 1, characterized in that: The liquid discharge check assembly (7) includes a liquid discharge check body (701), a liquid filling port (702), a lower cover (703), a second spring (704), and a second pressure sealing block (705). The upper opening of the liquid discharge check body (701) is connected to the inside of the feeding tank (5). The liquid discharge check body (701) is provided with a liquid filling port (702). The lower opening of the liquid discharge check body (701) is equipped with a lower cover (703). The liquid discharge check body (701) is provided with a second pressure sealing block (705). A second spring (704) is provided between the second pressure sealing block (705) and the lower cover (703). A protrusion is provided on the upper inner side of the liquid discharge check body (701). The second pressure sealing block (705) is sealed to the protrusion inside the liquid discharge check body (701) through the second spring (704).

6. The cement grinding aid dosing apparatus according to claim 1, characterized in that: The liquid inlet control assembly includes a locking seat (10), a positioning rod (11), a fixing bolt (13), a limiting bolt (14), a limiting clamp head (15), and a contact switch (16). The positioning rod (11) is connected through the locking seat (10), and the contact switch (16) is installed at the lower end of the positioning rod (11). The locking seat (10) has a locking groove (12), and the locking seat (10) is embedded in the upper end of the feeding barrel (5) through the locking groove (12). The fixing bolt (13) is installed on the locking seat (10), and the fixing bolt (13) passes through the locking seat (10) and the feeding barrel (5) to achieve a fixed connection between the two. The limiting bolt (14) is installed on the locking seat (10), and the front end of the limiting bolt (14) is rotatably connected to the limiting clamp head (15). The outer side of the limiting clamp head (15) is engaged with the positioning rod (11).

7. The cement grinding aid dosing apparatus according to claim 6, characterized in that: The positioning rod (11) is equipped with a wire, and the contact switch (16) is electrically connected to the servo cylinder (4) through the wire.

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