A grinding aid dosing device for cement plants

Abstract

This utility model provides a grinding aid dosing device for cement plants, belonging to the technical field of grinding aid dosing equipment. It includes a liquid outlet pipe at the liquid outlet end of a storage tank, a grinding aid pump mounted on the liquid outlet pipe, a supply pipe connected to the liquid outlet end of the grinding aid pump, a stirring motor at the top of the storage tank, a stirring shaft connected to the stirring motor inside the storage tank, a connecting ring at the upper part of the stirring shaft, a connecting rod at one end of the connecting ring, a cleaning component at the bottom of the connecting rod, and a buffer tank between the grinding aid pump and the storage tank. This utility model uses the stirring motor to drive the stirring shaft to rotate, which in turn causes the connecting ring to drive the cleaning component to rotate. The cleaning component, through the rotation of the cleaning roller and cleaning plate, simultaneously stirs the grinding aid and removes residual grinding aid liquid from the inner wall of the storage tank, preventing excessive accumulation of residual grinding aid liquid on the inner wall of the storage tank and ensuring stable quality of subsequent grinding aid preparation.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding aid dosing equipment, specifically to a grinding aid dosing device for cement plants. Background Technology

[0002] In cement production, the energy consumption of the grinding process (such as ball mill grinding) accounts for as much as 30%-40%. In traditional production processes, material particles are prone to agglomeration due to electrostatic adsorption and intermolecular forces during grinding, resulting in "over-grinding" and increasing energy consumption. Furthermore, long-term high-intensity grinding will accelerate the wear of mill liners and grinding media, increasing maintenance costs.

[0003] In related technologies, in order to improve grinding efficiency and reduce energy consumption in cement production, grinding aids are usually added during the grinding process. Grinding aids adsorb onto the surface of cement particles, reducing the surface energy and adhesion between particles, reducing agglomeration, and making the material easier to disperse in the mill. This increases grinding efficiency by 10%-30% and reduces energy consumption by 15%-25%, while also reducing mill running time, power consumption, and equipment wear. In addition, more industrial waste (such as slag and fly ash) can be added to reduce clinker usage. Therefore, in order to reduce the procurement cost of grinding aids, we directly purchase grinding aid mother liquor and then add water to reconstitute it, thereby achieving the goal of saving costs.

[0004] Existing grinding aids are mostly added by first mixing water and mother liquor in a storage tank to obtain the mixed grinding aid, and then pumping the grinding aid into the grinding aid pipeline via a grinding aid pump, and then adding it to the cement conveyed by the belt in the grinding mill. However, during the preparation of the agent, residual liquid often adheres to the inner wall of the storage tank. Over time, the residual liquid on the inner wall of the storage tank is easy to accumulate and difficult to clean. If it is not cleaned in time, it will affect the quality of the subsequent grinding aid preparation. In order to solve the above problems, a grinding aid dosing device for cement plants is proposed to solve the above problems. Utility Model Content

[0005] In view of this, the present invention provides a grinding aid dosing device for cement plants. The present invention uses a stirring motor to drive the stirring shaft to rotate, which in turn causes the connecting ring to drive the cleaning component to rotate. Through the rotation of the cleaning roller and the cleaning plate on the cleaning component, the grinding aid is stirred by the stirring shaft, and the residual liquid on the inner wall of the storage tank is removed. This prevents excessive accumulation of residual liquid on the inner wall of the storage tank, making it difficult for residual liquid to remain on the inner wall of the storage tank, thus stabilizing the quality of subsequent grinding aid preparation.

[0006] To solve the above-mentioned technical problems, this utility model provides a grinding aid dosing device for cement plants, including a liquid outlet pipe provided at the liquid outlet end of a storage tank, a grinding aid pump provided on the liquid outlet pipe, a supply pipe connected to the liquid outlet end of the grinding aid pump, a stirring motor provided at the top of the storage tank, a stirring shaft connected to the stirring motor inside the storage tank, a connecting ring provided at the upper part of the stirring shaft, a connecting rod provided at one end of the connecting ring, a cleaning component provided at the bottom of the connecting rod, and a buffer tank provided between the grinding aid pump and the storage tank.

[0007] The cleaning assembly includes a positioning seat connected to a connecting rod. The positioning seat is used to connect the connecting rod to a cleaning rod. A cleaning rod is provided at the lower end of the positioning seat. The cleaning rod is used to fix multiple cleaning rollers. Multiple cleaning rollers are provided on the surface of the cleaning rod. The cleaning rollers are used to clean the inner wall of the storage tank. A cleaning plate is provided between every two cleaning rollers. The cleaning plate is used to supplement the cleaning of the inner wall that the cleaning rollers cannot reach.

[0008] A gap of 0.5 to 2.5 mm is left between the cleaning plate and the inner wall of the storage tank. This gap is designed to prevent the cleaning roller and the cleaning plate from abrading the inner wall of the storage tank.

[0009] The upper part of the storage tank is connected to a grinding aid tube, which is used to add the chemical reagent stock solution into the storage tank. The liquid inlet end of the grinding aid tube can be connected to various drug dosing tubes. A water supply pipe is set on the side adjacent to the grinding aid tube, which is used to supply clean water into the storage tank for preparing the grinding aid. Both the water supply pipe and the grinding aid tube pass through the tank wall of the storage tank.

[0010] The upper inlet of the buffer tank is connected to the outlet of the storage tank, and the lower outlet of the buffer tank is connected to the inlet of the grinding aid pump. A pressure gauge is installed on the top of the buffer tank to observe the internal pressure. An exhaust pipe is installed next to the pressure gauge to allow the buffer tank to communicate with the outside air. The exhaust pipe is also used to open the exhaust valve to release air when the internal pressure of the buffer tank is too high. An exhaust valve is installed through the top wall of the buffer tank to control the opening and closing of the exhaust pipe.

[0011] The storage tank is detachably equipped with a lid, which is used to seal the storage tank to prevent the liquid from overflowing when the grinding aid is stirred. The lid has a cavity inside and heat dissipation holes on its surface for cooling the stirring motor. The stirring motor is fixedly installed inside the lid and drives the stirring shaft to rotate, thereby driving the stirring shaft and the cleaning components to rotate.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. The stirring motor drives the stirring shaft to rotate, which in turn causes the connecting ring and connecting rod to rotate, thereby driving the cleaning component to rotate. The cleaning roller and cleaning plate on the cleaning component rotate, and while the stirring shaft stirs the grinding aid, it removes the residual liquid from the inner wall of the storage tank. This prevents excessive accumulation of residual liquid on the inner wall of the storage tank, making it difficult for residual liquid to remain on the inner wall of the storage tank, thus stabilizing the quality of subsequent grinding aid preparation.

[0014] 2. By adding a buffer tank, the pressure on the grinding aid pump is not affected by the liquid level in the storage tank, which allows for a better establishment of the relationship between rotational speed and flow rate.

[0015] 3. The pressure gauge is used to observe the internal pressure of the buffer tank. The exhaust pipe is used to connect the buffer tank with the outside air. The exhaust pipe is also used to open the exhaust valve to release air when the internal pressure of the buffer tank is too high. Attached Figure Description

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

[0017] Figure 2 This is a side sectional view of the present invention;

[0018] Figure 3 This utility model Figure 2 A magnified view of part A;

[0019] Figure 4 This is a side view of the structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the liquid supply pipe of component 103 of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 100, storage tank; 101, outlet pipe; 102, grinding aid pump; 103, supply pipe; 104, stirring motor; 105, stirring shaft; 200, connecting ring; 201, connecting rod; 202, cleaning component; 203, positioning seat; 204, cleaning rod; 205, cleaning roller; 206, cleaning plate; 300, buffer tank; 301, pressure gauge; 302, vent pipe; 303, vent valve; 400, grinding aid pipe; 401, water supply pipe; 500, tank cover; 501, cavity; 502, heat dissipation hole; 600, water-following tee; 601, nozzle orifice pipe; 602, nozzle. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-5The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] like Figure 1-5 As shown: This embodiment provides a grinding aid dosing device for cement plants, including a liquid outlet pipe 101 installed at the liquid outlet end of a storage tank 100. The liquid outlet pipe 101 is used to supply the grinding aid prepared in the storage tank 100 into the liquid outlet pipe 101. A grinding aid pump 102 is installed on the liquid outlet pipe 101. The grinding aid pump 102 is used to pressurize the grinding aid liquid in the liquid outlet pipe 101 into a supply pipe 103. The liquid outlet end of the grinding aid pump 102 is connected to the supply pipe 103. The outlet end of tank 103 is connected to a downstream tee 600 fitting, which is connected to multiple nozzle orifice pipes 601. Each nozzle orifice pipe 601 has a nozzle 602 at several orifices at its bottom to expand the spraying area. The supply pipe 103 is used to evenly spray the grinding aid onto the cement batching conveyor belt. A stirring motor 104 is installed on the top of the storage tank 100, which drives the stirring shaft 105 to rotate. The bottom is equipped with stirring blades or stirring cones. The stirring motor 104 is also used to drive the connecting ring 200 and the cleaning component 202 installed on it to rotate. The stirring shaft 105 is connected to the stirring motor 104 inside the storage tank 100. The upper part of the stirring shaft 105 is equipped with the connecting ring 200, which is used to connect the stirring shaft 105 to the cleaning component 202. The connecting ring 200 and the stirring shaft 105 are welded together. One end of the connecting ring 200 is equipped with a connecting rod 201. The connecting rod 201 and the connecting ring 200 can be welded together or fixed by bolts, preferably by welding. The bottom of the connecting rod 201 is equipped with the cleaning component 202, which is used to clean the inner wall of the storage tank 100. A buffer tank 300 is provided between the grinding aid pump 102 and the storage tank 100. The buffer tank 300 is used to ensure that the pressure on the grinding aid pump 102 is not affected by the liquid level in the storage tank 100, and can better establish the relationship between the rotation speed and the flow rate.

[0024] In use, the stirring motor 104 drives the stirring shaft 105 to rotate, which in turn causes the connecting ring 200 and the connecting rod 201 to rotate, thereby driving the cleaning component 202 to rotate. The cleaning roller 205 and the cleaning plate 206 on the cleaning component 202 rotate, and while the stirring shaft 105 stirs the grinding aid, the residual medicine on the inner wall of the storage tank 100 is removed. This prevents excessive accumulation of medicine residue on the inner wall of the storage tank 100, making it difficult for medicine residue to remain on the inner wall of the storage tank 100, thus stabilizing the quality of subsequent grinding aid preparation.

[0025] This embodiment provides a grinding aid dosing device for cement plants.

[0026] like Figure 1 , 2 As shown in Figures 3 and 4: The cleaning assembly 202 includes a positioning seat 203 connected to the connecting rod 201. The positioning seat 203 and the connecting rod 201 are welded together. The positioning seat 203 is used to connect the connecting rod 201 to the cleaning rod 204. The lower end of the positioning seat 203 is provided with the cleaning rod 204, which is made of stainless steel. The cleaning rod 204 is used to fix multiple cleaning rollers 205. Multiple cleaning rollers 205 are provided on the surface of the cleaning rod 204. The cleaning rollers 205 can be made of stainless steel and are welded to the cleaning rod 204. Next, the cleaning roller 205 is used to clean the inner wall of the storage tank 100. A cleaning plate 206 is provided between every two cleaning rollers 205. The cleaning plate 206 is a vertical trapezoid with its narrow side facing the inner wall of the storage tank 100. The cleaning plate 206 is used to supplement the cleaning of the inner wall that the cleaning roller 205 cannot reach. A gap of 0.5 to 2.5 mm is left between the narrow side of the cleaning plate 206 and the inner wall of the storage tank 100. The gap is preferably 1 to 2 mm. The gap is set to prevent the cleaning roller 205 and the cleaning plate 206 from abrading the inner wall of the storage tank 100.

[0027] Its effect is as follows: the positioning seat 203 is used to connect the connecting rod 201 to the cleaning rod 204, the cleaning roller 205 is used to clean the inner wall of the storage tank 100, and the cleaning plate 206 is used to supplement the cleaning of the inner wall that the cleaning roller 205 cannot reach, thereby cleaning most of the inner wall of the storage tank 100.

[0028] like Figure 1 , 2 As shown in Figure 4: A grinding aid tube 400 is connected to the upper part of the storage tank 100. The grinding aid tube 400 is welded to the storage tank 100. Multiple supplementary drug tubes can be welded to the liquid inlet end of the grinding aid tube 400. The grinding aid tube 400 is used to add chemical reagent stock solution into the storage tank 100. The liquid inlet end of the grinding aid tube 400 can be connected to various drug dosing tubes. A water supply pipe 401 is provided on the adjacent side of the grinding aid tube 400. The water supply pipe 401 is welded to the storage tank 100. The water supply pipe 401 is used to supply clean water into the storage tank 100 for preparing the grinding aid. Both the water supply pipe 401 and the grinding aid tube 400 pass through the tank wall of the storage tank 100.

[0029] Its effects are as follows: the grinding aid pipe 400 is used to add the chemical reagent stock solution into the storage tank 100, and the water supply pipe 401 is used to supply clean water into the storage tank 100 for preparing the grinding aid.

[0030] like Figure 1 , 2As shown in Figure 4: The upper inlet of the buffer tank 300 is connected to the outlet of the storage tank 100, and the lower outlet of the buffer tank 300 is connected to the inlet of the grinding aid pump 102. A pressure gauge 301 is installed on the top of the buffer tank 300. The sensing end of the pressure gauge 301 passes through the top wall of the buffer tank 300 and enters the buffer tank 300. The outlet pipe 101 connecting the inlet and outlet of the buffer tank 300 is sealed. The pressure gauge 301 is used to observe the internal pressure of the buffer tank 300. An exhaust pipe 3 is installed adjacent to the pressure gauge 301. 02. The exhaust pipe 302 is used to allow the buffer tank 300 to communicate with the outside air. The exhaust pipe 302 is also used to open the exhaust valve 303 to release air when the internal pressure of the buffer tank 300 is too high. One end of the exhaust pipe 302 extends into the buffer tank 300 and the other end passes through the top of the buffer tank 300 and is threadedly connected to the exhaust valve 303. The exhaust pipe 302 passes through the top wall of the buffer tank 300 and is equipped with an exhaust valve 303. The exhaust valve 303 can be electrically controlled and is used to control the opening and closing of the exhaust pipe 302.

[0031] Its effects are as follows: pressure gauge 301 is used to observe the internal pressure of buffer tank 300, exhaust pipe 302 is used to connect buffer tank 300 with the outside air, and exhaust pipe 302 is also used to open exhaust valve 303 to exhaust when the internal pressure of buffer tank 300 is too high. By increasing buffer tank 300, the pressure on grinding aid pump 102 is not affected by the liquid level of storage tank 100, and the relationship between rotation speed and flow rate can be better established.

[0032] like Figure 1 , 2 As shown in Figures 3 and 4: The storage tank 100 is detachably equipped with a tank cover 500. The bottom surface of the tank cover 500 is provided with multiple buckles for detachable connection with the storage tank 100. The top surface of the storage tank 100 is provided with multiple slots for receiving the buckles. The tank cover 500 is used to seal the storage tank 100 to prevent liquid leakage when the grinding aid is stirred. The tank cover 500 is provided with a cavity 501. The surface of the tank cover 500 is provided with heat dissipation holes 502. A dustproof screen can be added to the inside of the heat dissipation holes 502 for heat dissipation of the stirring motor 104. The stirring motor 104 is fixedly installed inside the tank cover 500. The stirring motor 104 is rotatably connected to the stirring shaft 105 through a coupling. The stirring motor 104 is used to drive the stirring shaft 105 to rotate, thereby driving the stirring shaft 105 and the cleaning component to rotate.

[0033] Its effects are as follows: the lid 500 is used to seal the storage tank 100 to prevent liquid from overflowing when the grinding aid is placed; the heat dissipation hole 502 is used to dissipate heat from the stirring motor 104, thereby stabilizing the working efficiency of the stirring motor 104; the stirring motor 104 is used to drive the stirring shaft 105 to rotate, thereby driving the stirring shaft 105 and the cleaning component to rotate; the detachable lid also facilitates subsequent maintenance of the stirring shaft 105 and the cleaning component 202.

[0034] Working principle: The stirring motor 104 drives the stirring shaft 105 to rotate, which in turn causes the connecting ring 200 and the connecting rod 201 to rotate, thereby driving the cleaning component 202 to rotate. The cleaning roller 205 and the cleaning plate 206 on the cleaning component 202 rotate, and while the stirring shaft 105 stirs the grinding aid, the residual medicine on the inner wall of the storage tank 100 is removed, thereby preventing excessive accumulation of medicine residue on the inner wall of the storage tank 100, making it difficult for medicine residue to remain on the inner wall of the storage tank 100.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A grinding aid dosing device for cement plants, comprising a discharge pipe (101) at the discharge end of a storage tank (100), a grinding aid pump (102) mounted on the discharge pipe (101), a supply pipe (103) connected to the discharge end of the grinding aid pump (102), a stirring motor (104) mounted on the top of the storage tank (100), and a stirring shaft (105) connected to the stirring motor (104) inside the storage tank (100), characterized in that: A connecting ring (200) is provided on the upper part of the stirring shaft (105), a connecting rod (201) is provided at one end of the connecting ring (200), a cleaning component (202) is provided at the bottom of the connecting rod (201), and a buffer tank (300) is provided between the liquid outlet pipe (101) and the storage tank (100).

2. The grinding aid dosing device for a cement plant according to claim 1, characterized in that: The cleaning assembly (202) includes a positioning seat (203) connected to the connecting rod (201). A cleaning rod (204) is provided at the lower end of the positioning seat (203). A plurality of cleaning rollers (205) are provided on the surface of the cleaning rod (204). A cleaning plate (206) is provided between every two cleaning rollers (205).

3. The grinding aid dosing device for a cement plant according to claim 2, characterized in that: A gap of 0.5 to 2.5 mm is maintained between the cleaning plate (206) and the inner wall of the storage tank (100).

4. The grinding aid dosing device for a cement plant according to claim 3, characterized in that: The storage tank (100) is connected to a grinding aid pipe (400) at the top, and a water supply pipe (401) is provided on the adjacent side of the grinding aid pipe (400). Both the water supply pipe (401) and the grinding aid pipe (400) pass through the tank wall of the storage tank (100).

5. The grinding aid dosing device for a cement plant according to claim 4, characterized in that: The upper inlet of the buffer tank (300) is connected to the outlet of the storage tank (100), and the lower outlet of the buffer tank (300) is connected to the inlet of the grinding aid pump (102). A pressure gauge (301) is provided on the top of the buffer tank (300), and an exhaust pipe (302) is provided on the side adjacent to the pressure gauge (301). An exhaust valve (303) is provided through the exhaust pipe (302) through the top wall of the buffer tank (300).

6. The grinding aid dosing device for a cement plant according to claim 5, characterized in that: The storage tank (100) is detachably provided with a tank cover (500), the tank cover (500) is provided with a cavity (501), the surface of the tank cover (500) is provided with heat dissipation holes (502), and the stirring motor (104) is fixedly provided inside the tank cover (500).

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