Anti-settling storage tank for grinding aid activator

Abstract

This utility model discloses a storage tank for a grinding aid activator to prevent sedimentation, including a tank body and a stirring mechanism. The tank body is horizontally fixed on the frame, and the stirring mechanism is horizontally positioned inside the tank, with one end extending out of the tank body and connected to a geared motor. A tank cover is detachably connected to one end of the tank body, and the tank cover has a large inspection door. A feed inlet is located on the upper side of one side of the tank body, and a discharge outlet is located on the lower side of one side. The inner wall of the tank body is coated with stainless steel or epoxy resin. By horizontally mounting the tank body on the frame, the height of the tank is reduced, shortening the particle settling distance. Combined with the slope of the tank bottom, this promotes material flow, reduces the caking of inorganic salts such as sulfates, and effectively inhibits sedimentation and stratification. Furthermore, the horizontal design allows personnel to directly enter the tank through the end (unlike vertical designs which require scaffolding or ladders), shortening maintenance time. Additionally, the horizontal design, with the inlet and outlet located on the side, minimizes the drop and reduces the transport resistance of viscous components such as polycarboxylic acid.

Description

Technical Field

[0001] This utility model belongs to the field of storage tank technology, and in particular relates to a storage tank for preventing sedimentation of grinding aid activator. Background Technology

[0002] Solid waste gel grinding aids and activators are produced by alkali activation (such as NaOH) or acid activation to dissolve the silicon and aluminum components in solid waste, generating cementing substances such as calcium silicate gel. This results in a synergistic effect between polyol amines and sulfates / aluminates, significantly improving early strength. These composite additives are specifically designed to enhance the grinding and cementing activity of industrial solid waste (such as slag, fly ash, and coal gangue). By synergistically optimizing grinding efficiency and material activity, they achieve high-value utilization of solid waste resources. Solid waste-based cementitious materials achieve a 7-day strength of 29.3 MPa and a 28-day strength of 37.5 MPa (70% solid waste content). Increasing the solid waste content in concrete by 40%-60% reduces cement usage and lowers costs by 15%-30%.

[0003] Solid waste gel grinding aids and activators are prone to sedimentation and stratification due to the high density of inorganic salts such as sulfates (e.g., sodium sulfate) and aluminates in their storage. Furthermore, the polycarboxylic acid polymer chains easily entangle and form flocs, accelerating gelation and precipitation. If precipitation occurs, it reduces the concentration of effective components in the upper liquid, leading to an imbalance between grinding aid and activation functions during use, resulting in a 15%-20% decrease in grinding efficiency. Additionally, the high concentration at the bottom may trigger localized over-reactions, forming caking lumps. Moreover, the solid waste activator (e.g., aluminum sulfate) becomes ineffective after precipitation, leading to incomplete slag hydration and a strength loss of up to 18% after 28 days. Deactivation of polycarboxylic acid dispersants exacerbates micro-powder agglomeration, reducing the specific surface area compliance rate.

[0004] Therefore, sedimentation must be carefully controlled during the storage of solid waste gel grinding aids. Currently, anti-sedimentation storage tanks are required for storing solid waste gel grinding aids. Regarding anti-sedimentation storage tanks, a search reveals a utility model patent in China with publication number CN219602156U, which discloses an intelligent liquid cement grinding aid storage tank. This tank mainly includes an outer shell and an inner liner, with a circulation pipe between them. A heating tank is located at the bottom of the inner liner, with a heating rod mounted on it. A discharge pipe is located on one side of the inner liner. A stirring mechanism is installed inside the inner liner, with its upper end connected to a motor.

[0005] In the actual implementation of storage tanks with similar technical solutions to the above-mentioned technologies, it has been found that there are areas for improvement: the storage tanks are vertically designed and relatively tall, with the liquid level reaching 80%–90%, resulting in a large particle sedimentation distance and failing to effectively suppress sedimentation and stratification. In addition, the relatively high height of the vertical design makes it inconvenient for personnel to enter the tank from the top for maintenance. Utility Model Content

[0006] In view of the shortcomings and defects in the existing technology, the purpose of this utility model is to provide a storage tank for preventing sedimentation of grinding aid activator, which solves the problem that the existing solid waste gel grinding aid activator storage tank has a relatively high vertical design, which makes it inconvenient for workers to enter the tank from the top end for maintenance.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a storage tank for preventing sedimentation of grinding aid activator, comprising a tank body and a stirring mechanism, including a frame, wherein the tank body is horizontally fixed on the frame, the stirring mechanism is horizontally disposed in the tank body, and one end of the stirring mechanism extends out of the tank body and is connected to a geared motor; a tank cover is detachably connected to one end of the tank body, the tank cover is provided with a large inspection door that can be opened, a feed inlet is provided on the upper side of one side of the tank body, and a discharge outlet is provided on the lower side of one side of the tank body; the inner wall of the tank body is provided with a stainless steel or epoxy resin coating; a densitometer with a probe that can extend into the tank body is provided on the tank cover or the tank body.

[0008] As a further improvement of this utility model, the bottom of the frame is provided with brake casters.

[0009] As a further improvement of this utility model, a small inspection door is provided on one side of the tank.

[0010] As a further improvement of this utility model, the tank body and the tank cover are detachably connected by bolts.

[0011] As a further improvement of this utility model, a baffle plate is provided on the inner wall of the tank below the feed inlet, and the baffle plate is inclined upward.

[0012] As a further improvement of this utility model, the tank body is composed of an outer shell and an inner liner, and a heat insulation layer is provided between the outer shell and the inner liner.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1. By horizontally mounting the tank on the frame, the tank height is reduced, shortening the particle settling distance. Combined with the tank bottom slope, this promotes material flow, reduces the caking of inorganic salts such as sulfates, and effectively inhibits sedimentation and stratification. Furthermore, the horizontal configuration allows personnel to directly enter the tank from the end (unlike vertical configurations which require scaffolding or ladders), shortening maintenance time. Additionally, the horizontal configuration, with the inlet and outlet located on the side, minimizes the drop and reduces the conveying resistance of viscous components such as polycarboxylic acids.

[0015] By applying a stainless steel or epoxy resin coating to the inner wall of the tank, corrosion can be prevented and acid or alkaline corrosion can be avoided.

[0016] By installing a large inspection door on the tank cover, it is possible to enter the tank for maintenance.

[0017] 2. By setting up a densitometer, the density of the solid waste gel grinding aid activator can be detected, and the concentration of suspended solids can be monitored in real time, thereby providing a certain early warning of the sedimentation state of the solid waste gel grinding aid activator.

[0018] 3. Braked casters are installed at the bottom of the frame to facilitate movement and relocation.

[0019] 4. By installing baffles on the inner wall of the tank, the solid waste gel grinding aid activator entering the tank from the feed inlet can be encouraged to flow towards the center, increasing turbulence and improving the anti-sedimentation effect.

[0020] 5. By setting the tank body as an outer shell and an inner liner, and setting a heat insulation layer between the outer shell and the inner liner, the heat insulation layer can prevent the tank body from overheating or cooling, thus avoiding the problems of crystallization caused by excessively low temperature or decomposition caused by excessively high temperature of the solid waste gel grinding aid activator. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the tank.

[0024] In the diagram: 1. Tank body; 101. Outer shell; 102. Inner liner; 2. Stirring mechanism; 201. Stirring shaft; 202. Stirring blade; 3. Gear motor; 4. Tank cover; 5. Large inspection door; 6. Feed inlet; 7. Discharge outlet; 8. Densitometer; 9. Small inspection door; 10. Baffle plate; 11. Frame. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 and attached Figure 2 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0026] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0027] This utility model discloses a storage tank for preventing sedimentation of a grinding aid activator. (Refer to...) Figure 1 and Figure 2A storage tank for preventing sedimentation of a grinding aid activator includes a tank body 1 and a stirring mechanism 2. The tank body 1 consists of an outer shell 101 and an inner liner 102. A heat insulation layer is provided between the outer shell 101 and the inner liner 102. The heat insulation layer is...

[0028] Includes a frame 11, the bottom of which is equipped with brake casters, which facilitates movement and transfer.

[0029] The tank body 1 is horizontally fixed on the frame 11, and the stirring mechanism 2 is horizontally arranged inside the tank body 1. The stirring mechanism 2 can be a commonly used stirring mechanism 2 in the prior art, and can refer to the stirring mechanism 2 in patent publication number CN219602156U, which specifically includes a stirring shaft 201 and stirring blades 202. One end of the stirring mechanism 2 extends out of the tank body 1 and is connected to the reduction motor 3. A tank cover 4 is detachably connected to one end of the tank body 1. In this embodiment, the tank body 1 and the tank cover 4 are detachably connected by bolts.

[0030] The tank cover 4 is equipped with a large, openable inspection door 5, allowing access to the tank body 1 for maintenance. Additionally, a small inspection door 9 is located on one side of the tank body 1 for minor maintenance or observation. A feed inlet 6 is located on the upper side of one side of the tank body 1. Figure 2 As shown, a baffle plate 10 is provided on the inner wall of the tank 1 below the feed inlet 6. The baffle plate is inclined upwards, which can promote the solid waste gel grinding activator entering the tank 1 from the feed inlet 6 to flow towards the center side, increase turbulence, and improve the anti-sedimentation effect.

[0031] The tank body 1 has a discharge port 7 located on one side of the lower part. The inner wall of the tank body 1 is coated with stainless steel or epoxy resin to prevent corrosion and avoid acid or alkaline corrosion.

[0032] In addition, a densitometer 8 with a probe that can extend into the tank body 1 is provided on the tank cover 4 or the tank body 1, so as to detect the density of the solid waste gel grinding aid activator and monitor the concentration of suspended solids in real time, thereby providing a certain early warning of the precipitation state of the solid waste gel grinding aid activator.

[0033] This invention uses a tank 1 consisting of an outer shell 101 and an inner liner 102, with a thermal insulation layer between them. The thermal insulation layer is made of rock wool or aluminum silicate fiber to maintain the temperature inside the tank 1, preventing crystallization caused by excessively low temperatures of the solid waste gel grinding activator. By horizontally mounting the tank 1 on the frame 11, the height of the tank 1 is reduced, shortening the particle settling distance. Combined with the slope of the tank bottom, this promotes material flow, reduces the caking of inorganic salts such as sulfates, and effectively inhibits sedimentation and stratification. Furthermore, the horizontal configuration allows personnel to directly enter the tank from the end (unlike vertical configurations which require scaffolding or ladders), reducing maintenance time by more than 40%. Additionally, the horizontal configuration allows the inlet and outlet to be located on the side, minimizing the drop and reducing the resistance to conveying viscous components such as polycarboxylic acid.

[0034] In the description of this utility model, it should be noted that, 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 based on the specific circumstances. It should be understood that the specific embodiments described herein are only for understanding this utility model and are not intended to limit this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

Claims

1. A storage tank for preventing sedimentation of a grinding aid activator, comprising a tank body and a stirring mechanism, characterized in that: The system includes a frame, with the tank horizontally fixed on the frame. The stirring mechanism is horizontally positioned inside the tank, with one end extending out of the tank and connected to a geared motor. A tank cover is detachably connected to one end of the tank, and the tank cover has a large, openable inspection door. A feed inlet is located on the upper side of one side of the tank, and a discharge outlet is located on the lower side of one side of the tank. The inner wall of the tank is coated with stainless steel or epoxy resin. A densitometer with a probe that can extend into the tank is located on the tank cover or the tank body.

2. The anti-sedimentation storage tank for grinding aid activator according to claim 1, characterized in that: The bottom of the frame is equipped with braked casters.

3. The anti-sedimentation storage tank for grinding aid activator according to claim 1, characterized in that: A small inspection door is provided on one side of the tank.

4. The anti-sedimentation storage tank for grinding aid activator according to claim 1, characterized in that: The tank body and the tank cover are detachably connected by bolts.

5. The anti-sedimentation storage tank for grinding aid activator according to claim 1, characterized in that: A baffle plate is provided on the inner wall of the tank below the feed inlet, and the baffle plate is inclined upward.

6. The anti-sedimentation storage tank for grinding aid activator according to claim 1, characterized in that: The tank consists of an outer shell and an inner liner, with a heat insulation layer between the outer shell and the inner liner.

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