Cement additive rapid mixing device

Abstract

The utility model discloses cement additive quick mixing device, including base, still include mixing mechanism, the base top is provided with mixing mechanism, the mixing mechanism includes jack, mixing box, conical hopper, outlet pipe, air vent, gas supply pipe and discharge pipe, the base top both sides all are installed with jack and have mixing box through jack swing joint, the high pressure air of supply is discharged by the air vent of outlet pipe side edge, and the powder of conical hopper inside is blown up, and airflow forms a high -speed rotating gas -solid two -phase flow in mixing chamber, under the action of airflow, material collides, rubs and diffuses ceaselessly to realize the uniform mixing of material, and the kinetic energy and fluid mechanics effect of airflow make the rapid and even mixing between material, improve mixing efficiency, shorten mixing time -consuming, and mixing process is in the closed space, and the powder can not discharge, avoids the pollution to working environment in the powder mixing process.

Description

Technical Field

[0001] This utility model relates to the field of cement mixing technology, and in particular to a rapid mixing device for cement additives. Background Technology

[0002] Cement, a powdered hydraulic inorganic binder, forms a paste when mixed with water. It can harden in air or water and firmly bind materials such as sand and stone together. It is a widely used and very common building material. During its use, different additives need to be added according to different usage requirements.

[0003] The existing cement mixing process with additives has the following drawbacks: When cement is mixed with some additives, such as thickeners and mineral aggregates, it needs to be mixed with cement in the dry mixing stage before water and other materials are added. The existing mixing method generally involves directly pouring cement and additives into a mechanical mixer for mixing, which results in low mixing efficiency, long time consumption, and dust that is easily scattered during the powder mixing process, polluting the processing environment. Therefore, we propose a rapid cement additive mixing device. Utility Model Content

[0004] The main purpose of this utility model is to provide a rapid mixing device for cement additives. By using a pneumatically sealed mixing structure with a mixing mechanism set on the top of the base, it can quickly and efficiently premix dry powder materials, improve mixing efficiency, and avoid dust pollution, thus effectively solving the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A cement additive rapid mixing device includes a base and a mixing mechanism. The mixing mechanism is located on the top of the base and includes jacks, a mixing box, a conical hopper, an air outlet pipe, an air outlet hole, an air supply pipe, and a discharge pipe. Jacks are installed on both sides of the top of the base and are movably connected to the mixing box through the jacks. The conical hopper is embedded inside the mixing box, and the bottom of the conical hopper has an integrally formed discharge pipe extending to the outside of the mixing box. An air outlet pipe is vertically fixed inside the discharge pipe by a bracket, and air outlet holes are spaced apart on the side of the air outlet pipe. An air supply pipe is installed at the air inlet end of the air outlet pipe, extending to the outside of the discharge pipe and connected to an external air supply device.

[0006] Furthermore, it also includes an auxiliary mechanism. The top of the mixing tank is equipped with an auxiliary mechanism, which includes a threaded sealing seat, a filter element, an end pipe, a diverter pipe, and a connecting pipe. The threaded sealing seat is screwed to the top of the mixing tank, and a filter element extending into the conical hopper is installed at its bottom end. An end pipe is vertically arranged at the top of the threaded sealing seat. A diverter pipe extending into the top of the mixing tank is installed on the side of the air supply pipe, and a connecting pipe is installed between the bottom of the diverter pipe and the end pipe. When air is supplied to the conical hopper for mixing through the air outlet pipe, the powder is fully dispersed and mixed inside the conical hopper. At the same time, the gas inside the conical hopper is discharged through the end pipe after passing through the filter element. The filter element plays a filtering and isolating role for the powder, preventing the powder from being discharged. At the same time, a diverter pipe is provided on the side of the air supply pipe and connected to the end pipe. When needed, a high-pressure airflow can be supplied through the diverter pipe to perform backflushing cleaning treatment on the inside of the filter element.

[0007] Furthermore, the mixing box has symmetrically arranged lifting slots on both sides of the conical hopper, and the power output end of the jack extends into the lifting slot. The power end of the jack is inserted into the lifting slot, so that when the height of the mixing box is reduced, the jack can be inserted into the lifting slot without affecting the height adjustment of the mixing box.

[0008] Furthermore, limit holes are vertically opened at the four corners inside the mixing box, and limit rods that are inserted into the limit holes are vertically welded at the four corners of the top of the base; the limit holes and limit rods cooperate to limit the position of the mixing box, so that it can only move in the vertical direction.

[0009] Furthermore, a feeding box is fixedly connected to the side of the mixing box via a bracket. A feeding pipe extending into the conical hopper is installed at the bottom of the feeding box, and a valve A is installed inside the feeding pipe. After the mixed cement and additive raw materials are poured into the feeding box, valve A is opened to allow them to be discharged into the conical hopper through the feeding pipe. After the material is discharged, valve A is closed.

[0010] Furthermore, a three-way valve is installed at the connection between the diversion pipe and the air supply pipe, and valve B is installed at the end of the diversion pipe away from the air supply pipe. In the mixing state, valve B is opened, and the gas discharged from the filter element and the end pipe is discharged from the end of the diversion pipe. When cleaning the filter element, valve B is closed, and the high-pressure gas supplied is adjusted by the three-way valve to enter the filter element through the diversion pipe for backflushing.

[0011] Compared with the prior art, this utility model has the following beneficial effects: The mixing box is equipped with a conical hopper structure. The height of the mixing box and the feeding box can be adjusted by synchronously adjusting the jacks on both sides of the top of the base. Lowering the height of the mixing box and the feeding box during feeding makes it easier to feed cement and additive raw materials into the feeding box. The material entering the feeding box is discharged into the conical hopper through the feeding pipe. The air supply pipe is connected to an external high-pressure air supply device via a connecting hose. When the raw materials are fed into the conical hopper, the air supply pipe is opened, and the supplied high-pressure air is discharged through the air outlet on the side of the air outlet pipe, blowing up the powder inside the conical hopper. The airflow forms a high-speed rotating gas-solid two-phase flow in the mixing chamber. The material is suspended under the action of the airflow and is drawn into the airflow. Under the action of the airflow, the material continuously collides, rubs, and diffuses, thereby achieving uniform mixing of the material. The kinetic energy and fluid dynamics of the airflow enable rapid and uniform mixing of materials, improving mixing efficiency and shortening mixing time. The mixing process takes place in a closed space, allowing filtered air to escape while preventing powder from escaping, thus avoiding pollution of the working environment. After mixing, the mixing tank height can be increased, and the discharge pipe can be connected to the cement mixing equipment and opened to discharge the mixed powder raw materials into the mixer for subsequent production processing. When air is supplied to the conical hopper for mixing through the air outlet pipe, the powder is fully dispersed and mixed inside the hopper. Simultaneously, the gas inside the conical hopper passes through the filter element and is discharged through the end pipe. The filter element filters and isolates the powder, preventing its escape. A diversion pipe connected to the end pipe is located on the side of the air supply pipe, allowing high-pressure airflow to be supplied through the diversion pipe for backflushing and cleaning of the filter element when needed. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the cement additive rapid mixing device of this utility model.

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the mixing box in the middle position of the cement additive rapid mixing device of this utility model.

[0014] Figure 3 This is a schematic diagram of the bottom structure of the mixing tank of the cement additive rapid mixing device of this utility model.

[0015] Figure 4 This is a schematic diagram of the filter element structure of the cement additive rapid mixing device of this utility model.

[0016] In the diagram: 1. Base; 2. Mixing mechanism; 201. Jack; 202. Mixing box; 203. Conical hopper; 204. Air outlet pipe; 205. Air outlet; 206. Air supply pipe; 207. Lifting groove; 208. Discharge pipe; 209. Limiting hole; 210. Limiting rod; 211. Feed box; 212. Feed pipe; 213. Valve A; 3. Auxiliary mechanism; 301. Threaded sealing seat; 302. Filter element; 303. End pipe; 304. Diverter pipe; 305. Connecting pipe; 306. Valve B; 307. Three-way valve. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figure 1-4 As shown, a cement additive rapid mixing device includes a base 1 and a mixing mechanism 2. The mixing mechanism 2 is installed on the top of the base 1. The mixing mechanism 2 includes a jack 201, a mixing box 202, a conical hopper 203, an air outlet pipe 204, an air outlet 205, an air supply pipe 206, and a discharge pipe 208. Jacks 201 are installed on both sides of the top of the base 1 and the mixing box 202 is movably connected to the jacks 201. The conical hopper 203 is embedded inside the mixing box 202, and the bottom end of the conical hopper 203 is integrally formed with a discharge pipe 208 extending to the outside of the mixing box 202. The air outlet pipe 204 is vertically fixed inside the discharge pipe 208 by a bracket, and the side of the air outlet pipe 204 is provided with air outlets 205 spaced apart. An air supply pipe 206 extending to the outside of the discharge pipe 208 and connected to an external air supply device is installed at the air inlet end of the air outlet pipe 204.

[0019] The system also includes an auxiliary mechanism 3. The top of the mixing tank 202 is equipped with the auxiliary mechanism 3, which includes a threaded sealing seat 301, a filter element 302, an end pipe 303, a diverter pipe 304, and a connecting pipe 305. The threaded sealing seat 301 is screwed to the top of the mixing tank 202, and its bottom end is fitted with a filter element 302 extending into the conical hopper 203. The top of the threaded sealing seat 301 has a vertically positioned end pipe 303. A diverter pipe 304 extending to the top of the mixing tank 202 is installed on the side of the air inlet pipe. A connecting pipe 305 is installed between the bottom and the end pipe 303. When air is supplied to the conical hopper 203 for mixing through the air outlet pipe 204, the powder is fully dispersed and mixed inside the conical hopper 203. At the same time, the gas inside the conical hopper 203 is discharged from the end pipe 303 after passing through the filter element 302. The filter element 302 plays a filtering and isolation role for the powder, preventing the powder from being discharged. Meanwhile, a diversion pipe 304 is provided on the side of the air supply pipe 206 and connected to the end pipe 303. When needed, high-pressure airflow can be supplied through the diversion pipe 304 to backflush and clean the inside of the filter element 302.

[0020] The mixing box 202 has symmetrically arranged lifting grooves 207 on both sides of the conical hopper 203. The power output end of the jack 201 extends into the lifting groove 207. Limiting holes 209 are vertically opened at the four corners of the mixing box 202. Limiting rods 210 are vertically welded to the four corners of the top of the base 1 and inserted into the limiting holes 209. The power end of the jack 201 is inserted into the lifting groove 207. When the height of the mixing box 202 is lowered, the jack 201 can be inserted into the lifting groove 207 without affecting the height adjustment of the mixing box 202. The limiting holes 209 and the limiting rods 210 cooperate to limit the position of the mixing box 202, so that it can only move in the vertical direction.

[0021] The mixing box 202 is fixedly connected to the side of the feeding box 211 by a bracket. The bottom of the feeding box 211 is equipped with a feeding pipe 212 that extends into the conical hopper 203, and a valve A213 is installed inside the feeding pipe 212. After the cement and additive raw materials are mixed, they are poured into the feeding box 211. The valve A213 is opened to allow the material to be discharged into the conical hopper 203 through the feeding pipe 212. After the material is discharged, the valve A213 is closed.

[0022] A three-way valve 307 is installed at the connection between the diversion pipe 304 and the air supply pipe 206. A valve B306 is installed at the end of the diversion pipe 304 away from the air supply pipe 206. In the mixing state, the valve B306 is opened, and the gas discharged from the filter element 302 and the end pipe 303 is discharged from the end of the diversion pipe 304. When cleaning the filter element 302, the valve B306 is closed, and the three-way valve 307 is adjusted so that the supplied high-pressure gas enters the filter element 302 through the diversion pipe 304 for backflushing.

[0023] It should be noted that this utility model is a rapid mixing device for cement additives. During use, the mixing tank 202 is equipped with a conical hopper 203. The height of the mixing tank 202 and the feeding tank 211 can be adjusted by synchronously adjusting the jacks 201 on both sides of the top of the base 1. Lowering the height of the mixing tank 202 and the feeding tank 211 during material feeding allows cement and additive raw materials to be more easily fed into the feeding tank 211. The material entering the feeding tank 211 is discharged into the conical hopper 213 through the feed pipe 212. Inside the conical hopper 203, the air supply pipe 206 is connected to an external high-pressure air supply device via a connecting hose. When raw materials are fed into the conical hopper 203, the air supply pipe 206 is opened, and the supplied high-pressure air is discharged through the air outlet 205 on the side of the air outlet pipe 204, blowing the powder inside the conical hopper 203. The airflow forms a high-speed rotating gas-solid two-phase flow in the mixing chamber. The material is suspended under the action of the airflow and is drawn into the airflow. Under the action of the airflow, the material continuously collides, rubs, and diffuses, thereby achieving uniform mixing of the material. The kinetic energy and fluid dynamics effect of the airflow enable the materials to mix quickly and uniformly, improving mixing efficiency and shortening mixing time. Moreover, the mixing process is in a closed space, where air can be discharged after filtration, but powder cannot be discharged, avoiding pollution of the working environment during powder mixing. After mixing, the height of the mixing box 202 can be raised, and the discharge pipe 208 can be connected to the cement mixing equipment and opened to discharge the mixed powder raw materials into the mixer for subsequent production processing. When air is supplied to the conical hopper 203 through the air outlet pipe 204 for mixing, the powder is fully dispersed and mixed inside the conical hopper 203. At the same time, the gas inside the conical hopper 203 is discharged from the end pipe 303 after passing through the filter element 302. The filter element 302 plays a filtering and isolation role for the powder, preventing the powder from being discharged. Meanwhile, the side of the air supply pipe 206 is provided with a diversion pipe 304 connected to the end pipe 303. When needed, high-pressure airflow can be supplied through the diversion pipe 304 to backflush and clean the inside of the filter element 302.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cement additive rapid mixing device comprising a base (1), characterized in that, It also includes a mixing mechanism (2), which is provided on the top of the base (1). The mixing mechanism (2) includes a jack (201), a mixing box (202), a conical hopper (203), an air outlet pipe (204), an air outlet (205), an air supply pipe (206), and a discharge pipe (208). Jacks (201) are installed on both sides of the top of the base (1), and the mixing box (202) is movably connected to the jacks (201). The mixing box (204) is provided on the top of the base (1). 2) An internal conical hopper (203) is embedded inside, and the bottom end of the conical hopper (203) is integrally formed with a discharge pipe (208) extending to the outside of the mixing box (202). An air outlet pipe (204) is vertically fixed inside the discharge pipe (208) by a bracket, and an air outlet hole (205) is spaced apart on the side of the air outlet pipe (204). An air supply pipe (206) extending to the outside of the discharge pipe (208) and connected to an external air supply device is installed at the air inlet end of the air outlet pipe (204).

2. The cement additive rapid mixing device according to claim 1, characterized in that: It also includes an auxiliary mechanism (3). The top of the mixing tank (202) is provided with an auxiliary mechanism (3). The auxiliary mechanism (3) includes a threaded sealing seat (301), a filter element (302), an end pipe (303), a diversion pipe (304), and a connecting pipe (305). The threaded sealing seat (301) is screwed to the top of the mixing tank (202) and a filter element (302) extending into the conical hopper (203) is installed at its bottom end. An end pipe (303) is provided vertically at the top of the threaded sealing seat (301). A diversion pipe (304) extending to the top of the mixing tank (202) is installed on the side of the air supply pipe (206), and a connecting pipe (305) is installed between the bottom of the diversion pipe (304) and the end pipe (303).

3. The cement additive rapid mixing device according to claim 1, characterized in that: The mixing box (202) has symmetrically opened lifting slots (207) on both sides of the conical hopper (203), and the power output end of the jack (201) extends into the lifting slots (207).

4. The cement additive rapid mixing device of claim 1, wherein: The mixing box (202) has vertically spaced limit holes (209) at each of its four corners, and the base (1) has vertically welded limit rods (210) at each of its four corners that are inserted into the limit holes (209).

5. The cement additive rapid mixing device of claim 1, wherein: The mixing box (202) is fixedly connected to the side of the feeding box (211) by a bracket. The bottom of the feeding box (211) is equipped with a feeding pipe (212) extending into the conical hopper (203), and a valve A (213) is installed inside the feeding pipe (212).

6. The cement additive rapid mixing device according to claim 2, characterized in that: A three-way valve (307) is installed at the connection between the diversion pipe (304) and the gas supply pipe (206), and a valve B (306) is installed at the end of the diversion pipe (304) away from the gas supply pipe (206).

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