A raw material stirring device for block bricks

Abstract

A kind of block brick raw material stirring device, including stirring cylinder and gas agent injection cylinder.Stirring cylinder as mixing core container, bottom is equipped with support column to ensure stable operation, top sealing cover plate can prevent dust escape and impurity invasion, cover plate on stirring motor drive rotating shaft and stirring rod, realize raw material uniform mixing to reduce dead angle.Gas agent injection cylinder is used to store gas generating agent suspension, its equipped stirring structure can prevent gas generating agent settlement, through solenoid valve controlled liquid outlet pipe precision control injection amount and opportunity.Stirring cylinder adopts inner and outer sandwich structure, temperature is adjusted by circulating liquid pipe, cooperate with inner wall temperature monitor to form closed loop control, ensure that slurry temperature is stable.Supply liquid ring and evenly distributed liquid outlet can make gas generating agent more evenly distributed, overall device improves raw material mixing precision and efficiency, meet the requirements of block brick production process.

Description

Technical Field

[0001] This utility model relates to the field of building material production equipment technology, and in particular to a mixing device for raw materials of masonry blocks. Background Technology

[0002] As a lightweight, porous building material, the uniformity of raw material mixing and the reaction efficiency of the foaming agent directly determine the pore structure and mechanical properties of aerated concrete blocks during production. Existing mixing devices suffer from the following technical deficiencies in practical applications:

[0003] 1. Traditional equipment often adds the gas generating agent simultaneously with or prematurely with silicon and calcium materials, causing aluminum powder to react with the high-alkali slurry in advance, resulting in insufficient gas generation or gas escape, and the final product has problems with uneven distribution of dense areas and pores.

[0004] 2. Gas-generating agents are often added by direct pouring or single-point injection, which can easily lead to local aggregation in the slurry, resulting in excessive or insufficient gas generation in certain areas, which seriously affects the strength and thermal insulation performance of the blocks.

[0005] 3. The temperature of the slurry has a significant impact on the reaction rate of the gas-generating agent. The existing equipment does not have an effective temperature monitoring and regulation structure. The reaction is slow at low temperatures and violent at high temperatures, both of which will lead to disordered pore structure and a decrease in product qualification rate. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a mixing device that can accurately control the feeding sequence, achieve uniform dispersion of the gas generating agent, and dynamically regulate the slurry performance and temperature, so as to meet the technical requirements of efficient production of aerated concrete blocks.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A mixing device for masonry brick raw materials includes a mixing drum and a gas-expanding agent injection cylinder. A support column is vertically installed on the bottom surface of the mixing drum and placed at the working location through the support column. A cover plate is installed at the top port of the mixing drum. A first mixing motor is installed on the upper surface of the cover plate. The transmission mechanism of the first mixing motor is connected to a rotating shaft. The rotating shaft vertically passes through the cover plate and is coaxially arranged with the mixing drum. A mixing rod is vertically connected to the outer wall of the rotating shaft. A gas-expanding agent injection cylinder is also installed on the cover plate and is connected to the mixing drum.

[0009] In a preferred embodiment, the stirring drum includes an outer wall and an inner wall, which are coaxially arranged to form an inner and outer sandwich structure. A circulating liquid pipe is connected to the outer wall, and the circulating liquid pipe is connected to the sandwich cavity between the outer wall and the inner wall.

[0010] In a preferred embodiment, a powder inlet is provided on the cover plate, and a discharge outlet is provided on the bottom surface of the mixing drum. The discharge outlet is connected to a discharge pipe, and a discharge valve is provided on the discharge pipe.

[0011] In a preferred embodiment, the vaporizing agent injection cylinder includes a liquid injection cylinder. The bottom surface of the liquid injection cylinder is vertically mounted on the upper end surface of the cover plate via a connecting column. A vaporizing agent inlet is provided at the upper end surface of the liquid injection cylinder. A liquid replenishment pipe is connected to the side of the liquid injection cylinder, and a liquid outlet pipe is connected to the bottom surface of the liquid injection cylinder. A liquid outlet valve is provided on the liquid outlet pipe.

[0012] In a preferred embodiment, a second stirring motor is installed on the top surface of the injection cylinder, and the second stirring motor is connected to a stirring device and extends into the injection cylinder.

[0013] In a preferred embodiment, a liquid supply ring is provided inside the stirring tank. The liquid supply ring is located near the top opening of the stirring tank and has a hollow inner structure that is connected to the liquid outlet pipe.

[0014] In a preferred embodiment, the bottom surface of the liquid supply ring is a sloping structure, and multiple liquid outlets are vertically arranged on the bottom sloping surface of the liquid supply ring, with the liquid outlets arranged symmetrically in a ring around the axis of the liquid supply ring.

[0015] In a preferred embodiment, a temperature monitoring device is installed on the inner wall of the stirring tank, and the temperature monitoring device is wirelessly connected to an external control center.

[0016] A mixing device for masonry brick raw materials, which has the following beneficial effects:

[0017] 1. With the independently set gas-generating agent injection cylinder and liquid outlet valve, the timing of adding the gas-generating agent suspension can be strictly controlled, ensuring that the siliceous and calcareous materials complete the dry mixing and pulping process before the gas-generating agent is injected. This completely avoids problems such as premature or insufficient gas generation caused by the gas-generating agent reacting with the high-alkali slurry in advance, and significantly improves the gas generation efficiency and reaction integrity.

[0018] 2. The gas-generating agent injection cylinder achieves the ring-shaped distribution injection of the gas-generating agent suspension through the liquid supply ring. Combined with the bottom slope structure of the liquid supply ring and multiple symmetrically arranged liquid outlets, the gas-generating agent can be evenly dispersed along the cross-section of the mixing cylinder. At the same time, the second stirring motor in the injection cylinder can prevent the gas-generating agent (such as aluminum powder) from settling and agglomerating, further ensuring that the gas-generating agent diffuses in the slurry without dead corners, effectively avoiding excessive or insufficient local gas generation, and significantly improving the uniformity and density of the internal pores of the block.

[0019] 3. The jacketed structure of the mixing drum facilitates rapid temperature adjustment via the circulating liquid pipe. Combined with real-time feedback from the temperature monitor, this reduces production interruptions caused by temperature fluctuations. The detachable cover and the simple structure of the mixing components facilitate regular cleaning of residual slurry from the inner wall, reducing maintenance costs and downtime. Furthermore, the replenishment pipe of the vaporizing agent injection cylinder enables continuous material supply, reducing frequent feeding steps and improving continuous production capacity. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;

[0022] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0023] Figure 3 This is an enlarged schematic diagram of the structure of the vapor-generating agent injection cylinder of this utility model;

[0024] Figure 4 This is an enlarged schematic diagram of the internal liquid supply ring of this utility model.

[0025] In the diagram: 1. Stirring drum; 101. Outer wall; 102. Inner wall; 103. Outlet; 2. Support column; 3. Outlet pipe; 4. Outlet valve; 5. Powder inlet; 6. First stirring motor; 7. Gas-generating agent injection cylinder; 701. Liquid injection cylinder; 702. Second stirring motor; 703. Gas-generating agent inlet; 704. Liquid replenishment pipe; 705. Liquid outlet pipe; 706. Outlet valve; 707. Connecting column; 8. Cover plate; 9. Circulating liquid pipe; 10. Rotating shaft; 11. Stirring rod; 12. Liquid supply ring; 13. Outlet; 14. Temperature monitor. Detailed Implementation

[0026] like Figure 1 and Figure 2 As shown, Figure 1 and Figure 2 As shown, a brick block raw material mixing device includes a mixing drum 1 and a gas-infusing agent injection cylinder 7. Four support columns 2 are vertically arranged on the bottom surface of the mixing drum 1 and are stably placed at the working location through the support columns 2. A cover plate 8 is sealed at the top port of the mixing drum 1. A first stirring motor 6 is fixedly installed at the center of the upper end surface of the cover plate 8. The transmission mechanism of the first stirring motor 6 is vertically connected to a rotating shaft 10. The rotating shaft 10 vertically passes through the cover plate 8 and is coaxially arranged with the mixing drum 1. Multiple sets of stirring rods 11 are evenly and vertically connected to the outer wall of the rotating shaft 10 along the axial direction. The stirring rods 11 are symmetrically distributed around the rotating shaft 10. A gas-infusing agent injection cylinder 7 is also fixedly installed on the cover plate 8. The discharge end of the gas-infusing agent injection cylinder 7 is connected to the interior of the mixing drum 1.

[0027] Preferred solutions include Figure 2 As shown, the mixing drum 1 includes an outer wall 101 and an inner wall 102. The outer wall 101 and the inner wall 102 are coaxially arranged and form a closed inner and outer sandwich structure. Two circulating liquid pipes 9 are symmetrically connected on the outer wall 101. The circulating liquid pipes 9 are connected to the sandwich cavity between the outer wall 101 and the inner wall 102. A temperature regulating medium is introduced into the sandwich cavity through the circulating liquid pipes 9, which can regulate the temperature of the slurry in the mixing drum in real time, so that the temperature of the slurry is stabilized in a suitable range of 40-60℃. This solves the problem of abnormal gas generation reaction caused by excessively high or low temperatures in the background technology, and achieves precise control of the slurry temperature.

[0028] Preferred solutions include Figure 1 As shown, two powder inlets 5 are symmetrically arranged on the cover plate 8. The powder inlets 5 are used to add siliceous materials and calcareous materials respectively, which facilitates the differentiation of raw material types and avoids mixing errors. The powder inlets 5 are equipped with sealing caps to prevent the raw materials from getting damp and clumping or falling in impurities, thus ensuring the purity of the raw materials. A discharge port 103 is opened at the center of the bottom surface of the mixing drum 1. The discharge port 103 is connected to the discharge pipe 3. The discharge pipe 3 is equipped with a discharge valve 4. The discharge valve 4 adopts a manual or electric ball valve structure, which facilitates precise control of the discharge speed and ensures that the mixed slurry is poured into the mold in time within 3-5 minutes.

[0029] Preferred solutions include Figure 3 As shown, the gas-generating agent injection cylinder 7 includes an injection cylinder 701, which is used to store the pre-mixed gas-generating agent suspension to prevent the gas-generating agent from contacting other raw materials before injection. The bottom surface of the injection cylinder 701 is vertically mounted on the upper end face of the cover plate 8 through four connecting columns 707. The connecting columns 707 are rectangularly distributed to stabilize and support the injection cylinder, preventing the equipment from shaking during injection and affecting the metering accuracy of the gas-generating agent. A gas-generating agent inlet 703 is opened on one side of the upper end face of the injection cylinder 701 for adding gas-generating agent (such as aluminum powder) into the injection cylinder. The middle section of the side of the injection cylinder 701 is connected to a replenishing pipe 704, through which water or additives for mixing the suspension can be added to ensure a stable gas-generating agent concentration. A control valve is provided on the replenishing pipe 704 for precise control of the replenishment amount. The bottom center of the injection cylinder 701 is connected to the outlet pipe 705, and the outlet pipe 705 is equipped with an outlet valve 706. The outlet valve 706 is a solenoid valve structure, which can precisely control the injection timing and flow rate of the gas generating agent through an external control center.

[0030] Preferred solutions include Figure 3As shown, a second stirring motor 702 is installed at the center of the top surface of the injection cylinder 701. The output shaft of the second stirring motor 702 is connected to a stirring shaft, which extends into the injection cylinder 701. Stirring blades are fixedly connected to the stirring shaft and are evenly distributed along the axial direction of the stirring shaft. The stirring blades are driven to rotate continuously by the second stirring motor, which can prevent the gas generating agent from settling or agglomerating in the suspension and ensure that the gas generating agent always remains in a uniformly dispersed state.

[0031] Preferred solutions include Figure 4 As shown, a liquid supply ring 12 is provided inside the stirring tank 1. The liquid supply ring 12 is located near the top opening of the stirring tank 1. The liquid supply ring 12 is fixed to the inner wall of the stirring tank 1 by a bracket. The liquid supply ring 12 has an inner hollow structure and its inlet end is connected to the liquid outlet pipe 705. After the gas generating agent suspension enters the liquid supply ring through the liquid outlet pipe, it can be initially dispersed through the annular structure of the liquid supply ring, avoiding the formation of local aggregation when the gas generating agent is directly injected.

[0032] Preferred solutions include Figure 4 As shown, the bottom surface of the liquid supply ring 12 is an inwardly inclined slope structure. Multiple liquid outlets 13 are vertically arranged on the bottom slope of the liquid supply ring 12. The liquid outlets 13 are symmetrically arranged in a ring around the axis of the liquid supply ring 12. The outlets 13 have the same aperture and uniform spacing. The inclined slope can guide the gas generating agent to flow evenly to each liquid outlet. With the ring-shaped distribution of liquid outlets, the gas generating agent can be evenly injected into the slurry along the circumference of the inner wall of the mixing drum. Combined with the rotation and stirring of the stirring rod, the dispersion uniformity of the gas generating agent is further improved.

[0033] Preferred solutions include Figure 4 As shown, a temperature monitor 14 is embedded in the inner wall 102 of the mixing drum 1. The sensing end of the temperature monitor 14 is close to the inner side wall of the inner wall 102, which can monitor the actual temperature of the slurry in the mixing drum in real time. The temperature monitor 14 is connected to the external control center via wireless signal, which can transmit monitoring data in real time. This allows the control center to adjust the temperature of the medium in the circulating liquid pipe according to the temperature data, ensuring that the slurry temperature is always within the appropriate reaction range, and realizing closed-loop control of the slurry temperature.

Claims

1. A mixing device for raw materials of brick blocks, comprising a mixing drum (1) and a gas-generating agent injection drum (7), characterized in that: A support column (2) is vertically installed on the bottom surface of the mixing drum (1) and placed at the working location through the support column (2). A cover plate (8) is installed at the top port of the mixing drum (1). A first stirring motor (6) is installed on the upper end surface of the cover plate (8). The transmission mechanism of the first stirring motor (6) is connected to a rotating shaft (10). The rotating shaft (10) vertically passes through the cover plate (8) and is coaxial with the mixing drum (1). A stirring rod (11) is vertically connected to the outer wall of the rotating shaft (10). A gas-generating agent injection cylinder (7) is also installed on the cover plate (8). The gas-generating agent injection cylinder (7) is connected to the mixing drum (1).

2. The brick raw material mixing device according to claim 1, characterized in that: The stirring drum (1) includes an outer wall (101) and an inner wall (102). The outer wall (101) and the inner wall (102) are coaxially arranged and form an inner and outer sandwich structure. A circulating liquid pipe (9) is connected to the outer wall (101), and the circulating liquid pipe (9) is connected to the sandwich cavity between the outer wall (101) and the inner wall (102).

3. The brick raw material mixing device according to claim 1, characterized in that: The cover plate (8) has a powder inlet (5), and the bottom surface of the mixing drum (1) has a discharge port (103). The discharge port (103) is connected to the discharge pipe (3), and the discharge pipe (3) is equipped with a discharge valve (4).

4. The brick raw material mixing device according to claim 1, characterized in that: The vaporizing agent injection cylinder (7) includes an injection cylinder (701). The bottom surface of the injection cylinder (701) is vertically installed on the upper end surface of the cover plate (8) through a connecting column (707). The upper end surface of the injection cylinder (701) is provided with a vaporizing agent inlet (703). The side of the injection cylinder (701) is connected to a replenishing pipe (704). The bottom surface of the injection cylinder (701) is connected to an outlet pipe (705). An outlet valve (706) is provided on the outlet pipe (705).

5. The brick raw material mixing device according to claim 4, characterized in that: A second stirring motor (702) is installed on the top surface of the injection cylinder (701). The second stirring motor (702) is connected to the stirring device and extends into the injection cylinder (701).

6. The brick raw material mixing device according to claim 4, characterized in that: The stirring tank (1) is provided with a liquid supply ring (12), which is located near the top opening of the stirring tank (1). The liquid supply ring (12) has a hollow structure and is connected to the liquid outlet pipe (705).

7. The brick raw material mixing device according to claim 6, characterized in that: The bottom surface of the liquid supply ring (12) is a sloping structure. Multiple liquid outlets (13) are vertically arranged on the bottom sloping surface of the liquid supply ring (12). The liquid outlets (13) are arranged symmetrically around the axis of the liquid supply ring (12).

8. The brick raw material mixing device according to claim 1, characterized in that: A temperature monitoring instrument (14) is installed on the inner wall (102) of the stirring drum (1), and the temperature monitoring instrument (14) is wirelessly connected to the external control center.

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