Vacuum extrusion molding device for environment-friendly bricks

Abstract

The utility model provides an environment-friendly brick vacuum extrusion molding device which comprises an extruder main body, an extrusion nozzle, an auger, a vacuum pump and an extrusion thickness adjusting mechanism, the extrusion thickness adjusting mechanism comprises a hydraulic rod, a connecting plate, a lifting plate and a limiting rod, one side of the extrusion nozzle is provided with a molding opening, and the vacuum pump vacuumizes the interior of the extruder main body. Then the auger can stir and convey the raw materials in the extruder main body, when the raw materials are conveyed to the extrusion nozzle and extruded from the forming opening, green bricks can be formed, the lifting plate is arranged at the top of the forming opening, and the hydraulic rod can drive the lifting plate to adjust the position through the connecting plate, so that the height of the forming opening is adjusted; when raw materials pass through the forming opening, green bricks with different thicknesses can be extruded, the extrusion thickness can be adjusted, an extrusion nozzle does not need to be replaced, the brick making efficiency can be improved, and the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge brick making, in particular to a vacuum extrusion molding device for environmentally friendly bricks. Background Art

[0002] With the continuous growth of population, the amount of domestic sewage is also increasing. When treating sewage, a large amount of sludge will be produced. If the sludge is discarded or piled up at will, it will cause environmental pollution. Therefore, after the sludge is obtained from sewage treatment, the sludge is generally reprocessed for utilization. The sludge treatment includes drying treatment. The moisture content in the sludge can be reduced to less than 35% through drying treatment. The dried sludge can be used for composting landfills, burning fuel and making environmentally friendly bricks. When making bricks, an extruder is needed to transport the raw materials to the After the extrusion nozzle, the raw materials are extruded from the extrusion nozzle to form brick blanks, and then the brick blanks are transported to the subsequent process. The size of the extrusion nozzle of the current extrusion molding device is mostly fixed. When extruding brick blanks, only brick blanks of a single thickness can be obtained. When brick blanks of other thicknesses are needed, the extrusion nozzle needs to be replaced. Since the extrusion nozzle will bear the thrust of the raw materials during the basic process, the extrusion nozzle and the extruder are mostly fastened together. The process of replacing the extrusion nozzle is relatively complicated, requiring the use of more tools and consuming more time, and cannot be adapted to the production of large quantities of multi-sized environmentally friendly bricks. Utility Model Content

[0003] In view of this, the utility model proposes an environmentally friendly brick vacuum extrusion molding device, which can adjust the size of the molding opening to facilitate extrusion of environmentally friendly bricks of different thicknesses and reduce production costs.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A vacuum extrusion molding device for environmentally friendly bricks comprises an extruder body, an extrusion nozzle, an auger, a vacuum pump and an extrusion thickness adjustment mechanism, wherein an opening is arranged on one side of the extruder body, the extrusion nozzle is arranged at the opening, a molding port is arranged on a side away from the opening, the auger is arranged inside the extruder body and located on one side of the extrusion nozzle, and the vacuum pump is arranged on the top of the extruder body; the extrusion thickness adjustment mechanism comprises a hydraulic rod, a connecting plate, a lifting plate and a limiting rod, the lifting plate is located in the molding port, one side of the lifting plate extends into the extrusion nozzle and is connected to the bottom surface of the connecting plate, the hydraulic rod is arranged on the inner wall of the extrusion nozzle, the output shaft of the hydraulic rod is connected to the top surface of the connecting plate, the top surface of the molding port is provided with a limiting groove, the bottom end of the limiting rod is connected to the top surface of the lifting plate, and the top end of the limiting rod extends into the limiting groove.

[0006] Preferably, it also includes a cutting mechanism, which includes a rotating motor and a cutter. The rotating motor is arranged on the outer wall of the extruder body, and its output shaft is connected to one end of the cutter. The molding port is located on one side of the rotation path of the cutter.

[0007] Preferably, the extrusion thickness adjustment mechanism further includes an airbag, an air pump and an air pipeline, the airbag is arranged on the side wall of the lifting plate, the air pump is arranged on the outer wall of the extrusion nozzle, and the air pipeline connects the air pump and the airbag.

[0008] Preferably, the gas pipeline is a corrugated pipe.

[0009] Preferably, the extrusion thickness adjustment mechanism further includes an air venting pipe and an air valve, the air venting pipe is connected to the air pipeline, and the air valve is arranged on the air venting pipe.

[0010] Preferably, a feed hopper is further included, a feed port is arranged at the top of the extruder body, and the bottom of the feed hopper is connected to the feed port.

[0011] Preferably, it also includes a sealing mechanism, which includes an electric push rod and a movable plate. The electric push rod is arranged on the top surface and the inner wall of the extruder body, and its output shaft is connected to the movable plate. The movable plate is located on one side of the feed port and above the opening.

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

[0013] ① Pour the raw materials into the main body of the extruder. After the vacuum inside the main body of the extruder is evacuated by a vacuum pump, the raw materials can be stirred and transported under the action of the auger. When the raw materials enter the extrusion nozzle, they can be extruded through the molding port to complete the production process of the brick blank;

[0014] ② A lifting plate is set at the top of the forming mouth. The hydraulic rod can drive the lifting plate down through the connecting plate to adjust the size of the forming mouth. When the raw materials are extruded through the forming mouth, bricks of different thicknesses can be formed to adjust the thickness of the bricks. There is no need to replace the extrusion nozzle, which improves the efficiency of brick making and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic structural diagram of an environmentally friendly brick vacuum extrusion molding device of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between an extrusion nozzle and an extruder body of an environmentally friendly brick vacuum extrusion molding device of the utility model;

[0018] Figure 3 It is a side view structural schematic diagram of an extrusion nozzle of an environmentally friendly brick vacuum extrusion forming device of the utility model;

[0019] In the figure, 1 is the extruder body, 2 is the extrusion nozzle, 3 is the auger, 4 is the vacuum pump, 5 is the opening, 6 is the molding port, 7 is the hydraulic rod, 8 is the connecting plate, 9 is the lifting plate, 10 is the limit rod, 11 is the limit groove, 12 is the rotating motor, 13 is the cutter, 14 is the air bag, 15 is the air pump, 16 is the air pipeline, 17 is the air release pipe, 18 is the air valve, 19 is the feed hopper, 20 is the feed port, 21 is the electric push rod, and 22 is the moving plate. DETAILED DESCRIPTION

[0020] In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0021] See also Figures 1 to 3 The utility model provides an environmentally friendly brick vacuum extrusion molding device, comprising an extruder body 1, an extrusion nozzle 2, an auger 3, a vacuum pump 4 and an extrusion thickness adjustment mechanism, wherein an opening 5 is provided on one side of the extruder body 1, the extrusion nozzle 2 is arranged at the opening 5, and a molding port 6 is provided on the side away from the opening 5, the auger 3 is arranged inside the extruder body 1 and located on one side of the extrusion nozzle 2, and the vacuum pump 4 is arranged on the top of the extruder body 1; the extrusion thickness adjustment mechanism comprises a hydraulic rod 7, a connecting plate 8, a lifting plate 9 and a limiting rod 10, the lifting plate 9 is located in the molding port 6, one side of which extends into the extrusion nozzle 2 and is connected to the bottom surface of the connecting plate 8, the hydraulic rod 7 is arranged on the inner wall of the extrusion nozzle 2, and its output shaft is connected to the top surface of the connecting plate 8, the top surface of the molding port 6 is provided with a limiting groove 11, the bottom end of the limiting rod 10 is connected to the top surface of the lifting plate 9, and the top end thereof extends into the limiting groove 11.

[0022] After adding the dried sludge and other raw materials into the extruder body 1, turn on the vacuum pump 4, which can form a vacuum environment in the extruder body 1, and then turn on the auger 3, which can stir the raw materials. The compactness and density can be improved under the vacuum environment. The reciprocating transportation of the raw materials in the extruder body 1 can be achieved by controlling the forward and reverse rotation of the auger 3. After stirring for a certain period of time, the auger 3 keeps rotating in the same direction to transport the raw materials to the extrusion nozzle 2. A molding port 6 is provided on one side of the extrusion nozzle 2. When the raw materials pass through the molding port 6, they can be extruded into brick blanks, and the brick blanks can be transported to the subsequent process for further production and processing of environmentally friendly bricks.

[0023] A lifting plate 9 is arranged on the top of the forming port 6, and the lifting plate 9 is connected to the connecting plate 8. The hydraulic rod 7 can drive the lifting plate 9 to lift and lower through the connecting plate 8. Since the lifting plate 9 and the connecting plate 8 form an L-shaped structure, the height of the forming port 6 in the raw material conveying direction can be adjusted. When the raw material passes through the forming port 6, brick blanks of different thicknesses can be formed, and the extrusion thickness can be adjusted to facilitate the production of environmentally friendly bricks of different thicknesses. In order to prevent the connecting plate 8 from being pushed by the raw material and causing the lifting plate 9 to tilt and deviate, a limiting rod 10 is arranged on the top of the lifting plate 9, and a limiting groove 11 is arranged on the top surface of the forming port 6. When the lifting plate 9 is lifted and lowered, the limiting rod 10 can move along the limiting groove 11, and the limiting groove 11 realizes the limitation of the limiting rod 10, thereby preventing the lifting plate 9 from deviating, ensuring the flatness of the top of the forming port 6, and thus ensuring the flatness of the top of the produced brick blank.

[0024] Preferably, it also includes a cutting mechanism, which includes a rotating motor 12 and a cutter 13. The rotating motor 12 is arranged on the outer wall of the extruder body 1, and its output shaft is connected to one end of the cutter 13. The molding port 6 is located on one side of the rotation path of the cutter 13.

[0025] After the raw material is extruded from the extrusion nozzle 2, the rotary motor 12 can be turned on to drive the cutter 13 to rotate. The cutter 13 can cut the extruded bricks, thereby cutting the bricks into block structures.

[0026] Preferably, the extrusion thickness adjustment mechanism also includes an airbag 14, an air pump 15 and an air pipeline 16, the airbag 14 is arranged on the side wall of the lifting plate 9, the air pump 15 is arranged on the outer wall of the extrusion nozzle 2, the air pipeline 16 connects the air pump 15 and the airbag 14, and the air pipeline 16 is a corrugated tube.

[0027] After the lifting plate 9 is moved to the designated position to adjust the height of the molding port 6, the air pump 15 can be turned on. The air pump 15 will deliver external air to the airbag 14 through the air pipe 16. After the airbag 14 is inflated, the gap between the lifting plate 9 and the side wall of the molding port 6 can be sealed to prevent the raw material from passing through the gap. Since the lifting plate 9 needs to be lifted and lowered, the air pipe 16 is set as a corrugated pipe to achieve the stretching of the pipe to ensure the delivery of air.

[0028] Preferably, the extrusion thickness adjustment mechanism further includes an air venting pipe 17 and an air valve 18 , wherein the air venting pipe 17 is connected to the air pipeline 16 , and the air valve 18 is disposed on the air venting pipe 17 .

[0029] When the position of the lifting plate 9 needs to be adjusted, the air valve 18 can be opened, and the air in the airbag 14 will be discharged to the outside through the air supply pipe 16 and the air release pipe 17. At this time, the airbag 14 will shrink to facilitate the smooth adjustment of the lifting plate 9.

[0030] Preferably, a feed hopper 19 is further included, a feed port 20 is disposed at the top of the extruder body 1 , and the bottom of the feed hopper 19 is connected to the feed port 20 .

[0031] After the dried sludge and raw materials are put into the feed hopper 19 , the raw materials can fall into the extruder body 1 through the feed port 20 .

[0032] Preferably, a sealing mechanism is also included, which includes an electric push rod 21 and a movable plate 22. The electric push rod 21 is arranged on the top surface and the inner wall of the extruder body 1, and its output shaft is connected to the movable plate 22. The movable plate 22 is located on one side of the feed port 20 and above the opening 5.

[0033] In order to ensure the vacuum environment inside the extruder body 1, the feed port 20 and the opening 5 are configured to be sealable, and the electric push rod 21 can drive the movable plate 22 to move. When the movable plate 22 moves to the bottom of the feed port 20 and one side of the opening 5, the opening 5 and the feed port 20 can be sealed, ensuring that the vacuum pump 4 can evacuate the inside of the extruder body 1.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly brick vacuum extrusion molding device, It is characterized in that It includes an extruder body, an extrusion nozzle, an auger, a vacuum pump and an extrusion thickness adjustment mechanism. An opening is provided on one side of the extruder body, the extrusion nozzle is provided at the opening, a molding port is provided on the side away from the opening, the auger is provided inside the extruder body and located on one side of the extrusion nozzle, and the vacuum pump is provided on the top of the extruder body; the extrusion thickness adjustment mechanism includes a hydraulic rod, a connecting plate, a lifting plate and a limiting rod. The lifting plate is located in the molding port, one side of which extends into the extrusion nozzle and is connected to the bottom surface of the connecting plate. The hydraulic rod is provided on the inner wall of the extrusion nozzle, and its output shaft is connected to the top surface of the connecting plate. A limiting groove is provided on the top surface of the molding port, the bottom end of the limiting rod is connected to the top surface of the lifting plate, and the top end thereof extends into the limiting groove.

2. The environmentally friendly brick vacuum extrusion forming device according to claim 1, It is characterized in that It also includes a cutting mechanism, which includes a rotating motor and a cutter. The rotating motor is arranged on the outer wall of the extruder body, and its output shaft is connected to one end of the cutter. The molding port is located on one side of the rotation path of the cutter.

3. The environmentally friendly brick vacuum extrusion molding device according to claim 1, It is characterized in that The extrusion thickness adjustment mechanism also includes an air bag, an air pump and an air pipeline. The air bag is arranged on the side wall of the lifting plate, the air pump is arranged on the outer wall of the extrusion nozzle, and the air pipeline connects the air pump and the air bag.

4. The environmentally friendly brick vacuum extrusion forming device according to claim 3, It is characterized in that The gas transmission pipeline is a corrugated pipe.

5. The environmentally friendly brick vacuum extrusion forming device according to claim 3, It is characterized in that The extrusion thickness adjustment mechanism also includes an air release pipe and an air valve. The air release pipe is connected to the air pipeline, and the air valve is arranged on the air release pipe.

6. The environmentally friendly brick vacuum extrusion molding device according to claim 1, It is characterized in that It also includes a feed hopper, a feed port is arranged at the top of the extruder body, and the bottom of the feed hopper is connected to the feed port.

7. The environmentally friendly brick vacuum extrusion molding device according to claim 6, It is characterized in that It also includes a sealing mechanism, which includes an electric push rod and a moving plate. The electric push rod is arranged on the top surface and the inner wall of the extruder body, and its output shaft is connected to the moving plate. The moving plate is located on one side of the feed port and above the opening.

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