Raw material mixing device for thermal insulation material production

Abstract

The utility model discloses a heat insulation material production raw material mixing device which comprises a mixing tank body, a feeding pipe and a discharging pipe are arranged at the upper end and the lower end of the mixing tank body respectively, and electromagnetic valves used for controlling feeding and discharging are installed on the feeding pipe and the discharging pipe. The device further comprises a mixing and stirring assembly arranged on the mixing tank body and used for assisting mixing and stirring, the mixing and stirring assembly comprises a supporting plate arranged above the mixing tank body, and the supporting plate and the mixing tank body are installed and fixed through a plurality of sets of supporting rods. According to the mixing device for the production raw materials of the thermal insulation materials, in the process of mixing and stirring the production raw materials of the thermal insulation materials by using the mixing device, the interior of the mixing tank body is pumped and pressed through transmission along with stirring and mixing; bubbles dissolved in the raw materials are more easily in a saturated state and separated out through the pressure pumping effect, so that the formation of the bubbles is reduced, and the thermal insulation performance of the processed thermal insulation material is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of thermal insulation materials, and particularly relates to a mixing device for raw materials of thermal insulation materials production. Background Technique

[0002] In the production of thermal insulation materials, the purpose of mixing raw materials is to make various raw materials fully and evenly distributed throughout the material, which helps to ensure the normal progress of subsequent processes (such as molding, foaming, etc.) and avoid product quality problems caused by uneven distribution of raw materials.

[0003] During the process of using a mixing device to mix raw materials in the production of thermal insulation materials, some raw materials will generate gas due to chemical reactions or physical changes during the mixing process. For example, when using a foaming agent, the foaming agent will decompose to generate gas under high temperature or specific conditions, thus forming bubbles in the material. The generation of bubbles may cause the phenomenon of bubble stringing, resulting in a decrease in the thermal insulation performance of the processed thermal insulation materials.

[0004] Therefore, there is an urgent need for a mixing device for raw materials of thermal insulation materials production to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a mixing device for raw materials of thermal insulation materials production to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A mixing device for raw materials of thermal insulation materials production, including a mixing tank body, the upper and lower ends of the mixing tank body are respectively provided with a feed pipe and a discharge pipe, electromagnetic valves for controlling the inlet and outlet are installed on the feed pipe and the discharge pipe, and further includes:

[0007] A mixing and stirring assembly arranged on the mixing tank body for assisting mixing and stirring. The mixing and stirring assembly includes a support plate arranged above the mixing tank body. The support plate and the mixing tank body are fixedly installed through multiple groups of support rods. A driving shaft is rotatably connected between the support plate and the mixing tank body. A screw blade is arranged inside the mixing tank body. One end of the driving shaft is fixed to the screw blade. A driving motor for driving the driving shaft is installed at the upper end of the support plate. A pumping and pressing assembly for pumping and pressing the inside of the mixing tank body during the stirring process is arranged at the upper end of the mixing tank body. A filtering assembly for filtering during the pumping and exhausting process is arranged on the support plate.

[0008] Two groups of pumping and pressing assemblies are provided, and the two groups of pumping and pressing assemblies are symmetrically arranged on both sides of the driving shaft.

[0009] The pumping and pressing assembly includes a pumping and pressing pipe fixedly connected to the upper end of the mixing tank body in communication. Two one-way valves are fixedly arranged inside the pumping and pressing pipe. A piston pipe is fixedly connected to the pumping and pressing pipe in communication. The piston pipe is located between the two one-way valves. A piston plate is connected to the piston pipe through a telescopic assembly.

[0010] The conduction directions of the two one-way valves are from the inside of the mixing tank body to the outside of the pumping and pressing pipe.

[0011] The telescopic assembly includes a telescopic rod slidably connected to one end of the piston pipe. One end of the telescopic rod is fixed to the piston plate. A spring is sleeved outside the telescopic rod. Two ends of the spring are respectively connected to the inner wall of the piston pipe and the piston plate. An extrusion assembly for extruding and driving the telescopic rod is arranged on the driving shaft.

[0012] The extrusion assembly includes a driving disc fixedly arranged outside the driving shaft. A plurality of hemispherical protrusions for abutting and driving one end of the telescopic rod are fixedly arranged in an annular array on the outside of the driving disc.

[0013] The filtering assembly includes an annular cover fixedly arranged at the lower end of the support plate. One end of the pumping and pressing pipe is in communication with the inside of the annular cover. An opening is formed on the outside of the annular cover. A filter screen is detachably installed on the opening in a clamping groove manner.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] During the process of using the mixing device of the present utility model to mix and stir the raw materials for producing the heat-insulating material, with the progress of the mixing and stirring, through transmission, the inside of the mixing tank body is pumped and pressed. Through the pumping and pressing action, the bubbles dissolved in the raw materials are more likely to reach the saturation state and precipitate, thereby reducing the formation of bubbles and ensuring the heat-insulating performance of the heat-insulating material after processing. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall external structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the mixing and stirring assembly of the present utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the support plate of the present utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the filtering assembly of the present utility model;

[0020] Figure 5 It is a schematic diagram of the structures of the pumping and pressing assembly, the telescopic assembly and the extrusion assembly of the present utility model.

[0021] In the figure: 101, mixing tank body; 102, feed pipe; 103, discharge pipe; 201, support plate; 202, support rod; 203, drive shaft; 204, auger blade; 205, drive motor; 301, suction and pressure pipe; 302, one-way valve; 303, piston pipe; 304, piston plate; 401, telescopic rod; 402, spring; 501, drive disc; 502, hemispherical protrusion; 601, annular cover; 602, opening; 603, filter screen. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , a raw material mixing device for producing thermal insulation materials provided by the present invention includes a mixing tank body 101. Feed pipes 102 and discharge pipes 103 are respectively arranged at the upper and lower ends of the mixing tank body 101. Solenoid valves for controlling the inlet and outlet of materials are installed on the feed pipes 102 and the discharge pipes 103. It further includes:

[0024] A mixing and stirring assembly arranged on the mixing tank body 101 for assisting in mixing and stirring. The mixing and stirring assembly includes a support plate 201 arranged above the mixing tank body 101. The support plate 201 and the mixing tank body 101 are fixedly installed through multiple groups of support rods 202. A drive shaft 203 is rotatably connected between the support plate 201 and the mixing tank body 101. An auger blade 204 is arranged inside the mixing tank body 101. One end of the drive shaft 203 is fixed to the auger blade 204. A drive motor 205 for driving the drive shaft 203 is installed at the upper end of the support plate 201. A suction and pressure assembly for sucking and pressing the inside of the mixing tank body 101 during the stirring process is arranged at the upper end of the mixing tank body 101. A filtering assembly for filtering during the suction and pressure exhaust process is arranged on the support plate 201;

[0025] It should be noted here that: during the process of using the mixing device to perform mixing and stirring operations on the raw materials for producing thermal insulation materials, as the mixing and stirring progresses, through transmission, the inside of the mixing tank body 101 is sucked and pressed. Through the suction and pressure action, the bubbles dissolved in the raw materials are more likely to reach the saturated state and precipitate, thereby reducing the formation of bubbles and ensuring the thermal insulation performance of the processed thermal insulation materials.

[0026] Two groups of suction and pressure assemblies are provided, and the two groups of suction and pressure assemblies are symmetrically arranged on both sides of the drive shaft 203;

[0027] It should be noted here that: By means of two sets of symmetrically arranged suction and pressure components, the effect of axial pressure is ensured.

[0028] The suction and pressure components include a suction and pressure pipe 301 fixedly connected to the upper end of the mixing tank body 101 in communication. Two one-way valves 302 are fixedly arranged inside the suction and pressure pipe 301. A piston pipe 303 is fixedly connected to the suction and pressure pipe 301 in communication. The piston pipe 303 is located between the two one-way valves 302. A piston plate 304 is connected to the piston pipe 303 through a telescopic component.

[0029] It should be noted here that: Through the mutual cooperation of the telescopic component and the extrusion component, the piston plate 304 reciprocates on the piston pipe 303 as the driving shaft 203 rotates. Since the conduction direction of the two one-way valves 302 is from the inside of the mixing tank body 101 to the outside of the suction and pressure pipe 301, through the reciprocating movement of the piston pipe 303, part of the gas inside the mixing tank body 101 is pumped into the inside of the suction and pressure pipe 301 and discharged into the inside of the annular cover 601 through extrusion from the suction and pressure pipe 301, so as to pump and press the inside of the mixing tank body 101.

[0030] The conduction direction of the two one-way valves 302 is from the inside of the mixing tank body 101 to the outside of the suction and pressure pipe 301.

[0031] It should be noted here that: Through the setting of the conduction direction, it is convenient to control the direction of air extraction.

[0032] The telescopic component includes a telescopic rod 401 slidably connected to one end of the piston pipe 303. One end of the telescopic rod 401 is fixed to the piston plate 304. A spring 402 is sleeved outside the telescopic rod 401. Two ends of the spring 402 are respectively connected to the inner wall of the piston pipe 303 and the piston plate 304. An extrusion component for extruding and driving the telescopic rod 401 is arranged on the driving shaft 203; The extrusion component includes a driving disk 501 fixed to the outside of the driving shaft 203. A plurality of hemispherical protrusions 502 for abutting and driving one end of the telescopic rod 401 are fixedly arranged in an annular array on the outside of the driving disk 501.

[0033] It should be noted here that: During the process of stirring and mixing operation by the rotation of the driving shaft 203, the driving disk 501 is driven to rotate. During the rotation of the driving disk 501, each group of hemispherical protrusions 502 abuts against one end of the telescopic rod 401 in sequence. Through the abutting and pushing action of the hemispherical protrusions 502 and one end of the telescopic rod 401 and the reset action of the spring 402, the piston plate 304 reciprocates on the piston pipe 303 as the driving shaft 203 rotates.

[0034] The filtering component includes an annular cover 601 fixed to the lower end of the support plate 201. One end of the suction and pressure pipe 301 communicates with the inside of the annular cover 601. An opening 602 is formed on the outer side of the annular cover 601, and a filter screen 603 is detachably installed on the opening 602 by means of a card slot.

[0035] It should be noted here that during the process of pumping out some of the gas inside the mixing tank 101 and discharging it into the inside of the annular cover 601, the gas entering the inside of the annular cover 601 diffuses out through the opening 602. During the diffusion process, the discharged gas is filtered by the filter screen 603 to avoid the impact of the discharged gas on the air.

[0036] Working principle: During the process of using the mixing device to mix and stir the raw materials for the production of thermal insulation materials, the raw materials to be stirred are conveyed into the inside of the mixing tank 101 through the feed pipe 102. After the conveying is completed, the solenoid valve on the feed pipe 102 is closed, and then the driving motor 205 is used to drive the auger blade 204 at one end of the driving shaft 203 to rotate. The raw materials inside the mixing tank 101 are mixed and stirred by the rotation of the auger blade 204. After the stirring process is completed, the stirred and mixed raw materials are discharged outwards through the discharge pipe 103.

[0037] During the process of performing the mixing and stirring operation by the rotation of the driving shaft 203, the driving disk 501 is driven to rotate. During the rotation of the driving disk 501, each hemispherical protrusion 502 sequentially abuts against one end of the telescopic rod 401. Through the abutting and pushing action of the hemispherical protrusion 502 against one end of the telescopic rod 401 and the resetting action of the spring 402, the piston plate 304 reciprocates on the piston tube 303 as the driving shaft 203 rotates. Since the conduction directions of the two check valves 302 are from the inside of the mixing tank 101 to the outside of the suction and pressure pipe 301, through the reciprocating movement of the piston tube 303, some of the gas inside the mixing tank 101 is pumped into the inside of the suction and pressure pipe 301 and discharged into the inside of the annular cover 601 through extrusion, performing suction and pressure on the inside of the mixing tank 101. Through the suction and pressure action, the bubbles dissolved in the raw materials are more likely to reach the saturated state and precipitate, thereby reducing the formation of bubbles and ensuring the thermal insulation performance of the processed thermal insulation materials.

[0038] During the process of pumping out some of the gas inside the mixing tank 101 and discharging it into the inside of the annular cover 601, the gas entering the inside of the annular cover 601 diffuses out through the opening 602. During the diffusion process, the discharged gas is filtered by the filter screen 603 to avoid the impact of the discharged gas on the air.

[0039] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A raw material mixing device for producing thermal insulation materials, comprising: A mixing tank body (101), wherein a feed pipe (102) and a discharge pipe (103) are respectively provided at the upper and lower ends of the mixing tank body (101), and solenoid valves for controlling the feed and discharge are installed on the feed pipe (102) and the discharge pipe (103); It is characterized by further comprising: A mixing and stirring assembly for assisting mixing and stirring is arranged on a mixing tank body (101), the mixing and stirring assembly comprising a support plate (201) arranged above the mixing tank body (101), the support plate (201) and the mixing tank body (101) being fixedly mounted via a plurality of groups of support rods (202), a drive shaft (203) being rotatably connected between the support plate (201) and the mixing tank body (101), an auger blade (204) being arranged inside the mixing tank body (101), one end of the drive shaft (203) being fixed to the auger blade (204), a drive motor (205) for driving the drive shaft (203) being mounted on the upper end of the support plate (201), a pumping and pressing assembly for pumping pressure inside the mixing tank body (101) during the mixing process being arranged on the upper end of the mixing tank body (101), and a filtering assembly for filtering during the pumping and exhausting process being arranged on the support plate (201).

2. A raw material mixing device for producing thermal insulation materials according to claim 1, characterized in that: The pumping and pressing components are provided in two groups, and the two groups of pumping and pressing components are symmetrically arranged on both sides of the driving shaft (203).

3. A raw material mixing device for producing thermal insulation materials according to claim 1, characterized in that: The pumping and pressure-extraction assembly comprises a pumping and pressure-extraction pipe (301) which is fixedly connected to the upper end of the mixing tank body (101), two groups of one-way valves (302) being fixedly arranged inside the pumping and pressure-extraction pipe (301), a piston tube (303) being fixedly connected to the pumping and pressure-extraction pipe (301), the piston tube (303) being located between the two groups of one-way valves (302), and a piston plate (304) being connected to the piston tube (303) via a telescopic assembly.

4. A raw material mixing device for producing thermal insulation materials according to claim 3, characterized in that: The conducting direction of the two sets of one-way valves (302) is from the inside of the mixing tank (101) to the outside of the pumping and pressure pipe (301).

5. The raw material mixing device for producing thermal insulation materials according to claim 3, characterized in that: The telescopic assembly comprises a telescopic rod (401) slidably connected to one end of a piston tube (303); one end of the telescopic rod (401) is fixed to a piston plate (304); a spring (402) is sleeved on the outer side of the telescopic rod (401); two ends of the spring (402) are respectively connected to the inner wall of the piston tube (303) and the piston plate (304); and an extrusion assembly for extruding the telescopic rod (401) is provided on the drive shaft (203).

6. A raw material mixing device for producing thermal insulation materials according to claim 5, characterized in that: The extrusion assembly comprises a drive disk (501) fixed on the outside of the drive shaft (203), and a plurality of groups of hemispherical protrusions (502) used for abutting against one end of the telescopic rod (401) for transmission are fixed to the outer annular array of the drive disk (501).

7. The raw material mixing device for producing thermal insulation materials according to claim 3, characterized in that: The filter assembly comprises an annular cover (601) fixed to the lower end of the support plate (201); one end of the suction and pressure tube (301) is communicated with the interior of the annular cover (601); an opening (602) is provided on the outer side of the annular cover (601); and a filter screen (603) is detachably mounted on the opening (602) by means of a slot.

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