CN219341011U - Powder feeding device for polyurethane sealant production - Google Patents

Abstract

The utility model discloses a powder feeding device for producing polyurethane sealant, which is characterized in that the bottom of a hopper is of a conical structure, a screw discharging paddle is arranged in the hopper, a drying box is arranged below the hopper, a conveyor belt is arranged in the drying box, a discharge hole of the hopper is positioned above a feed end of the conveyor belt, a microwave heating device is arranged in the drying box, a guide box is arranged at one end of the drying box, which is far away from the hopper, the discharge end of the conveyor belt extends into the guide box, an outlet is arranged at the bottom of the guide box, a screw feeder is connected below the outlet, the screw feeder comprises a screw and a shell, the shell is of a double-layer cavity structure, a cooling pipe is arranged in the cavity, and cooling liquid is filled in the cavity. The utility model can slowly discharge at a uniform speed, saves labor, saves time and labor, dries the powder to avoid caking, directly feeds the powder into the spiral feeder for feeding after drying the material, and avoids absorbing the moisture in the air again.

Description

Powder feeding device for polyurethane sealant production

Technical Field

The utility model relates to the technical field of powder feeding devices, in particular to a powder feeding device for polyurethane sealant production.

Background

The polyurethane sealant is a sealant containing polyurethane rubber and polyurethane prepolymer as main components. The polyurethane sealant is produced by using a certain amount of powder, such as carbon black or calcium carbonate and other powder materials, the water content of the raw materials of the powder materials is extremely sensitive, the powder materials are generally required to be dried before being fed, after the water content reaches the technological requirement, the powder materials are taken out and intermittently added into a glue making device, the powder materials are dried and fed and separated, and the water content in the air can be absorbed again in the conveying process, so that the product quality is affected; moreover, the traditional open type feeding mode has the advantages of high labor intensity, more operators and high labor cost, dust is easy to form in the feeding process, and the health of the operators is directly endangered, so that the environment is polluted.

Disclosure of Invention

The utility model aims to solve the technical problems and provide a powder feeding device for polyurethane sealant production.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a powder feeding device is used in polyurethane sealant production, includes the hopper, the hopper bottom is the toper structure, and its inside is equipped with spiral unloading oar, the hopper below is equipped with the stoving case, be equipped with the conveyer belt in the stoving case, the discharge gate of hopper is located conveyer belt feed end top, is equipped with microwave heating device in the stoving case, the one end of keeping away from the hopper of stoving case is equipped with the guide box, the discharge end of conveyer belt stretches into in the guide box, and guide box bottom is equipped with the export, and its export below is connected with screw feeder, and screw feeder includes screw and casing, and the casing is double-deck cavity structure, and the cavity is inside to be equipped with the cooling tube, and inside the leading to has the coolant liquid.

Further, a dustproof cloth cylinder is arranged at the bottom of the outlet of the hopper, and the bottom of the dustproof cloth cylinder is in contact with the conveyor belt.

Further, the section of the conveyor belt is of a V-shaped structure with a concave middle part, material blocking edges are arranged on two side edges, and the material blocking edges and the conveyor belt are identical in quality and are of an integrated structure.

Further, the two ends of the conveyor belt are provided with conveyor rollers, and the shape of each conveyor roller is matched with that of the conveyor belt.

Further, the screw rotates and sets up in the casing, and casing one end corresponds and is equipped with driving motor.

Further, the cooling pipe spiral disc is arranged in the shell, and the circulation direction of the cooling liquid in the cooling pipe is from one end close to the outlet of the spiral feeder to one end close to the inlet of the spiral feeder.

Further, the top of the drying box is provided with an exhaust pipe, a guide fan is arranged in the exhaust pipe, and a filter plate is arranged at the bottom of the exhaust pipe.

Compared with the prior art, the utility model has the advantages that: the amount of the materials entering the dryer is controlled through the spiral discharging paddles, the powder of the blocks can be smashed, the blockage of the hopper is avoided, the powder can be dried quickly through the microwave drying device, the blocks are extruded through the spiral feeder, the blocks are scattered and slowly fed into the polyurethane sealant production device at a uniform speed from the spiral feeder, the spiral feeder can cool the materials while feeding the materials, and the drying box is connected with the spiral feeder through the guide box in a sealing manner, so that the dried materials can be prevented from absorbing moisture in the air again, and become damp.

Drawings

FIG. 1 is a schematic structural view of a powder feeding device for producing polyurethane sealant.

Fig. 2 is a schematic longitudinal section structure of a conveyor belt of a powder feeding device for producing polyurethane sealant.

As shown in the figure: 1. a hopper; 2. a screw blanking paddle; 3. a drying box; 4. a conveyor belt; 5. a microwave heating device; 6. a guide box; 7. a screw feeder; 8. a propeller; 9. a housing; 10. a cooling tube; 11. a dustproof cloth cylinder; 12. blocking material edges; 13. a conveying roller; 14. and driving the motor.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; the specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In combination with the attached drawing, a powder feeding device for polyurethane sealant production comprises a hopper 1, hopper 1 bottom is the toper structure, and its inside is equipped with screw down paddle 2 (hopper 1 top is equipped with the support, is equipped with the motor on the support, drives screw down and rotates 2), hopper 1 below is equipped with stoving case 3, be equipped with conveyer belt 4 in the stoving case 3, the discharge gate of hopper 1 is located conveyer belt 4 feed end top, is equipped with microwave heating device 5 in the stoving case 3 (microwave heating device 5 is the drying device in the microwave dryer among the prior art), the one end that keeps away from hopper 1 of stoving case 3 is equipped with guide box 6, the discharge end of conveyer belt 4 stretches into in guide box 6, and guide box 6 bottom is equipped with the export, and its export below is connected with screw feeder 7, and screw feeder 7 includes screw 8 and casing 9, and casing 9 is double-deck cavity structure, and the inside cooling tube 10 that is equipped with of cavity, and inside is led with the coolant liquid.

The bottom of the outlet of the hopper 1 is provided with a dustproof cloth cylinder 11, and the bottom of the dustproof cloth cylinder 11 is in contact with the conveyor belt 4, so that powder is conveniently and directly dropped onto the conveyor belt, and the powder is prevented from falling and lifting dust.

The cross section of the conveyor belt 4 is of a V-shaped structure with a concave middle part, material blocking edges 12 are arranged on two side edges, and the material blocking edges 12 and the conveyor belt 4 are the same in material and are of an integrated structure, so that powder is located in the middle of the conveyor belt, and the powder is prevented from falling from two sides of the conveyor belt.

The conveyor belt 4 is provided with conveyor rollers 13 at both ends, and the shape of the conveyor rollers 13 matches that of the conveyor belt 4.

The screw 8 is rotatably arranged in the shell 9, one end of the shell 9 is correspondingly provided with a driving motor 14, and the driving motor 14 drives the screw 8 to rotate for feeding.

The cooling pipe 10 is spirally wound in the shell 9, and the flowing direction of the cooling liquid in the cooling pipe 10 is from one end close to the outlet of the spiral feeder 7 to one end close to the inlet of the spiral feeder 7.

The drying box 3 top is equipped with blast pipe 15, is equipped with guide fan 16 in the blast pipe 15, blast pipe 15 bottom filter, conveniently discharges the humid air in the drying box 3, and can stop the powder that floats in the drying box 3 to fly out along with humid air, and blast pipe 15 is equipped with a plurality ofly, and the guide direction of guide fan 16 of a plurality of blast pipes 15 kind is inside towards drying box 3, and is outside towards drying box 3.

In the concrete implementation of the utility model, the spiral blanking paddle rotates to drive powder to fall onto the conveyor belt in the drying box, the microwave heating device heats and dries the powder in the process that the conveyor belt conveys the powder to the guide box, then the powder enters the spiral feeder through the guide box, the powder is conveyed to polyurethane sealant production equipment through the rotation of the spiral blanking paddle, and in the feeding process of the spiral feeder, cooling liquid is continuously introduced into the cooling pipe to cool the material.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (7)

1. The utility model provides a polyurethane sealant production is with powder feeding device, includes hopper (1), its characterized in that: hopper (1) bottom is toper structure, and its inside is equipped with screw feed oar (2), hopper (1) below is equipped with stoving case (3), be equipped with conveyer belt (4) in stoving case (3), the discharge gate of hopper (1) is located conveyer belt (4) feed end top, is equipped with microwave heating device (5) in stoving case (3), the one end of keeping away from hopper (1) of stoving case (3) is equipped with guide box (6), the discharge end of conveyer belt (4) stretches into in guide box (6), guide box (6) bottom is equipped with the export, and its export below is connected with screw feeder (7), and screw feeder (7) are including screw (8) and casing (9), and casing (9) are double-deck cavity structure, and inside cooling tube (10) that are equipped with of cavity, inside coolant liquid.

2. The powder charging device for producing polyurethane sealant according to claim 1, wherein: the bottom of the outlet of the hopper (1) is provided with a dustproof cloth cylinder (11), and the bottom of the dustproof cloth cylinder (11) is contacted with the conveyor belt (4).

3. The powder charging device for producing polyurethane sealant according to claim 1, wherein: the section of the conveyor belt (4) is of a V-shaped structure with a concave middle part, material blocking ribs (12) are arranged on two side edges, and the material blocking ribs (12) and the conveyor belt (4) are the same in material and are of an integral structure.

4. A powder feeder for polyurethane sealant production according to claim 3, wherein: two ends of the conveyor belt (4) are provided with conveyor rollers (13), and the shape of the conveyor rollers (13) is matched with that of the conveyor belt (4).

5. The powder charging device for producing polyurethane sealant according to claim 1, wherein: the screw propeller (8) is rotatably arranged in the shell (9), and one end of the shell (9) is correspondingly provided with a driving motor (14).

6. The powder charging device for producing polyurethane sealant according to claim 1, wherein: the cooling pipe (10) is spirally coiled in the shell (9), and the flowing direction of the cooling liquid in the cooling pipe (10) is from one end close to the outlet of the spiral feeder (7) to one end close to the inlet of the spiral feeder (7).

7. The powder charging device for producing polyurethane sealant according to claim 1, wherein: an exhaust pipe (15) is arranged at the top of the drying box (3), a flow guide fan (16) is arranged in the exhaust pipe (15), and a filter plate is arranged at the bottom of the exhaust pipe (15).

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