Waterproof material melting device for constructional engineering
By designing a waterproof material melting device for construction engineering including a filter box, the problem that harmful odors in the prior art are difficult to prevent air from entering, effective filtration and purification of harmful gases are achieved, and the health of users is protected.
Patent Information
- Application Number
- CN202421091184.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The prior art lacks an air filtering structure, which makes it difficult to prevent the harmful odors generated during heating from entering the air, affecting the health of users.
A waterproof material melting device for construction engineering is designed, which includes a filter box and a connecting pipe, which can filter and purify the harmful gases generated when the material melts and prevent them from entering the air.
It effectively prevents harmful gases from entering the air, protects the health of users, and maintains the clean and efficient operation of the device.
Smart Images

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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of melting waterproof materials, in particular to a device for melting waterproof materials for construction engineering. Background Art
[0002] Measures taken from the building materials and structures to prevent water from penetrating certain parts of the building. Waterproofing is mostly used on roofs, underground buildings, underground parts of buildings, interior rooms and water storage structures that need waterproofing. According to the different measures and means taken, it is divided into two categories: material waterproofing and structural waterproofing. Material waterproofing relies on building materials to block the passage of water to achieve the purpose of waterproofing or increase the ability to resist leakage, such as roll waterproofing, film waterproofing, concrete and cement mortar rigid waterproofing, and clay, lime soil waterproofing. Structural waterproofing takes appropriate structural forms to block the passage of water to achieve the purpose of waterproofing, such as water stop strips and cavity structures.
[0003] The prior art lacks an air filtering structure, which makes it easy for the pungent odor generated during heating to be released into the external space, which can easily cause discomfort to users and has great limitations in use. Utility Model Content
[0004] The utility model aims to solve the technical problem of how to prevent harmful gases from entering the air, and proposes a device for melting waterproof materials for construction engineering. The technical solution of the utility model is as follows:
[0005] A waterproof material melting device for construction engineering includes: a bracket, a processing cylinder, an annular partition, a spiral heating tube, a motor, a stirring rod, a plurality of connecting rods, a plurality of scrapers, a feed pipe, a sealing ring, a mounting frame, a plurality of springs, a material distributor, a sealing cover, a discharge pipe, a rotary feed valve, four universal wheels, a brake, a filter box, a connecting pipe, and a controller. The axis of the processing cylinder is horizontally arranged, arranged above the bracket, and fixedly connected to the upper part of the bracket. The axis of the annular partition coincides with the axis of the processing cylinder, the annular partition is arranged inside the processing cylinder, and the left and right sides of the annular partition are respectively fixedly connected to the inner surfaces of the left and right sides of the processing cylinder. The spiral heating tube is arranged between the processing cylinder and the annular partition, and is fixedly connected to the inner wall of the processing cylinder. The motor shaft coincides with the axis of the processing cylinder, and the motor is arranged above the bracket, arranged on one side of the processing cylinder, and fixedly connected to the bracket. The axis of the stirring rod coincides with the axis of the processing barrel, the stirring rod runs through the left and right sides of the processing barrel, the stirring rod is arranged inside the annular partition, and is arranged on the side of the motor close to the processing barrel. One end of the stirring rod is fixedly connected to the motor shaft, and the stirring rod is rotationally connected to the left and right sides of the processing barrel, and its rotation axis coincides with the axis of the processing barrel. A number of connecting rods are symmetrically arranged, and a number of connecting rods are perpendicular to the stirring rods and are arranged on one side of the stirring rod. One end of the connecting rod is fixedly connected to the surface of one side of the stirring rod. A number of scrapers are respectively arranged at one end of the connecting rod away from the stirring rod, and a number of scrapers are fixedly connected to one end of a number of stirring rods away from the stirring rod, and contact the surface of the annular partition. The axis of the feed pipe is arranged vertically, the feed pipe runs through the processing barrel and the annular partition, is fixedly connected to the processing barrel, is fixedly connected to the annular partition, and is connected to the inside of the annular partition. The inside of the sealing ring is a frustum that is symmetrical up and down, the axis of the sealing ring coincides with the axis of the feed pipe, is arranged inside the feed pipe, and is fixedly connected to the inner wall of the feed pipe. The mounting frame is arranged horizontally, arranged inside the feed pipe, arranged below the sealing ring, and fixedly connected to the inner wall of the feed pipe. A plurality of springs are arranged vertically, arranged above the mounting frame, and arranged below the sealing ring, and the lower ends of the plurality of springs are fixedly connected to the mounting frame. The distributor is conical, and its axis is arranged vertically. The distributor is arranged above the plurality of springs, passes through the sealing ring, and the lower surface of the distributor is fixedly connected to the upper ends of the plurality of springs, and the upper side of the distributor is in contact with the sealing ring. The sealing cover is sleeved on the feed pipe, arranged above the processing cylinder, and is threadedly connected to the feed pipe. The discharge pipe is a curved pipe, and the discharge pipe is arranged below the processing cylinder, passes through the processing cylinder and the annular partition, and is fixedly connected to the processing cylinder and the annular partition, and the upper end of the discharge pipe is connected to the inside of the annular partition. The rotary feeding valve is arranged obliquely below the discharge pipe, arranged below the processing cylinder, and is fixedly connected to the lower end of the discharge pipe and connected to the discharge pipe. The controller is arranged above the bracket, fixedly connected to the bracket, electrically connected to the motor, electrically connected to the spiral heating tube, and electrically connected to the rotary feeding valve.
[0006] When the material needs to be melted, the staff moves the device to the corresponding position, then fixes the universal wheel, then opens the sealing cover, pours the material into the feed pipe, and the logistics passes through the sealing ring from the feed pipe, and falls onto the distributor through the sealing ring, pushing the distributor downward, and the distributor drives the spring to move downward. When the distributor moves downward, the distributor separates from the sealing ring, and the material enters the annular partition through the gap between the sealing ring and the distributor. After all the materials are poured in, the spring pushes the distributor upward until it contacts the sealing ring, then the staff tightens the sealing cover, and then the staff turns on the spiral heating tube and the motor through the controller, and the spiral heating tube begins to heat and melt the material in the annular partition until the material is completely melted. When the staff turns on the motor through the controller, the motor starts to rotate, the motor rotation drives the stirring rod to rotate, the stirring rod rotation drives the connecting rod to rotate, and the connecting rod rotation drives the scraper to rotate, thereby stirring the material in the partition so that the material can be evenly heated. During the melting process of the material, the harmful gas generated by the melting of the material will enter the filter box through the connecting pipe, and the harmful gas will be discharged into the air after being purified by the filter box. After the material is melted, the staff opens the rotary feeding valve through the controller. The staff can control the flow of the rotary feeding valve through the controller. After that, the liquid material enters the rotary feeding valve from the annular partition through the discharge pipe. After that, the liquid material flows to the designated position through the rotary feeding valve. When the material flows out of the annular partition, the scraper will hang off the residue on the inner wall of the annular partition, thereby keeping the annular partition clean.
[0007] Furthermore, a sealing rubber is provided on the surface of the distributor.
[0008] Sealing rubber is set on the surface of the distributor to prevent harmful gases from escaping from the feed pipe during heating.
[0009] Furthermore, a plurality of scrapers are inclined at a certain angle.
[0010] The scraper is tilted at a certain angle to transport the residue to the discharge pipe, making it easier to clean the residue.
[0011] Furthermore, the motor is fixedly connected to the bracket by bolts.
[0012] The motor is fixedly connected to the bracket by bolts to prevent the motor from moving during operation.
[0013] Furthermore, the inner surface of the annular partition is provided with fluororubber.
[0014] Fluororubber has the characteristics of high temperature resistance, corrosion resistance and ultra-cleanliness, and can keep the annular partition clean when the material is melted.
[0015] Furthermore, the universal wheel is provided with a brake.
[0016] Setting brakes on the universal wheels can fix the device at a specified position to facilitate subsequent work.
[0017] Beneficial effects of the utility model:
[0018] When the material needs to be melted, the staff moves the device to the corresponding position, then fixes the universal wheel, then opens the sealing cover, pours the material into the feed pipe, and the logistics passes through the sealing ring from the feed pipe, and falls onto the distributor through the sealing ring, pushing the distributor downward, and the distributor drives the spring to move downward. When the distributor moves downward, the distributor separates from the sealing ring, and the material enters the annular partition through the gap between the sealing ring and the distributor. After all the materials are poured in, the spring pushes the distributor upward until it contacts the sealing ring, then the staff tightens the sealing cover, and then the staff turns on the spiral heating tube and the motor through the controller, and the spiral heating tube begins to heat and melt the material in the annular partition until the material is completely melted. When the staff turns on the motor through the controller, the motor starts to rotate, the motor rotation drives the stirring rod to rotate, the stirring rod rotation drives the connecting rod to rotate, and the connecting rod rotation drives the scraper to rotate, thereby stirring the material in the partition so that the material can be evenly heated. During the melting process of the material, the harmful gas generated by the melting of the material will enter the filter box through the connecting pipe. The harmful gas will be discharged into the air after being purified by the filter box, thereby preventing the harmful gas from entering the air and damaging the health of the staff. After the material is melted, the staff opens the rotary feeding valve through the controller. The staff can control the flow of the rotary feeding valve through the controller. After that, the liquid material enters the rotary feeding valve from the annular partition through the discharge pipe. The staff can control the rotary feeding valve through the controller to control the flow of the liquid material, thereby achieving accurate feeding. When the material flows out of the annular partition, the scraper will hang off the residue on the inner wall of the annular partition, thereby keeping the annular partition clean. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0020] Figure 1 It is the front view of the utility model;
[0021] Figure 2 This is an enlarged view of the feed pipe of the utility model.
[0022] Explanation of the reference numerals in the accompanying drawings: 1. bracket; 2. processing cylinder; 3. annular partition; 4. spiral heating tube; 5. motor; 501. stirring rod; 502. connecting rod; 503. scraper; 6. feed pipe; 601. sealing ring; 602. mounting frame; 603. spring; 604. distributor; 605. sealing cover; 7. discharge pipe; 701. rotary feeding valve; 8. universal wheel; 9. filter box; 901. connecting pipe; 10. controller. DETAILED DESCRIPTION
[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-Figure 2The utility model provides a waterproof material melting device for construction engineering, including: a bracket 1, a processing cylinder 2, an annular partition 3, a spiral heating tube 4, a motor 5, a stirring rod 501, a plurality of connecting rods 502, a plurality of scrapers 503, a feed pipe 6, a sealing ring 601, a mounting frame 602, a plurality of springs 603, a distributor 604, a sealing cover 605, a discharge pipe 7, a rotary feed valve 701, four universal wheels 8, a brake 801, a filter box 9, a connecting pipe 901, and a controller 10. The axis of the processing cylinder 2 is horizontally arranged, arranged above the bracket 1, and fixedly connected to the upper part of the bracket 1. The axis of the annular partition 3 coincides with the axis of the processing cylinder 2, the annular partition 3 is arranged inside the processing cylinder 2, and the left and right sides of the annular partition 3 are respectively fixedly connected to the inner surfaces of the left and right sides of the processing cylinder 2. The spiral heating tube 4 is arranged between the processing cylinder 2 and the annular partition 3, and is fixedly connected to the inner wall of the processing cylinder 2. The motor 5 has a rotating shaft that coincides with the axis of the processing cylinder 2. The motor 5 is disposed above the bracket 1, disposed on one side of the processing cylinder 2, and fixedly connected to the bracket 1. The axis of the stirring rod 501 coincides with the axis of the processing cylinder 2. The stirring rod 501 penetrates the left and right sides of the processing cylinder 2. The stirring rod 501 is disposed inside the annular partition 3, disposed on the side of the motor 5 close to the processing cylinder 2. One end of the stirring rod 501 is fixedly connected to the rotating shaft of the motor 5. The stirring rod 501 is rotationally connected to the left and right sides of the processing cylinder 2, and its rotation axis coincides with the axis of the processing cylinder 2. A plurality of connecting rods 502 are symmetrically disposed, and a plurality of connecting rods 502 are perpendicular to the stirring rod 501, disposed on one side of the stirring rod 501, and one end of the connecting rod 502 is fixedly connected to the surface of one side of the stirring rod 501. A plurality of scrapers 503 are respectively disposed at one end of the connecting rod 502 away from the stirring rod 501, and a plurality of scrapers 503 are fixedly connected to one end of a plurality of stirring rods 501 away from the stirring rod 501, and contact the surface of the annular partition 3. The axis of the feed pipe 6 is vertically arranged, and the feed pipe 6 passes through the processing cylinder 2 and the annular partition 3, is fixedly connected to the processing cylinder 2, is fixedly connected to the annular partition 3, and is in communication with the inside of the annular partition 3. The inside of the sealing ring 601 is a frustum that is symmetrical up and down, and the axis of the sealing ring 601 coincides with the axis of the feed pipe 6. The sealing ring 601 is arranged inside the feed pipe 6 and is fixedly connected to the inner wall of the feed pipe 6. The mounting frame 602 is horizontally arranged, arranged inside the feed pipe 6, arranged below the sealing ring 601, and fixedly connected to the inner wall of the feed pipe 6. A plurality of springs 603 are vertically arranged, arranged above the mounting frame 602, arranged below the sealing ring 601, and the lower ends of the plurality of springs 603 are fixedly connected to the mounting frame 602. The distributor 604 is conical, and its axis is vertically arranged. The distributor 604 is arranged above the plurality of springs 603, passes through the sealing ring 601, and the lower surface of the distributor 604 is fixedly connected to the upper ends of the plurality of springs 603, and the upper side surface of the distributor 604 contacts the sealing ring 601. The sealing cover 605 is sleeved on the feed pipe 6, arranged above the processing cylinder 2, and is threadedly connected to the feed pipe 6.The discharge pipe 7 is a curved pipe, which is arranged below the processing cylinder 2, passes through the processing cylinder 2 and the annular partition 3, is fixedly connected to the processing cylinder 2, is fixedly connected to the annular partition 3, and the upper end of the discharge pipe 7 is communicated with the inside of the annular partition 3. The rotary feeding valve 701 is arranged obliquely below the discharge pipe 7, is arranged below the processing cylinder 2, is fixedly connected to the lower end of the discharge pipe 7, and is communicated with the discharge pipe 7. The controller 10 is arranged above the bracket 1, is fixedly connected to the bracket 1, is electrically connected to the motor 5, is electrically connected to the spiral heating tube 4, and is electrically connected to the rotary feeding valve 701.
[0025] When the material needs to be melted, the staff moves the device to the corresponding position, then fixes the universal wheel 8, then opens the sealing cover 605, pours the material into the feed pipe 6, and the logistics passes through the sealing ring 601 from the feed pipe 6, and falls onto the distributor 604 through the sealing ring 601, pushing the distributor 604 to move downward, and the distributor 604 drives the spring 603 to move downward. When the distributor 604 moves downward, the distributor 604 is separated from the sealing ring 601, and the material enters the annular partition 3 through the gap between the sealing ring 601 and the distributor 604. After all the materials are poured in, the spring 603 pushes the distributor 604 to move upward until it contacts the sealing ring 601, then the staff tightens the sealing cover 605, and then the staff turns on the spiral heating tube 4 and the motor 5 through the controller 10, and the spiral heating tube 4 starts to heat and melt the material in the annular partition 3 until the material is completely melted. When the staff turns on the motor 5 through the controller 10, the motor 5 starts to rotate, and the rotation of the motor 5 drives the stirring rod 501 to rotate, and the rotation of the stirring rod 501 drives the connecting rod 502 to rotate, and the rotation of the connecting rod 502 drives the scraper 503 to rotate, thereby stirring the material in the partition so that the material can be evenly heated. In the process of melting the material, the harmful gas generated by the melting of the material will enter the filter box 9 through the connecting pipe 901, and the harmful gas will be discharged into the air after being purified by the filter box 9. After the material is melted, the staff turns on the rotary feeding valve 701 through the controller 10. The staff can control the flow of the rotary feeding valve 701 through the controller 10, and then the liquid material enters the rotary feeding valve 701 from the annular partition 3 through the discharge pipe 7, and then the liquid material flows to the specified position through the rotary feeding valve 701. When the material flows out of the annular partition 3, the scraper 503 will scrape off the residue on the inner wall of the annular partition 3, thereby keeping the annular partition 3 clean.
[0026] The surface of the distributor 604 is provided with sealing rubber.
[0027] A sealing rubber is provided on the surface of the distributor 604 to prevent harmful gases from escaping from the feed pipe 6 during the heating process.
[0028] The scrapers 503 are inclined at a certain angle.
[0029] The scraper 503 is tilted at a certain angle, so that the residue can be transported to the discharge pipe 7, which is convenient for cleaning the residue.
[0030] The motor 5 is fixedly connected to the bracket 1 by bolts.
[0031] The motor 5 is fixedly connected to the bracket 1 by bolts to prevent the motor 5 from moving during operation.
[0032] The inner surface of the annular partition 3 is provided with fluororubber.
[0033] Fluororubber has the characteristics of high temperature resistance, corrosion resistance and ultra-cleanliness, and can keep the annular partition 3 clean when the material is melted.
[0034] The universal wheel 8 is provided with a brake 801 .
[0035] The brake 801 is arranged on the universal wheel 8 so as to fix the device at a designated position to facilitate subsequent work.
[0036] Working principle: When the material needs to be melted, the staff moves the device to the corresponding position, then fixes the universal wheel 8 through the brake 801, then opens the sealing cover 605, pours the material into the feed pipe 6, and the logistics passes through the sealing ring 601 from the feed pipe 6, and falls on the distributor 604 through the sealing ring 601, pushing the distributor 604 to move downward, and the distributor 604 drives the spring 603 to move downward. When the distributor 604 moves downward, the distributor 604 is separated from the sealing ring 601, and the material enters the annular partition 3 through the gap between the sealing ring 601 and the distributor 604. After all the materials are poured in, the spring 603 pushes the distributor 604 to move upward until it contacts the sealing ring 601, then the staff tightens the sealing cover 605, and then the staff turns on the spiral heating tube 4 and the motor 5 through the controller 10, and the spiral heating tube 4 starts to heat and melt the material in the annular partition 3 until the material is completely melted. When the staff turns on the motor 5 through the controller 10, the motor 5 starts to rotate, and the rotation of the motor 5 drives the stirring rod 501 to rotate, and the rotation of the stirring rod 501 drives the connecting rod 502 to rotate, and the rotation of the connecting rod 502 drives the scraper 503 to rotate, thereby stirring the material in the partition so that the material can be evenly heated. In the process of melting the material, the harmful gas generated by the melting of the material will enter the filter box 9 through the connecting pipe 901, and the harmful gas will be discharged into the air after being purified by the filter box 9, thereby preventing the harmful gas from entering the air. After the material is melted, the staff opens the rotary feeding valve 701 through the controller 10. The staff can control the flow of the rotary feeding valve 701 through the controller 10, and then the liquid material enters the rotary feeding valve 701 from the annular partition 3 through the discharge pipe 7, and then the liquid material flows to the specified position through the rotary feeding valve 701. When the material flows out of the annular partition 3, the scraper 503 will hang up the residue on the inner wall of the annular partition 3, thereby keeping the annular partition 3 clean.
[0037] The above are only preferred embodiments of the present invention and are 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. A waterproof material melting device for construction engineering, characterized in that: include: A support (1), a processing cylinder (2), an annular partition (3), a spiral heating tube (4), a motor (5), a stirring rod (501), a plurality of connecting rods (502), a plurality of scrapers (503), a feed pipe (6), a sealing ring (601), a mounting frame (602), a plurality of springs (603), a distributor (604), a sealing cover (605), a discharge pipe (7), a rotary feed valve (701), four universal wheels (8), a filter box (9), a connecting pipe (901), and a controller (10); the axis of the processing cylinder (2) is horizontally arranged above the support (1) and fixedly connected to the upper part of the support (1); the axis of the annular partition (3) coincides with the axis of the processing cylinder (2) The annular baffle (3) is arranged inside the processing cylinder (2), and the left and right sides of the annular baffle (3) are respectively fixedly connected to the left and right inner surfaces of the processing cylinder (2); the spiral heating tube (4) is arranged between the processing cylinder (2) and the annular baffle (3), and is fixedly connected to the inner wall of the processing cylinder (2); the rotating shaft of the motor (5) coincides with the axis of the processing cylinder (2), the motor (5) is arranged above the bracket (1), arranged on one side of the processing cylinder (2), and is fixedly connected to the bracket (1); the axis of the stirring rod (501) coincides with the axis of the processing cylinder (2), the stirring rod (501) passes through the left and right sides of the processing cylinder (2), and the stirring rod (501) is arranged inside the annular partition (3), and is arranged on a side of the motor (5) close to the processing cylinder (2); one end of the stirring rod (501) is fixedly connected to the rotating shaft of the motor (5); the stirring rod (501) is rotatably connected to the left and right sides of the processing cylinder (2), and its rotation axis coincides with the axis of the processing cylinder (2); a plurality of connecting rods (502) are symmetrically arranged, and a plurality of connecting rods (502) are perpendicular to the stirring rod (501) and are arranged on one side of the stirring rod (501); one end of the connecting rod (502) is fixedly connected to the surface of one side of the stirring rod (501); a plurality of scrapers (503) are respectively arranged on the connecting rods (502) away from the processing cylinder (2); At one end of the stirring rod (501), a plurality of scrapers (503) are fixedly connected to one end of the plurality of stirring rods (501) away from the stirring rod (501), and are in contact with the surface of the annular partition (3); the axis of the feed pipe (6) is arranged vertically, the feed pipe (6) passes through the processing cylinder (2) and the annular partition (3), is fixedly connected to the processing cylinder (2), is fixedly connected to the annular partition (3), and is communicated with the inside of the annular partition (3); the inside of the sealing ring (601) is a vertically symmetrical frustum, the axis of the sealing ring (601) coincides with the axis of the feed pipe (6), is arranged inside the feed pipe (6), and is fixedly connected to the inner wall of the feed pipe (6);The mounting frame (602) is horizontally arranged, arranged inside the feed pipe (6), arranged below the sealing ring (601), and fixedly connected to the inner wall of the feed pipe (6); the plurality of springs (603) are vertically arranged, arranged above the mounting frame (602), and arranged below the sealing ring (601), and the lower ends of the plurality of springs (603) are fixedly connected to the mounting frame (602); the distributor (604) is conical, and its axis is vertically arranged. The distributor (604) is arranged above the plurality of springs (603) and passes through the sealing ring (601). The lower surface of the distributor (604) is fixedly connected to the upper ends of the plurality of springs (603), and the upper side surface of the distributor (604) is in contact with the sealing ring (601); the sealing cover (605) is sleeved on the feed pipe (6), and is arranged The discharge pipe (7) is a curved pipe disposed above the processing cylinder (2), penetrates the processing cylinder (2) and the annular partition (3), is fixedly connected to the processing cylinder (2), is fixedly connected to the annular partition (3), and the upper end of the discharge pipe (7) is communicated with the inside of the annular partition (3); the rotary feed valve (701) is disposed obliquely below the discharge pipe (7), disposed below the processing cylinder (2), is fixedly connected to the lower end of the discharge pipe (7), and is communicated with the discharge pipe (7); the controller (10) is disposed above the bracket (1), is fixedly connected to the bracket (1), is electrically connected to the motor (5), is electrically connected to the spiral heating tube (4), and is electrically connected to the rotary feed valve (701). ; 2. A waterproof material melting device for construction engineering according to claim 1, characterized in that: The surface of the distributor (604) is provided with sealing rubber.
3. A waterproof material melting device for construction engineering according to claim 1, characterized in that: The plurality of scrapers (503) are inclined at a certain angle.
4. A waterproof material melting device for construction engineering according to claim 1, characterized in that: The motor (5) is fixedly connected to the bracket (1) via bolts.
5. The waterproof material melting device for construction engineering according to claim 1, characterized in that: The inner surface of the annular partition (3) is provided with fluororubber.
6. A waterproof material melting device for construction engineering according to claim 1, characterized in that: The universal wheel (8) is provided with a brake (801).