A tire shredder
By installing an air curtain and atomization structure at the feed inlet of the tire shredder, the heat and dust problems generated during the cutting process of the tire shredder are solved, thus improving safety and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DOUBLE STAR LUOHE ZHONGYUAN MACHINERY
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-16
AI Technical Summary
Existing tire shredders generate a lot of heat and dust during the tire cutting process, posing safety hazards and environmental pollution problems.
An air curtain structure and an atomizing structure are installed at the feed inlet of the tire shredder. High-pressure air is used to form an air curtain to seal the feed inlet, water mist is sprayed to cool the blades, and dust is collected through a dust removal structure.
It effectively reduces blade temperature, prevents dust overflow, reduces fire risk and environmental pollution, and ensures continuous operation of the equipment.
Smart Images

Figure CN224360504U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tire shredders, and in particular relates to a tire shredder with an air mist cooling and heat dissipation system and an air curtain closed dust removal system. Background Technology
[0002] Tire shredders are used to crush waste tires for recycling and reuse. Currently, the most common type of tire shredder is the blade shear type. During the cutting process, the steel wires in the tire repeatedly rub against the tire material and the blades, generating a large amount of heat, reaching temperatures above 200℃. This can easily cause material burns or fires, posing significant safety hazards. Furthermore, tire rupture produces a large amount of carbon dust, and the broken cords in the tire generate a large amount of fiber debris that floats in the air, affecting the health of operators and polluting the environment. Therefore, this invention provides a tire shredder with an aerosol cooling and air curtain dust removal system. Utility Model Content
[0003] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects and advantages of the present application more readily apparent.
[0004] This utility model proposes a tire shredder that solves the technical problems of existing tire shredders generating a lot of heat during operation, posing safety hazards, and producing a lot of dust and debris. It features reduced blade temperature during tire shredder operation and prevents dust or debris generated during tire shredder operation from overflowing and causing environmental pollution.
[0005] This utility model discloses a tire shredder, including a feeding hopper; an air curtain structure disposed at the top of the feeding hopper, the air curtain structure including two air curtain pipes disposed at the two ends of the top edge of the feeding hopper, with multiple air outlets evenly distributed on the opposite side of the two air curtain pipes; two upper air guide plates disposed above each air outlet of the air curtain pipe; two lower air guide plates disposed below each air outlet of the air curtain pipe, with an airflow channel formed between each lower air guide plate and the upper air guide plate of the corresponding air curtain pipe; a dust removal structure disposed at the bottom of the frame body, the dust removal structure including multiple dust extraction hoods disposed at both ends of the tire shredder discharge port; multiple dust removal pipes, one end of each dust removal pipe being connected to a dust extraction hood; an atomizing structure disposed at the bottom of the feeding hopper, the atomizing structure including two water spray pipes disposed on the two bottom side walls of the feeding hopper, with multiple water spray holes spaced apart on each water spray pipe; multiple atomizing nozzles disposed on each water spray hole; and two baffles disposed above each water spray pipe.
[0006] In some embodiments, each upper air guide plate includes a first horizontal plate and a first bend, one end of the first bend is connected to the first horizontal plate, and the other end of the first bend bends upward and extends to the corresponding air curtain duct; each lower air guide plate includes a second horizontal plate and a second bend, one end of the second bend is connected to the second horizontal plate, and the other end of the second bend bends downward and extends to the corresponding air curtain duct.
[0007] In some embodiments, the second horizontal plate on the same air curtain duct is parallel to the first horizontal plate, and the distance between the second horizontal plate and the first horizontal plate on the same air curtain duct is 4-5 mm.
[0008] In some embodiments, each air vent has a square hole structure, and the spacing between adjacent air vents on each air curtain duct is 1.5-2 times the length of the square hole, and the height of each air vent is 1 / 5-1 / 2 of the inner diameter of the corresponding air curtain duct.
[0009] In some embodiments, one end of each air curtain duct is a closed structure, and the other end is connected to a high-pressure blower through an air inlet duct, and an air volume valve is installed on the air inlet duct.
[0010] In some embodiments, the dust hood has a cone-shaped structure.
[0011] In some embodiments, the water mist particles ejected by the atomizing nozzle have a diameter of 1-10 μm.
[0012] In some embodiments, one end of each water spray pipe is a closed structure, and the other end is connected to a branch water supply pipe, and each branch water supply pipe is equipped with a solenoid valve and a manual gate valve.
[0013] In some embodiments, one end of each water spray pipe is a closed structure, and the other end is connected to the same main water supply pipeline, and a solenoid valve and a manual gate valve are installed on the main water supply pipeline.
[0014] In some embodiments, the atomizing structure also includes a time relay electrically connected to the solenoid valve.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This utility model of a tire shredder features an air curtain structure at the feed inlet. High-pressure air is injected into the feed hopper through the air inlet, forming an air curtain above the shredder blades. This isolates the inside of the feed inlet from the outside environment, preventing dust or debris generated during tire shredder operation from overflowing and polluting the environment. Moreover, the air curtain enclosure does not affect the feeding process, ensuring continuous operation of the equipment. By incorporating an atomizing structure, water mist is generated to cool the blades. The atomizing nozzles reduce water consumption and prevent excessive wetting of the sheared material. A dust removal structure is also included, where dust not captured by the water mist is collected by a dust extraction hood, maintaining a negative pressure working state inside the tire shredder. This negative pressure dust removal process removes dust and heat simultaneously. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with their descriptions, serve to explain the present invention and do not constitute an undue limitation thereof. Wherein:
[0018] Figure 1 This is a schematic diagram of the tire shredder provided in an embodiment of the present utility model;
[0019] Figure 2 for Figure 1 A schematic diagram of the air curtain structure at point A in the middle;
[0020] Figure 3 This is a side view of the air curtain structure;
[0021] Figure 4 for Figure 1 Schematic diagram of the structure at point B;
[0022] Figure 5 A side view of the tire shredder provided in an embodiment of this utility model;
[0023] Figure 6 for Figure 5 A cross-sectional view of the feed hopper and crushing blades above the frame body along the AA direction;
[0024] In the attached diagram: 1. Frame body; 2. Feed hopper; 3. Crushing blade; 401. First air curtain duct; 4011. Air outlet; 402. Second air curtain duct; 403. Upper air guide plate; 4031. First horizontal plate; 4032. First bend; 404. Lower air guide plate; 4041. Second horizontal plate; 4042. Second bend; 405. High-pressure blower; 406. Air volume valve; 501. Water spray pipe; 502. Atomizing nozzle; 503. Baffle; 504. Manual gate valve; 505. Solenoid valve; 506. Time relay; 601. Dust extraction hood; 602. Dust removal duct. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0026] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "upper," "lower," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.
[0027] This utility model provides a tire shredder. Figure 1 This is a schematic diagram of one embodiment of the tire shredder of this utility model. (Reference) Figure 1 As shown, this tire shredder is a dual-shaft tire shredder, comprising at least a frame body 1, a feed hopper 2, shredding blades 3, an air curtain structure, an atomizing structure, and a dust removal structure. This tire shredder prevents the diffusion of tire cord fibers into the air, reducing airborne dust. The dust removal structure prevents the atomizing structure from affecting the material. The atomizing structure significantly reduces blade temperature, minimizing further friction caused by blade thermal expansion, effectively reducing the fire risk from friction during the crushing of flammable materials. Simultaneously, the water mist captures some dust, thus reducing dust and optimizing the working environment of the tire shredder. This tire shredder can be used for the retrofitting of existing equipment or directly for use in new equipment. Compared to similar products, it is simple to implement, low in cost, and highly reliable.
[0028] The tire shredder of this utility model has a feeding hopper 2 on the top of the frame body 1 for material to enter the tire shredder; and a crushing blade 3 is set below the feeding hopper 2 for shearing and crushing the material.
[0029] The air curtain structure of this tire shredder is located at the top of the feed hopper 2, as shown in the attached figure. Figure 2 and attached Figure 3As shown, the air curtain structure includes two air curtain pipes, two upper air guide plates 403, and two lower air guide plates 404. The two air curtain pipes are respectively set at the top edges of the feed hopper 2. One end of each air curtain pipe is a closed structure, and the other end is connected to a high-pressure blower 405 through an air inlet pipe. An air volume valve 406 for adjusting the air volume is set on the air inlet pipe. Square hole structure air outlets 4011 are evenly distributed on the opposite side of the two air curtain pipes. The high-pressure airflow ejected through the square hole structure air outlets 4011 forms an air curtain, which isolates the inside of the feed inlet from the outside world and seals the dust or debris generated when the tire shredder is working. The air outlets 4011 on the two air curtain pipes are arranged opposite each other. The distance between adjacent air outlets 4011 on each air curtain pipe is 1.5-2 times the length of the square hole. The height of each air outlet 4011 is 1 / 5-1 / 2 of the inner diameter of the corresponding air curtain pipe, and the maximum does not exceed 110mm. Two upper air guide plates 403 are respectively disposed above each air curtain duct outlet 4011. Each upper air guide plate 403 includes a first horizontal plate 4031 and a first bent portion 4032. One end of the first bent portion 4032 is connected to the first horizontal plate 4031, and the other end of the first bent portion 4032 bends upward and extends to the corresponding air curtain duct. The bending angle of the first bent portion 4032 is 15°-18°. The first horizontal plate 4031 is slightly inclined downward, and the angle between the first horizontal plate 4031 and the horizontal plane is 3°-5°. Two lower air guide plates 404 are respectively disposed above each air curtain duct outlet 4011. Below each air curtain duct vent 4011, an airflow channel is formed between each lower air guide plate 404 and the corresponding upper air guide plate 403 of the air curtain duct. Each lower air guide plate 404 includes a second horizontal plate and a second bend. One end of the second bend is connected to the second horizontal plate, and the other end of the second bend bends downward and extends to the corresponding air curtain duct. The bending angle of the second bend is 15°-18°. The second horizontal plate on the same air curtain duct is parallel to the first horizontal plate 4031, and the distance d between the second horizontal plate and the first horizontal plate 4031 on the same air curtain duct is 4-5mm.
[0030] In one preferred embodiment, the air curtain pipe includes a first air curtain pipe 401 located at one end of the top of the feed hopper 2 and a second air curtain pipe 402 located at the other end of the top of the feed hopper 2 and disposed opposite to the first air curtain pipe 401.
[0031] In one preferred embodiment, the upper air guide plate 403 is welded to the top of the air outlet 4011 of the air curtain duct, and the lower air guide plate 404 is welded to the bottom of the air outlet 4011 of the air curtain duct.
[0032] The dust removal structure of this utility model tire shredder is located at the bottom of the frame body 1. The dust removal structure includes multiple dust extraction hoods 601, which are respectively located at both ends of the tire shredder discharge port. Each dust extraction hood 601 has a cone-shaped structure, which can effectively reduce wind resistance. Multiple dust removal pipes 602 are respectively located at the dust extraction hoods 601. The other end of the dust removal pipes 602 is connected to the dust removal equipment, and the dust sealed inside the feed hopper 2 by the air curtain structure is drawn away by negative pressure.
[0033] The atomizing structure of this tire shredder is located at the bottom of the feed hopper 2, as shown in the attached diagram. Figure 4 As shown, the atomizing structure includes two water spray pipes 501, which are respectively set on the bottom two side walls of the feed hopper 2, located above the crushing blades 3. One end of each water spray pipe 501 is a closed structure, and the other end is connected to a water supply pipe. Multiple water spray holes are opened at intervals on each water spray pipe 501. Multiple atomizing nozzles 502 are respectively set on each water spray hole. The atomizing nozzles 502 are aligned with the tire shredder blades and are parallel to the cutting direction of the crushing blades 3. The atomizing nozzles 502 can reduce the amount of water used and avoid excessive wetting of the sheared material. Two baffles 503 are respectively set above each water spray pipe 501 to prevent the water spray pipes 501 and atomizing nozzles 502 from being impacted by the input material. Preferably, the atomizing nozzle 502 is an ultrasonic micro-atomizing nozzle 502. The water mist particles sprayed by the atomizing nozzle 502 have a diameter of 1-10 μm and are highly atomized. The dust is mixed and falls off by the atomizing nozzle 502, while the dust that is not captured by the water mist is collected by the dust extraction hood 601. In one embodiment, the cooling medium is water. The water supply to the water spray pipe 501 comes from the piped water supply network or is pumped by a water pump. A solenoid valve 505 and a manual gate valve 504 are installed on the water supply pipe. The solenoid valve 505 is electrically connected to a time relay 506 or other control element to control the water spraying time. The time relay 506 controls the water flow time of the solenoid valve 505. Openings are provided on both sides of the bottom of the feed hopper 2 for connecting the water spray pipe 501 to the water supply pipe.
[0034] In one preferred embodiment, the two water spray pipes 501 are controlled separately. One end of each water spray pipe 501 is a closed structure, and the other end is connected to a branch water supply pipe. Each branch water supply pipe is equipped with a solenoid valve 505 and a manual gate valve 504. The solenoid valve 505 is electrically connected to a time relay 506, and the time relay 506 controls the water flow time of the solenoid valve 505.
[0035] In one preferred embodiment, the two water spray pipes 501 are controlled in a unified manner. One end of each water spray pipe 501 is a closed structure, and the other end is connected to the same main water supply pipeline. A solenoid valve 505 and a manual gate valve 504 are installed on the main water supply pipeline. The solenoid valve 505 is electrically connected to a time relay 506, and the time relay 506 controls the water flow time of the solenoid valve 505.
[0036] Reference Appendix Figure 1 Appendix Figure 5 and attached Figure 6 As shown, the working process and principle of this utility model tire shredder are as follows: Material is added from the top of the feed hopper 2. The high-pressure blower 405 is started, and high-pressure air is introduced through the air curtain pipe. The square hole structure air outlet 4011 sprays high-pressure air into the feed hopper 2, thereby forming an air curtain above the crushing blades 3, isolating the inside of the feed inlet from the outside world, and preventing dust or debris generated during the operation of the tire shredder from overflowing and causing environmental pollution. At the same time, the dust extraction hood 601 extracts the dust and maintains the negative pressure working state inside the tire shredder. The material entering the tire shredder is crushed by the shearing action of the blades. The water supply is controlled by the manual gate valve 504 or by the solenoid valve 505. The water spray pipe 501 at the bottom of the feed hopper 2 continuously sprays water mist particles through the atomizing nozzle 502 to cool the blades.
[0037] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A tire shredder, characterized in that: include Feed hopper; An air curtain structure is installed at the top of the feed hopper. The air curtain structure includes two air curtain pipes, which are respectively installed at the two ends of the top edge of the feed hopper. Multiple air outlets are evenly distributed on the opposite side of the two air curtain pipes. Two upper air guide plates are respectively installed above the air outlet of each air curtain pipe. Two lower air guide plates are respectively installed below the air outlet of each air curtain pipe. An airflow channel is formed between each lower air guide plate and the upper air guide plate of the corresponding air curtain pipe. The dust removal structure is located at the bottom of the frame body. The dust removal structure includes multiple dust collection hoods, which are respectively located at both ends of the tire shredder discharge port; and multiple dust collection pipes, with one end of each dust collection pipe connected to a dust collection hood. The atomizing structure is located at the bottom of the feed hopper. The atomizing structure includes two water spray pipes, which are respectively located on the bottom side walls of the feed hopper. Each water spray pipe has multiple water spray holes spaced apart. Multiple atomizing nozzles are respectively located on each water spray hole. Two baffles are respectively located above each water spray pipe.
2. The tire shredder according to claim 1, characterized in that: Each upper air guide plate includes a first horizontal plate and a first bend, one end of the first bend is connected to the first horizontal plate, and the other end of the first bend bends upward and extends to the corresponding air curtain duct; each lower air guide plate includes a second horizontal plate and a second bend, one end of the second bend is connected to the second horizontal plate, and the other end of the second bend bends downward and extends to the corresponding air curtain duct.
3. The tire shredder according to claim 2, characterized in that: The second horizontal plate on the same air curtain duct is parallel to the first horizontal plate, and the distance between the second horizontal plate and the first horizontal plate on the same air curtain duct is 4-5mm.
4. The tire shredder according to claim 1, characterized in that: Each air vent is a square hole, and the spacing between adjacent air vents on each air curtain duct is 1.5-2 times the length of the square hole. The height of each air vent is 1 / 5-1 / 2 of the inner diameter of the corresponding air curtain duct.
5. The tire shredder according to claim 1, characterized in that: Each air curtain duct has a closed structure at one end and is connected to a high-pressure blower at the other end through an air inlet duct, and an air volume valve is installed on the air inlet duct.
6. The tire shredder according to claim 1, characterized in that: The dust extraction hood has a cone-shaped structure.
7. The tire shredder according to claim 1, characterized in that: The water mist particles sprayed from the atomizing nozzle have a diameter of 1-10 μm.
8. The tire shredder according to claim 1, characterized in that: Each water spray pipe has a closed structure at one end and is connected to a branch water supply pipe at the other end. Each branch water supply pipe is equipped with a solenoid valve and a manual gate valve.
9. The tire shredder according to claim 1, characterized in that: Each water spray pipe has a closed structure at one end and is connected to the same main water supply pipeline at the other end. The main water supply pipeline is equipped with a solenoid valve and a manual gate valve.
10. The tire shredder according to claim 8 or 9, characterized in that: The atomizing structure also includes a time relay, which is electrically connected to the solenoid valve.