Oil-containing scrap steel pre-cutting treatment device
Patent Information
- Application Number
- CN202521977841.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-15
AI Technical Summary
人工清洗操作麻烦，需要对废钢多个表面操作，简易喷淋装置多采用常温低压水流，难以剥离顽固油污，且清洗后废钢表面残留水分会影响后续切割
左右交替倾斜导料板形成的曲折路径，强制废钢在处理箱内翻滚，彻底解决了传统喷淋中废钢单面清洗 的问题，使废钢表面均能被高压高温水流覆盖，顽固油污去除率大幅提升，避免了切割时有毒烟气的过量产生及焦渣附着；高压水流的冲击力结合高温对油污的软化作用，相比常温低压喷淋，油污剥离速度提升，降低了劳动强度。独立的排液腔与排液管使得清洗污水及时排出，不会在导料板上残留，防止废钢被污水中的油污再次污染。
Smart Images
Figure CN224712584U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scrap steel processing, and specifically to a pre-treatment device for oily scrap steel before cutting. Background Technology
[0002] In the process of scrap steel recycling, contaminants such as mineral oil and lubricating oil adhering to the surface of oily scrap steel, if directly introduced into the cutting process without effective treatment, will cause the oil to volatilize and produce toxic fumes due to the high temperature during cutting. The coke residue formed by the combustion of grease will also adhere to the surface of the cutting tools. Manual cleaning is cumbersome, requiring operation on multiple surfaces of the scrap steel. Simple spraying devices often use low-pressure water at room temperature, which is insufficient to remove stubborn oil stains, and the residual moisture on the scrap steel surface after cleaning will affect subsequent cutting.
[0003] Therefore, it is necessary to design a simple pre-treatment device for cutting oily scrap steel. Utility Model Content
[0004] This invention provides a pre-treatment device for cutting oily scrap steel to solve the problems of the prior art.
[0005] The objective of this utility model can be achieved through the following technical solution: A pre-treatment device for cutting oily scrap steel includes: a feeding conveyor belt, a treatment box, a discharge conveyor belt, and a drying component. The treatment box has alternating inclined guide plates on the left and right sides. Each set of inclined guide plates has baffles at its front and rear ends. The bottom of the inclined guide plates has mesh holes. A partition is fixed inside the treatment box, correspondingly fixed to the lower end of each set of inclined guide plates. The partition, inclined guide plates, and treatment box form a drainage chamber. The treatment box has a drainage pipe connecting to the drainage chamber. A support is provided at the lower end of each set of partitions. Spray heads are spaced apart at the lower end of the support. Each set of spray heads is connected to a high-pressure water pump via a pipe. A high-temperature washing water inlet pipe is connected to one side of the high-pressure water pump. The feeding conveyor belt is located at the feeding end of the treatment box, the discharge conveyor belt is located at the discharge end of the treatment box, and the drying component is located on the discharge conveyor belt.
[0006] In a further improvement, the drying assembly includes a fixed frame, an upper air guide, a lower air guide, a front air guide, and an air guide. The upper air guide is fixed to the fixed frame and located at the upper end of the discharge conveyor belt. The lower air guide is fixed to the fixed frame and located at the lower end of the discharge conveyor belt. The front air guide is fixed to the fixed frame and located on the front baffle of the discharge conveyor belt. The air guide is fixed to the fixed frame and located on the rear baffle of the discharge conveyor belt. The upper air guide, lower air guide, front air guide, and air guide are all connected to a hot air generator through air ducts. Air inlets are distributed on both the front baffle and the rear baffle.
[0007] In a further improvement, the feeding conveyor belt and the discharging conveyor belt are stainless steel mesh belts, and the inclined guide plate is a stainless steel mesh plate.
[0008] As a further improvement, a liquid storage tank is provided at the end of each set of drain pipes.
[0009] Compared with existing technologies, the advantages of this utility model's pretreatment device for oily scrap steel cutting are as follows: The tortuous path created by the alternating tilting guide plates forces the scrap steel to tumble within the processing tank, completely solving the problem of single-sided cleaning in traditional spraying. This ensures that the entire surface of the scrap steel is covered by high-pressure, high-temperature water flow, significantly improving the removal rate of stubborn oil stains and preventing excessive generation of toxic fumes and coke adhesion during cutting. The impact of the high-pressure water flow combined with the softening effect of the high temperature on the oil stains increases the oil removal speed compared to low-pressure spraying at room temperature, reducing labor intensity. Independent drainage chambers and pipes ensure timely discharge of cleaning wastewater, preventing residue on the guide plates and avoiding recontamination of the scrap steel by oil in the wastewater. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 2 This is a partially enlarged structural schematic diagram of the present invention. Figure 3 This is a schematic diagram of a partial structure of the present invention. In the diagram, 1-feed conveyor belt, 2-processing box, 21-inclined guide plate, 22-baffle, 23-mesh, 24-partition, 25-drainage chamber, 26-drainage pipe, 3-discharge conveyor belt, 31-front baffle, 32-rear baffle, 33-air inlet, 4-drying assembly, 41-fixed frame, 42-upper air guide, 43-front air guide, 44-rear air guide, 45-hot air generator, 46-lower air guide, 5-liquid storage tank, 61-support, 62-spray head, 63-pipe, 64-high pressure water pump, 65-high temperature washing water inlet pipe. Detailed Implementation
[0011] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0012] The following describes the embodiments and appendices. Figures 1-3 The technical solution of this utility model will be further described below.
[0013] Example 1 A pre-treatment device for oily scrap steel includes: a feeding conveyor belt 1, a treatment box 2, a discharge conveyor belt 3, and a drying assembly 4. The treatment box 2 has alternating inclined guide plates 21 arranged on the left and right sides. Each set of inclined guide plates 21 has baffles 22 at its front and rear ends. The bottom of each inclined guide plate 21 has mesh holes 23. A partition 24 is fixed inside the treatment box 2, correspondingly fixed to the lower end of each set of inclined guide plates 21. The partition 24, the inclined guide plates 21, and the treatment box 2 form a drainage chamber 2. 5. The processing tank 2 is provided with a drain pipe 26 that connects to the drain chamber 25. Each set of partitions 24 is provided with a support 61 at the lower end. Spray heads 62 are arranged at intervals at the lower end of the support 61. Each set of spray heads 62 is connected to a set of high-pressure water pumps 64 through a pipe 63. A high-temperature washing water inlet pipe 65 is connected to one side of the high-pressure water pumps 64. The feeding conveyor belt 1 is set at the feeding end of the processing tank 2. The discharging conveyor belt 3 is set at the discharging end of the processing tank 2. The drying component 4 is set on the discharging conveyor belt 3.
[0014] like Figures 1-3 As shown, the working principle of this utility model is as follows: Oily scrap steel is first smoothly conveyed into the processing box 2 by the feeding conveyor belt 1. Inside the processing box, inclined guide plates 21 are arranged alternately on the left and right sides, creating a tortuous downward path. After entering the processing box, the scrap steel slides down along the first inclined guide plate. When it reaches the lower end of the guide plate, it falls into the next inclined guide plate in the opposite direction due to gravity. During this process, the scrap steel naturally tumbles, exposing every area of its surface and avoiding cleaning dead zones caused by a fixed orientation. At the same time, baffles 22 at the front and rear ends of the inclined guide plates prevent the scrap steel from falling off the front and rear sides of the guide plates during tumbling and sliding, ensuring that the scrap steel always moves along the preset path.
[0015] The partition 24 at the lower end of each set of inclined guide plates 21, together with the inclined guide plates and the inner wall of the treatment tank, forms a drainage chamber 25, providing an independent space for sewage collection. The bracket 61 at the lower end of the partition is used to fix the spray head 62. During operation, the high-pressure water pump 64 draws high-temperature washing water through the high-temperature washing water inlet pipe 65. The high temperature can soften stubborn oil stains and reduce the adhesion of oil stains. After being pressurized, it is delivered to the spray head 62 through the pipe 63. The high-pressure, high-temperature water jets sprayed from the spray head form a dense jet beam that directly acts on the surface of the tumbling scrap steel. The impact force of the high-pressure water jet can peel off the softened oil stains, while the tumbling action of the scrap steel allows the water jet to repeatedly wash its various surfaces. Even the oil stains in the crevices will be carried out under the dual action of water jet impact and scrap steel tumbling. The wastewater containing oil and impurities after cleaning will seep downwards through the mesh 23 at the bottom of the inclined guide plate 21, enter the drainage chamber 25 below, and then be discharged through the drainage pipe 26 on the treatment box that connects to the drainage chamber, thus preventing wastewater from accumulating on the guide plate and causing secondary pollution to the scrap steel. The cleaned scrap steel slides out of the treatment box along the last inclined guide plate and enters the discharge conveyor belt 3, and is then transported to the drying component 4 for moisture removal, ultimately forming clean scrap steel free of oil and moisture, ready for the subsequent cutting process.
[0016] The tortuous path created by the alternating tilting guide plates forces the scrap steel to tumble within the processing tank, completely solving the problem of single-sided cleaning in traditional spraying. This ensures that the entire surface of the scrap steel is covered by high-pressure, high-temperature water flow, significantly improving the removal rate of stubborn oil stains and preventing excessive generation of toxic fumes and coke adhesion during cutting. The impact of the high-pressure water flow combined with the softening effect of the high temperature on the oil stains increases the oil removal speed compared to low-pressure spraying at room temperature, reducing labor intensity. Independent drainage chambers and pipes ensure timely discharge of cleaning wastewater, preventing residue on the guide plates and avoiding recontamination of the scrap steel by oil in the wastewater.
[0017] As a further preferred embodiment, the drying assembly 4 includes a fixed frame 41, an upper air guide 42, a lower air guide 46, a front air guide 43, and an air guide 44. The upper air guide 42 is fixed to the fixed frame 41 and located at the upper end of the discharge conveyor belt 3. The lower air guide 46 is fixed to the fixed frame 41 and located at the lower end of the discharge conveyor belt 3. The front air guide 43 is fixed to the fixed frame 41 and located on the front baffle 31 on the front side of the discharge conveyor belt 3. The air guide 44 is fixed to the fixed frame 41 and located on the rear baffle 32 on the rear side of the discharge conveyor belt 3. The upper air guide 42, lower air guide 46, front air guide 43, and air guide 44 are all connected to a hot air generator 45 through air ducts. Air inlets 33 are distributed on both the front baffle 31 and the rear baffle 32.
[0018] As the cleaned scrap steel enters the drying unit area via the discharge conveyor belt, hot air is simultaneously blown out from the four-way air vents, which quickly removes moisture from the surface of the scrap steel. The drying unit operates synchronously with the discharge conveyor belt, eliminating the need for additional shutdowns for drying. It can form a continuous production line with the upstream cleaning process, significantly improving overall pre-processing efficiency.
[0019] As a further preferred embodiment, the feed conveyor belt 1 and the discharge conveyor belt 3 are stainless steel mesh belts, and the inclined guide plate 21 is a stainless steel mesh plate. Stainless steel has excellent corrosion resistance and can effectively resist corrosion from detergents and sewage.
[0020] As a further preferred embodiment, each set of drain pipes 26 is provided with a storage tank 5 at its end. The cleaning wastewater containing oil and impurities discharged from each drain chamber 25 in the treatment tank is collected in the storage tank through the drain pipe.
[0021] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A pretreatment device for cutting oily scrap steel, characterized in that, include: The system comprises a feeding conveyor belt, a processing box, a discharging conveyor belt, and a drying assembly. The processing box contains alternating inclined guide plates arranged on the left and right sides. Each set of inclined guide plates has baffles at its front and rear ends. The bottom of each inclined guide plate has mesh openings. A partition is fixed inside the processing box, corresponding to the lower end of each set of inclined guide plates. The partitions, inclined guide plates, and processing box form a drainage chamber. A drainage pipe connecting to the drainage chamber is provided on the processing box. A support is provided at the lower end of each set of partitions, and spray heads are spaced apart at the lower end of the support. Each set of spray heads is connected to a high-pressure water pump via a pipe. A high-temperature washing water inlet pipe is connected to one side of each high-pressure water pump. The feeding conveyor belt is located at the feeding end of the processing box, and the discharging conveyor belt is located at the discharging end of the processing box. The drying assembly is mounted on the discharging conveyor belt.
2. The pretreatment device for cutting oily scrap steel according to claim 1, characterized in that, The drying assembly includes a fixed frame, an upper air guide, a lower air guide, a front air guide, and an air guide. The upper air guide is fixed to the fixed frame and located at the upper end of the discharge conveyor belt. The lower air guide is fixed to the fixed frame and located at the lower end of the discharge conveyor belt. The front air guide is fixed to the fixed frame and located on the front baffle of the discharge conveyor belt. The air guide is fixed to the fixed frame and located on the rear baffle of the discharge conveyor belt. The upper air guide, lower air guide, front air guide, and air guide are all connected to a hot air generator through air ducts. Air inlets are distributed on both the front baffle and the rear baffle.
3. The pretreatment device for cutting oily scrap steel according to claim 1, characterized in that, The feeding conveyor belt and the discharging conveyor belt are stainless steel mesh belts, and the inclined guide plate is a stainless steel mesh plate.
4. The pretreatment device for cutting oily scrap steel according to claim 1, characterized in that, Each set of drain pipes is equipped with a liquid storage tank at the end.