Physical descaling system and method for wire and bar samples

Abstract

The invention provides a physical descaling system and method for a metal wire and bar sample. The system comprises a jet descaling box, a nozzle, an air pipeline, a medium pipeline, a pump set, a collecting box, a filtering water tank and a water distributor. According to the method, the surface of the descaling target sample is physically ground / scoured through mixed jet flow, so that the effect of completely removing an oxide layer on the surface of the descaling target sample is achieved, the problems of corrosivity and environmental pollution caused by chemical methods such as acid pickling are avoided, and the efficient jet flow descaling energy efficiency is achieved; meanwhile, the processes of dynamic separation of a descaled mixed medium, solid particulate matter recycling, water body filtering, purifying and recycling and real-time medium supplementing are considered, in addition, the waiting process that a descaled target sample enters and exits from the system is avoided in a double-group arrangement mode, and finally the purposes of energy conservation, economy and high efficiency are achieved; the descaling device can adapt to changes of different working conditions and requirements, and a reliable solution is provided for industrial application of descaling of various metal wires and bars.

Description

Technical Field

[0001] The invention relates to the technical field of physical descaling of metal surfaces, and in particular to a physical descaling system and method for metal wire and rod samples. Background Art

[0002] In the pressure processing production process of metal materials, especially steel wire rods, after continuous casting billet heating and hot rolling sizing, it must go through a long cooling stage exposed to the air. During this period, the high-temperature metal material surface reacts chemically with the oxygen and moisture in the air, gradually forming a dense / multi-layered iron oxide, commonly known as "scale".

[0003] These scales have a huge impact on the subsequent processing of metal materials. Most post-processing processes, such as stamping / rolling / painting, must completely remove the scales before processing to ensure that the surface quality of the finished product after post-processing meets the standards. In the process of manufacturing wire rods in the metallurgical industry, in order to ensure the internal quality of the wire rods, each batch of wire rods must be sampled frequently during the production process (i.e., a certain length of sample must be cut), the scales must be removed from the samples, and the surface cracks / inclusions and other morphologies must be manually evaluated for quality, so as to determine whether the batch of wire rods can enter the downstream precision production link.

[0004] This type of wire rod is very common. For example, the raw materials of steel cord / wire cable / high-strength bolts must be manually inspected after sampling and descaling to ensure qualified quality and qualified product rate. Based on this, in order to clearly obtain the subcutaneous appearance of wire rod samples, the production personnel currently use chemical pickling, which uses acid immersion / dissolution to quickly remove the oxide layer on the surface of the sample, that is, the scale. However, this method, due to the change of wire rod material / the change of wire rod material composition, leads to unstable surface cleanliness of the pickled finished product. The surface quality of many varieties after pickling is very poor, and it is basically impossible to clearly judge by the naked eye, which affects the efficiency of quality inspection. At the same time, during the sample pickling process, due to the strong corrosiveness of the acid, it is very harmful to the steel structure plant of the production plant / the body of the operator, etc., which seriously affects the safety of production operations. At the same time, the waste liquid generated after pickling is difficult to recycle and cannot be discharged at will. It is a typical hazardous waste.

[0005] Steel is a basic material widely used in many fields such as construction, transportation, machinery and equipment. Its quality is directly related to product performance and life safety. It is very important to conduct comprehensive and accurate inspection of steel. In order to fully meet the quality inspection needs of the production site, while taking into account human needs such as environmental protection / pollution-free / good operating environment, it is necessary to find a new pickling alternative process to effectively solve the descaling problem of samples.

[0006] At present, gas sandblasting machine / dry shot blasting machine are mainly used for preliminary and simple surface treatment. However, these two processes also have typical defects and shortcomings:

[0007] (1) Gas shot peening: compressed air is used as the power to drive the particles to hit / grind the surface to remove the scales. However, the large amount of waste gas / dust generated by compressed air will also seriously affect the health of production personnel and cause problems such as pneumoconiosis.

[0008] (2) Dry shot blasting: The centrifugal projectile method is used to drive the particles to fly and hit the surface to remove the scales. However, the depth of the pits after the particles hit is too large, the scale removal rate is not high, and the dust is serious. It is very easy to generate sparks and cause fires.

[0009] The prior art also discloses a solution of descaling and cleaning by high-pressure water jet sandblasting, but the recycling of the medium cannot be achieved and cannot meet the continuous production needs, and further improvement is needed. Summary of the invention

[0010] The purpose of the present invention is to provide a physical descaling solution in view of the deficiencies existing in the above-mentioned background technology, which adopts a mixed jet method to physically grind / scour the sample surface so as to completely remove the oxide layer, while taking into account the dynamic separation of the mixed medium after descaling / solid particle recovery circulation / water filtration and purification recycling / real-time medium replenishment, etc., so as to achieve the goal of energy-saving / economical / efficient descaling.

[0011] In order to achieve the above-mentioned object, the present invention provides a physical descaling system for metal wire and bar samples, including a spray descaling box, a nozzle, an air pipeline, a medium pipeline, a pump group, a collection box, a filtered water tank, and a water distributor;

[0012] The spray descaling box corresponds to the inlet and outlet channel of the descaling target sample, the nozzle is arranged inside the spray descaling box, and is used to spray a mixed jet to the descaling target sample, and the nozzle is connected to the air pipeline and the medium pipeline at the same time, the air pipeline is connected to the compressed air interface, and the medium pipeline is connected to the medium pumping pump;

[0013] The bottom of the spray descaling box is provided with a box outlet, the collecting box is arranged below the spray descaling box and is connected with the box outlet, the collecting box is also provided with a medium output port and a sewage outlet, the medium output port is connected with the medium pumping pump, the sewage outlet is connected with the filter water tank, and the filter water tank is used to filter and purify the sewage;

[0014] The filtered water tank is connected to the water distributor through a water pipe and a water pump. The water distributor is used to distribute the filtered water into multiple branches for independent delivery to various locations in the system that require water replenishment.

[0015] Furthermore, a slope is provided at the bottom of the collection box, and the slope is used to allow the mixed abrasive medium to be quickly deposited at the bottom of the collection box.

[0016] Furthermore, two filtered water tanks are arranged adjacent to each other, including a first filtered water tank and a second filtered water tank, the first filtered water tank is connected to the sewage outlet, and the second filtered water tank is connected to the water distributor.

[0017] Furthermore, the branch of the water distributor is connected to multiple positions inside the spray descaling tank, the bottom of the collection tank and the medium pumping pump.

[0018] Furthermore, a water supply pipe and a water supply interface are provided, and the water supply pipe is connected with the water supply interface and the filtered water tank.

[0019] Furthermore, it also includes a sand replenishing bucket, which is connected to the collection box through a sand replenishing pipe. The sand replenishing pipe is provided with a sand replenishing solenoid valve, and the bottom of the collection box is also provided with a sand amount sensor for measuring the sand level height.

[0020] Furthermore, it also includes a sewage receiving tank, which is arranged at the lowest point of the system. A sewage pump is arranged in the sewage receiving tank, and the sewage pump is connected to the sewage pipe.

[0021] Furthermore, at least two of the spray descaling boxes are provided, and the number of the nozzles, the air pipelines, the medium pipelines, the collecting box, the medium pumping pump, and the water distributor are matched.

[0022] Furthermore, each of the air pipelines is provided with an air solenoid valve; the sewage in each of the collection boxes is collected and filtered in the filter water tank; and the water pipes are connected to each of the water distributors via a multi-way solenoid valve.

[0023] The present invention also provides a physical descaling method for a metal wire rod sample, using the physical descaling system for a metal wire rod sample as described above, comprising the following steps:

[0024] S1, placing the descaling target sample into a preset position of the spray descaling box;

[0025] S2, the air solenoid valve and the medium pumping pump are turned on, and compressed air and mixed abrasive medium are respectively delivered to the nozzle through the air pipeline and the medium pipeline to form a mixed jet to physically grind / scour the surface of the descaling target sample;

[0026] S3, the descaled material enters the collection box, and the mixed abrasive medium gathers at the bottom of the collection box under the action of gravity, and the sewage floats on the upper part of the collection box. The mixed abrasive medium enters the medium pipeline under the action of the medium pumping pump and circulates again. The sewage flows into the first filter water tank and the second filter water tank through the sewage outlet. After filtration, the water is transported to the water distributor by the water pump and the water pipe, and then distributed into multiple branches by the water distributor and transported to different positions of the spray descaling box or the collection box, so that the filtered water is circulated again;

[0027] S4, when the sand amount sensor detects that the mixed abrasive medium at the corresponding position is insufficient, the corresponding sand replenishment solenoid valve is opened to replenish the mixed abrasive medium to the system; when the liquid level sensor of the second filter water tank detects that the water amount is insufficient, the control module controls the water replenishment pump to replenish water.

[0028] The above scheme of the present invention has the following beneficial effects:

[0029] The physical descaling system and method for metal wire rod samples provided by the present invention physically grinds / scours the surface of the descaling target sample through a mixed jet composed of compressed gas and mixed abrasive media, thereby achieving the effect of completely removing the oxide layer on the surface of the descaling target sample, avoiding the corrosiveness and environmental pollution problems caused by chemical methods such as pickling, and not only has high-efficiency jet descaling energy efficiency, but also takes into account the dynamic separation of the mixed medium after descaling / solid particle recovery cycle / water filtration and purification recirculation / medium real-time replenishment process. In addition, the dual-group setting method avoids the waiting process of the descaling target sample entering and exiting the system, and ultimately achieves the purpose of energy saving / economy / high efficiency;

[0030] The present invention can significantly reduce the waste of abrasive and water resources, reduce production costs, and improve the descaling effect and product quality. It also has high flexibility and can adapt to changes in different working conditions and needs, providing a reliable solution for various industrial applications.

[0031] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a system schematic diagram of the present invention.

[0033] [Description of Reference Numerals]

[0034] 1-Spray descaling box; 2-Nozzle; 3-Air pipeline; 4-Medium pipeline; 5-Collection box; 6-Compressed air interface; 7-Medium pumping pump; 8-Box outlet; 9-Medium output port; 10-Sewage outlet; 11-First filtered water tank; 12-Second filtered water tank; 13-Water pipe; 14-Water pump; 15-Water distributor; 16-Sand replenishment bucket; 17-Sand replenishment pipe; 18-Sand replenishment solenoid valve; 19-Sand quantity sensor; 20-Sewage collection tank; 21-Sewage pump; 22-Sewage pipe; 23-Air solenoid valve; 24-Three-way solenoid valve; 25-Water replenishment interface; 26-Water replenishment pipe. DETAILED DESCRIPTION

[0035] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0036] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.

[0037] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure, and the illustrations only show the components related to the present disclosure rather than the number, shape and size of the components in actual implementation. The type, quantity and proportion of each component in actual implementation may be changed at will, and the component layout type may also be more complicated. In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the aspects described can be practiced without these specific details.

[0038] Embodiment 1:

[0039] like Figure 1 As shown, embodiment 1 of the present invention provides a physical descaling system for metal wire rod samples, including a jet descaling box 1, a nozzle 2 for generating a jet, an air pipeline 3 for providing compressed air to the nozzle 2, a medium pipeline 4 for providing a mixed abrasive medium to the nozzle 2, a pump group, a collection box 5 for collecting materials, and a filter water tank for filtering sewage. Among them, the jet descaling box 1 is a box with a certain volume, corresponding to the inlet and outlet channels of the descaling target sample, and is also provided with a channel (or manhole) for manual maintenance and repair. The nozzle 2 is arranged inside the jet descaling box 1, and is aligned with the placement position of the descaling target sample, and is used to spray a mixed jet to descaling the descaling target sample. Among them, the nozzle 2 is connected to the air pipeline 3 and the medium pipeline 4 at the same time. Under the action of the air compressor (not shown in the figure), the compressed air enters the air pipeline 3 and the nozzle 2 position through the compressed air interface 6. Under the action of the medium pumping pump 7, the mixed abrasive medium also enters the nozzle 2 position, and finally sprays from the nozzle 2 to the descaling target sample to achieve the purpose of physical descaling.

[0040] It should be noted that the descaling mentioned in this embodiment is the removal of the oxide layer on the surface of the metal wire rod sample. The metal wire rod sample is a long strip sample made of metal material, with a circular, square, rectangular or round tube cross-section, and a length usually between 200 and 1000 mm. Taking a circular cross-section as an example, the cross-sectional diameter is usually between 5 mm and 200 mm. The axial shape of the long strip sample can be a straight line throughout, or an arc, etc.

[0041] In this embodiment, a box outlet 8 is provided at the bottom of the jet descaling box 1. The collecting box 5 is provided below the jet descaling box 1 and is connected to the box outlet 8 of the jet descaling box 1, and is used to collect the material discharged from the jet descaling box 1. The collecting box 5 is also provided with two outlets, namely a medium outlet 9 and a sewage outlet 10. Among them, the medium outlet 9 is connected to the medium pumping pump 7, and then connected to the nozzle 2 through the medium pipeline 4, so as to supply the mixed abrasive medium to the nozzle 2, so as to realize the recycling and reuse of the mixed abrasive medium. The sewage outlet 10 is connected to the filter water tank, and the sewage is introduced into the filter water tank for purification and separation of the sewage.

[0042] As a preferred embodiment, in this embodiment, a slope is provided at the bottom of the collecting box 5, which guides the mixed abrasive medium so that it can be quickly deposited at the bottom of the collecting box 5 and fully separated from the sewage, thereby ensuring the recycling effect of the mixed abrasive medium.

[0043] In this embodiment, the filter water tank filters the sewage through a filter screen, etc., so as to separate impurities in the sewage, obtain filtered water and recycle it. As a preferred embodiment, two filter water tanks are arranged adjacent to each other, namely a first filter water tank 11 and a second filter water tank 12, that is, a double-channel filtration method is used to improve the filtering effect. The second filter water tank 12 is connected to the water distributor 15 through a water pipe 13 and a water pump 14, and the water distributor 15 distributes the filtered water into multiple branches through the water pipe 13, and independently transports it to each location in the system that needs water replenishment to ensure that the descaling production requirements are met.

[0044] Specifically in this embodiment, the positions that require water replenishment include multiple positions inside the jet descaling box 1, the bottom of the collection box 5 (near the medium output port 9), and the inside of the medium pumping pump 7, so as to ensure that the descaling target sample is rinsed after descaling, and the mixed abrasive medium is transported in the form of slurry.

[0045] It is understandable that during the continuous descaling process of the system, the water level in the second filtered water tank 12 will continue to be consumed as the operation progresses, that is, the total water volume of the system will continue to decrease. Therefore, water can be replenished from an external water source. The external water source is driven by a water replenishment pump (not shown in the figure) and replenishes the second filtered water tank 12 through a water replenishment interface 25 and a water replenishment pipe 26. A liquid level sensor can be provided in the second filtered water tank 12 to monitor the water volume to reflect the total water volume of the system.

[0046] At the same time, during the continuous descaling process of the system, the mixed abrasive medium will continue to be consumed as the operation progresses, so that the total amount of the mixed abrasive medium in the system will continue to decrease. Therefore, in this embodiment, a sand replenishment bucket 16 is also provided, and the sand replenishment bucket 16 is connected to the collection box 5 through a sand replenishment pipe 17. A sand replenishment solenoid valve 18 is provided on the sand replenishment pipe 17, which can allow the sand replenishment pipe 17 to be connected when it is opened, so that the mixed abrasive medium in the sand replenishment bucket 16 can be replenished to the collection box 5 under the action of gravity. Among them, a sand quantity sensor 19 is also provided at the bottom of the collection box 5, and the height of the mixed abrasive medium at the bottom of the collection box 5 is detected by the sand quantity sensor 19, so that when the mixed abrasive medium is insufficient during the continuous operation, the sand replenishment solenoid valve 18 is opened by the control module to replenish the mixed abrasive medium. Of course, a sand quantity sensor 19 can also be provided in the sand replenishment bucket 16 to remind the operator to replenish when the mixed abrasive medium in the sand replenishment bucket 16 is insufficient.

[0047] In addition, during the operation of the entire system, there may always be water leakage. Therefore, as a preferred implementation, in this embodiment, a sewage receiving tank 20 is set at the lowest point of the system, and a sewage pump 21 is set in the sewage receiving tank 20. The sewage is discharged and recovered from the sewage pipe 22 to the outside of the system through the sewage pump 21, so as to avoid sewage being spilled on the work site.

[0048] Considering that the system is in continuous operation, it takes a certain amount of time for the descaling target sample to enter the jet descaling box 1 and exit the jet descaling box 1 after descaling is completed, especially for large wire rod samples. The system cannot descale the descaling target sample during this period of time. Therefore, in order to further improve the efficiency, in this embodiment, a pair of jet descaling boxes 1 are set in the system, and the nozzle 2, air pipeline 3, medium pipeline 4, collection box 5, medium pumping pump 7, water distributor 15, etc. are also arranged in a matching manner, so that when one of the jet descaling boxes 1 is loading and unloading the descaling target sample, the other jet descaling box 1 can perform descaling operations, thereby improving the efficiency of the production line.

[0049] It should be noted that in this embodiment, an air solenoid valve 23 is provided on each of the pair of air pipes 3. When one of the air solenoid valves 23 is opened, the other air solenoid valve 23 is closed, so as to achieve the purpose of switching the air to the nozzles 2 of different jet descaling boxes 1. The mixed abrasive medium is directly completed by opening and closing the medium pumping pumps 7 corresponding to the two jet descaling boxes 1.

[0050] At the same time, the two collecting boxes 5 can respectively collect the materials after descaling in the two jet descaling boxes 1, and the wastewater is collected in the first filter water tank 11 and the second filter water tank 12 for filtration in turn. The water pipe 13 is connected to the two water distributors 15 through the three-way solenoid valve 24 to switch to the corresponding water distributor 15 to distribute water to the jet descaling box 1 that is undergoing descaling operation.

[0051] In summary, the physical descaling system for metal wire rod samples provided in this embodiment physically grinds / scours the surface of the descaling target sample through a mixed jet composed of compressed gas and mixed abrasive media, thereby achieving the effect of completely removing the oxide layer on the surface of the descaling target sample, avoiding the corrosiveness and environmental pollution problems caused by chemical methods such as pickling. It not only has high-efficiency jet descaling energy efficiency, but also takes into account the dynamic separation of the mixed medium after descaling / solid particle recovery circulation / water filtration and purification recycling / real-time medium replenishment process. In addition, the dual-group setting is used to avoid the waiting process of the descaling target sample entering and exiting the system, ultimately achieving the goals of energy saving / economy / efficiency.

[0052] Embodiment 2:

[0053] Embodiment 2 of the present invention provides another physical descaling system for metal wire rod samples. The main difference from Embodiment 1 is that two groups of jet descaling boxes 1 are opened at the same time, and the parameters such as the compressed air pressure of the nozzle 2 in each group of jet descaling boxes 1 are different, and the average particle size of the mixed abrasive medium is also different, so as to perform two descaling processes on the descaling target sample.

[0054] For example, the particle size of the mixed abrasive medium in the previous jet descaling box 1 can be larger than the particle size of the mixed abrasive medium in the subsequent jet descaling box 1, so that the descaling target sample first undergoes a coarse descaling process to remove large pieces of loose scales, and then undergoes a fine descaling process to remove small pieces of tight scales, so as to further improve the degree of scale removal.

[0055] Among them, the conveying line of the descaling target sample can be set accordingly so that the descaling target sample first enters the previous jet descaling box 1, then exits from the previous jet descaling box 1 and enters the next jet descaling box 1, and finally exits from the next jet descaling box 1 and continues to be conveyed to the subsequent process, thereby ensuring the orderliness of multiple descaling of the descaling target sample.

[0056] Embodiment 3:

[0057] Embodiment 3 of the present invention provides a physical descaling method for a metal wire rod sample, which uses a physical descaling system for a metal wire rod sample provided in Embodiment 1 or Embodiment 2, and includes the following steps:

[0058] S1, a round steel rod sample with a length of 300-500 mm and an outer diameter of 6.5 mm-150 mm is used as a descaling target sample, and the descaling target sample is placed in a preset position of the spray descaling box 1;

[0059] S2, the air solenoid valve 23 and the medium pumping pump 7 are turned on, and compressed air and mixed abrasive medium are respectively delivered to the nozzle 2 through the air pipeline 3 and the medium pipeline 4 to form a mixed jet to physically grind / scour the surface of the descaling target sample;

[0060] S3, the descaled material enters the collecting box 5, and the mixed abrasive medium gathers at the lower part of the collecting box 5 under the action of gravity, and the sewage floats on the upper part of the collecting box 5. The mixed abrasive medium enters the medium pipeline 4 under the action of the medium pumping pump 7 and circulates again, and the sewage flows into the first filtered water tank 11 and the second filtered water tank 12 through the sewage outlet 10. After filtration, the water is transported to the water distributor 15 by the water pump 14 and the water pipe 13, and then distributed into multiple branches by the water distributor 15 and transported to different positions of the spray descaling box 1 or the collecting box 5, so that the filtered water is circulated again;

[0061] S4, when the sand amount sensor 19 detects that the mixed abrasive medium at the corresponding position is insufficient, the corresponding sand replenishment solenoid valve 18 is opened to replenish the mixed abrasive medium to the system; when the liquid level sensor of the second filter water tank 12 detects that the water amount is insufficient, the control module controls the water replenishment pump to replenish water.

[0062] Among them, corresponding algorithms can be set in the control module, which can adjust operating parameters according to historical data and real-time feedback to improve the reliability of system operation.

[0063] Considering the growing demand for efficient, stable and environmentally friendly mixed jet descaling technology, in practical applications, this process can significantly reduce the waste of abrasive and water resources, reduce production costs, and improve descaling effect and product quality. In addition, this process is highly flexible and can adapt to changes in different working conditions and needs, providing a reliable solution for various industrial applications.

[0064] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A physical descaling system for metal wire and bar samples, characterized in that: It includes spray descaling box, nozzle, air pipeline, medium pipeline, pump set, collection box, filtered water tank, water distributor; The spray descaling box corresponds to the inlet and outlet channel of the descaling target sample, the nozzle is arranged inside the spray descaling box, and is used to spray a mixed jet to the descaling target sample, and the nozzle is connected to the air pipeline and the medium pipeline at the same time, the air pipeline is connected to the compressed air interface, and the medium pipeline is connected to the medium pumping pump; The bottom of the spray descaling box is provided with a box outlet, the collecting box is arranged below the spray descaling box and is connected with the box outlet, the collecting box is also provided with a medium output port and a sewage outlet, the medium output port is connected with the medium pumping pump, the sewage outlet is connected with the filter water tank, and the filter water tank is used to filter and purify the sewage; The filtered water tank is connected to the water distributor through a water pipe and a water pump. The water distributor is used to distribute the filtered water into multiple branches and independently transport it to various locations in the system that need water replenishment.

2. A physical descaling system for metal wire and bar samples according to claim 1, characterized in that: The bottom of the collection box is provided with an inclined surface, and the inclined surface is used to allow the mixed abrasive medium to be quickly deposited at the bottom of the collection box.

3. A physical descaling system for metal wire and bar samples according to claim 1, characterized in that: The two filtered water tanks are arranged adjacent to each other, including a first filtered water tank and a second filtered water tank. The first filtered water tank is connected to the sewage outlet, and the second filtered water tank is connected to the water distributor.

4. A physical descaling system for metal wire and bar samples according to claim 1, characterized in that: The branches of the water distributor are connected to multiple locations inside the spray descaling tank, the bottom of the collection tank, and the medium pumping pump.

5. A physical descaling system for metal wire and bar samples according to claim 1, characterized in that: A water replenishment pipe and a water replenishment interface are also provided, and the water replenishment pipe is connected with the water replenishment interface and the filtered water tank.

6. A physical descaling system for metal wire and bar samples according to claim 1, characterized in that: It also includes a sand replenishing bucket, which is connected to the collection box through a sand replenishing pipe. The sand replenishing pipe is provided with a sand replenishing solenoid valve. The bottom of the collection box is also provided with a sand amount sensor for measuring the sand level height.

7. A physical descaling system for metal wire and bar samples according to claim 1, characterized in that: It also includes a sewage receiving tank, which is arranged at the lowest point of the system. A sewage pump is arranged in the sewage receiving tank, and the sewage pump is connected to a sewage pipe.

8. A physical descaling system for wire rod samples according to claim 1, characterized in that: At least two of the spray descaling boxes are provided, and the number of the nozzles, the air pipelines, the medium pipelines, the collection box, the medium pumping pump, and the water distributor are matched.

9. A physical descaling system for metal wire and bar samples according to claim 8, characterized in that: Each of the air pipelines is provided with an air solenoid valve; the sewage in each of the collection boxes is collected and filtered in the filter water tank; the water pipe is connected to each of the water distributors through a multi-way solenoid valve.

10. A method for physically descaling a metal wire rod sample, using a physical descaling system for a wire rod sample as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1, placing the descaling target sample into a preset position of the spray descaling box; S2, the air solenoid valve and the medium pumping pump are turned on, and compressed air and mixed abrasive medium are respectively delivered to the nozzle through the air pipeline and the medium pipeline to form a mixed jet to physically grind / scour the surface of the descaling target sample; S3, the descaled material enters the collection box, and the mixed abrasive medium gathers at the bottom of the collection box under the action of gravity, and the sewage floats on the upper part of the collection box. The mixed abrasive medium enters the medium pipeline under the action of the medium pumping pump and circulates again. The sewage flows into the first filter water tank and the second filter water tank through the sewage outlet. After filtration, the water is transported to the water distributor by the water pump and the water pipe, and then distributed into multiple branches by the water distributor and transported to different positions of the spray descaling box or the collection box, so that the filtered water is circulated again; S4, when the sand amount sensor detects that the mixed abrasive medium at the corresponding position is insufficient, the corresponding sand replenishment solenoid valve is opened to replenish the mixed abrasive medium to the system; when the liquid level sensor of the second filter water tank detects that the water amount is insufficient, the control module controls the water replenishment pump to replenish water.

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