Recycled aggregate pretreatment circulating spraying device

Abstract

The invention relates to the technical field of recycled aggregate pretreatment, in particular to a recycled aggregate pretreatment circulating spraying device. Comprising a material channel, the material channel is a smooth channel with a height difference at the end and the end and continuously reduced, a blocking structure is arranged on a protruding structure of the conveying end face of the material channel, and the protruding height is smaller than the expected minimum particle size of recycled aggregate particles; the spraying assembly is arranged above the conveying end face of the material channel and used for spraying recycled aggregate particles. According to the device, in the spraying process of recycled aggregate particles through the spraying assembly, the recycled aggregate can slide down along the material channel, the recycled aggregate particles with small particle sizes are blocked by the blocking structure, and the sliding speed of the recycled aggregate particles with large particle sizes is reduced after the recycled aggregate particles make contact with the blocking structure; when the recycled aggregate is sprayed, water can scour and carry dust impurities on the recycled aggregate particles to slide to the bottom end of the cylinder, spraying pretreatment of the recycled aggregate is achieved, the spraying pretreatment effect on the recycled aggregate is improved, and the structure is simple and convenient to maintain.

Description

Technical Field

[0001] The invention relates to the technical field of recycled aggregate pretreatment, in particular to a recycled aggregate pretreatment circulating spraying device. Background Art

[0002] The recycled aggregate pretreatment cycle refers to the process of recycling, processing and optimizing construction waste or concrete waste to make it a recycled material that can replace natural aggregate. In the recycled aggregate pretreatment, the spray device is mainly used for cleaning and dust reduction, and is a key equipment for improving the quality and environmental friendliness of recycled aggregate.

[0003] However, in the process of spraying recycled aggregate, a spray structure is usually set above a conveying device such as a conveyor belt to directly spray the aggregate, or the recycled aggregate is set above a filter screen and vibrated by a vibration component to make it move above the filter screen and then sprayed through a spray device. The above method not only has a poor cleaning effect on the recycled aggregate, but also has a complex structure that is inconvenient for subsequent maintenance and repair, and is not convenient for screening recycled aggregate particles of various particle sizes. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems raised by the above background technology and to propose a recycled aggregate pretreatment circulating spraying device.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] Design a recycled aggregate pretreatment circulation spraying device, including:

[0007] The material channel is a smooth channel with a height difference at the end and continuously decreasing;

[0008] The blocking structure is a raised structure provided on the conveying end face of the material channel, the raised height of which is smaller than the expected minimum particle size of the recycled aggregate particles;

[0009] The spray assembly is arranged above the conveying end surface of the material channel and is used for spraying the recycled aggregate particles.

[0010] Preferably, there are several groups of the blocking structures, and each group of blocking structures includes a plurality of blocking structure units arranged at intervals, and a first interval is provided between two adjacent blocking structures.

[0011] Preferably, the recycled aggregate pretreatment circulation spraying device further comprises a cylinder, the cylinder is a conical thin-walled structure, and the material channel is arranged on the inner wall of the cylinder;

[0012] A feed port is provided above the side end of the cylinder, and the feed port is provided at the starting end position of the conveying end surface of the material channel.

[0013] Preferably, a water treatment assembly is provided below the cylinder, and the water treatment assembly includes a three-way control valve, a first filtering mechanism and a second filtering mechanism;

[0014] The first connecting end of the three-way control valve is connected to the cylinder, the second connecting end of the three-way control valve is connected to the first filter mechanism, and the third connecting end of the three-way control valve is connected to the second filter mechanism;

[0015] When the three-way control valve is controlled to connect the cylinder with the first filter mechanism, water carrying impurities in the aggregate falls into the first filter mechanism, thereby separating the water and impurities;

[0016] When the three-way control valve is controlled to connect the cylinder with the second filter mechanism, water carrying the recycled aggregate falls into the second filter mechanism, thereby separating the water and the recycled aggregate.

[0017] Preferably, a baffle is provided at the edge of the conveying end face of the material channel, and the baffle structure and the partial side wall of the cylinder form a baffle structure of the material channel for blocking the recycled aggregate particles.

[0018] Preferably, a guide structure is provided at the upper end of the baffle, and the guide structure and the baffle form a "T" structure.

[0019] Preferably, a cleaning assembly is provided above the guide structure, and the cleaning assembly is provided on the guide structure, and the cleaning assembly includes a self-propelled mechanism and a brush cleaning mechanism;

[0020] The self-propelled mechanism can actively move along the extension direction of the guide structure and the baffle, and the brush cleaning mechanism is used to clean the recycled aggregate particles remaining on the conveying end surface of the material channel.

[0021] Preferably, a second nozzle is provided above the blocking structure for flushing the recycled aggregate particles remaining above the blocking structure.

[0022] Preferably, the spray assembly includes a spray head and a water supply mechanism;

[0023] The output end of the nozzle one is arranged above the conveying end surface of the material channel and is used for spraying the recycled aggregate particles. The input end of the nozzle one is provided with a water supply mechanism, and the branch pipeline of the water supply mechanism is connected to the nozzle two.

[0024] Preferably, the input end of the water supply mechanism is connected to a water tank, and the water tank is connected to the water outlet ends of the first filtering mechanism and the second filtering mechanism respectively, for recovering and storing water used for recycled aggregate pretreatment.

[0025] The recycled aggregate pretreatment circulating spraying device proposed by the present invention has the beneficial effects of: through the material channel, the blocking structure, the baffle, the cylinder, the guide structure and the spray assembly, the recycled aggregate particles can slide along the material channel during the spraying process of the spray assembly, the recycled aggregate particles with smaller particle sizes are blocked by the blocking structure, and the sliding speed of the aggregate particles with larger particle sizes slows down after contacting the blocking structure, and the water will flush and carry the dust and impurities on the recycled aggregate particles to the bottom end of the cylinder, thereby realizing the spray pretreatment of the recycled aggregate. This method not only improves the spray pretreatment effect of the recycled aggregate, but also has a simple structure and is easy to maintain.

[0026] Water is sprayed on the recycled aggregate through the material channel, the blocking structure, the cylinder, the spray assembly and the second nozzle. The water carries the recycled aggregate particles and rolls along the material channel. When the recycled aggregate particles come into contact with the blocking structure, the recycled aggregate particles are blocked by the blocking structure. The sliding speed of the recycled aggregate particles with larger particle sizes slows down after contacting the blocking structure, while the recycled aggregate particles with smaller particle sizes stay above the blocking structure. By controlling the second nozzle and the spray assembly to increase the water pressure, the recycled aggregate particles with smaller particle sizes staying on the blocking structure are washed away, thereby achieving the screening of recycled aggregate particles with various particle sizes.

[0027] Through the cylinder and the material channel, the cylinder is a tapered thin-walled structure, and the material channel is arranged on the inner wall of the cylinder, so that during the spraying process of the recycled aggregate particles, the water is always inside the cylinder, avoiding the water from scattering to the outside, achieving the purpose of water collection and improving the effect of water recovery;

[0028] The brush cleaning mechanism is driven to move along the baffle and guide structure by controlling the self-propelled mechanism. The brush cleaning mechanism is used to clean the recycled aggregate particles remaining on the conveying end surface of the material channel. The brush cleaning mechanism has a driving component inside, which can drive the brush in the brush cleaning mechanism to clean the conveying end surface of the material channel, and then control the self-propelled mechanism to move to the initial position. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the cross-section structure of the barrel, the material channel and the blocking structure in the present invention;

[0030] Figure 2 This is a schematic diagram of the top view of the material channel, cylinder and blocking structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the barrel, material channel and cleaning component in the present invention;

[0032] Figure 4 for Figure 3 Schematic diagram of the structure of A;

[0033] Figure 5It is a structural diagram of the cylinder, water supply mechanism and water treatment mechanism in the present invention.

[0034] In the figure: 1. Material channel; 2. Blocking structure; 3. Baffle; 4. Guide structure; 5. Cylinder; 501. Feed port; 6. Cleaning assembly; 601. Self-propelled mechanism; 602. Brush cleaning mechanism; 7. Spray assembly; 701. Nozzle 1; 702. Water supply mechanism; 8. Water treatment assembly; 801. Three-way control valve; 802. First filter mechanism; 803. Second filter mechanism; 9. Water tank; 10. Nozzle 2. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings:

[0036] In order to solve the problems of low spray pretreatment effect of recycled aggregate and complex structure and inconvenient maintenance, Figure 1 As shown, the embodiment proposes a recycled aggregate pretreatment circulation spraying device, comprising:

[0037] Channel 1 is a smooth, continuously descending channel with a height difference at the end. It allows recycled aggregate particles to slide down channel 1. The cross-section of the conveying end of channel 1 is an I-shaped structure, ensuring a smooth descent. Blocking structure 2 is a raised structure installed on the conveying end of channel 1. Its height is less than the expected minimum size of the recycled aggregate particles. When the recycled aggregate particles come into contact with blocking structure 2, the recycled aggregate is blocked, and the recycled aggregate is separated from the water and slides along channel 1 to the end of channel 1.

[0038] In other embodiments, the conveying end face of the material channel 1 may also have a specific angle. For example, if the cross section is "V"-shaped, the conveying end face angle of the material channel 1 may be 160°-170°, and in particular, any integer or non-integer value between 161°, 162°, 168°, and 169°. In this way, as the recycled aggregate particles slide along the material channel 1, they may collide with the sidewalls of the conveying end of the material channel 1. The vibration generated by the collision allows dust and impurities adhering to the recycled aggregate particles to be more quickly released, thereby improving the efficiency of recycled aggregate processing.

[0039] Combine Figure 1 and Figure 2As shown, the blocking structures 2 are arranged in several groups, and each group of blocking structures 2 includes multiple spaced-apart blocking structure units. The ends of the blocking structure units are aligned with the inner wall of the cylinder 5 and the baffle 3 to prevent recycled aggregate particles from escaping the blocking structure through the gap between the blocking structure units and the cylinder 5. In other embodiments, a certain gap may exist between the blocking structure units and the cylinder 5 and the baffle 3. This gap must not exceed the expected minimum particle size of the recycled aggregate particles. This ensures that the recycled aggregate particles do not escape from the blocking structure 2 through the gap, while also ensuring that impurities preferentially flow out through the gaps on both sides. A first gap is defined between two adjacent blocking structures 2. The planar extension distance between two adjacent first gaps is 1 cm to 5 cm, preferably 2 cm. This first gap acts as a barrier to continuously block the sliding of recycled aggregate. The vertical height between the blocking structure units of the blocking structure 2 and the conveying end surface of the material channel 1 is 0.15 to 5 mm, preferably 2.5 mm. This blocks aggregate particles with a particle size less than 2.5 mm, thereby separating recycled aggregate particles of different particle sizes.

[0040] The recycled aggregate pretreatment circulating spraying device also includes a cylinder 5, which has a conical thin-wall structure. The material channel 1 is arranged on the inner wall of the cylinder 5, so that the cylinder 5 can achieve the purpose of collecting water, facilitate recovery, and realize the recycling of water. The material channel 1 is a spiral cone structure and can fit the inner wall of the cylinder, which increases the processing path of the recycled aggregate particles by the material channel 1 while reducing the space occupied by the material channel 1. In other embodiments, the material channel 1 can also be a strip-shaped continuous inclined structure, which can ensure that the recycled aggregate particles on the material channel 1 slide more smoothly.

[0041] A feed port 501 is provided above the side end of the cylinder 5 , and the feed port 501 is provided at the starting end position of the conveying end surface of the material channel 1 , and the raw aggregate falls into the conveying end of the material channel 1 through the feed port 501 .

[0042] A second nozzle 10 is provided in the upstream direction of the water flow direction of the material channel 1. The second nozzle 10 is generally located obliquely above the blocking structure 2. The output nozzle of the second nozzle 10 preferably outputs a fan-shaped or conical spray area with a certain pressure. The output port of the second nozzle 10 faces the blocking structure 2. The second nozzle 10 is provided above the blocking structure 2. The angle between the second nozzle 10 and the material channel 1 is between 70° and 10°, preferably 45°, to clean the recycled aggregate particles with smaller particle size remaining on the blocking structure.

[0043] Preferably, since the blocking structure 2 has a protruding structure of a certain length, the output end of the second nozzle 10 forms a certain angle with the extending direction of the blocking structure 2 .

[0044] like Figure 3As shown, a baffle 3 is provided at the edge of the conveying end face of the material channel 1. The baffle structure and the partial side wall of the cylinder 5 form a baffle structure of the material channel 1, which is used to block the recycled aggregate particles. The baffle 3 is perpendicular to the material channel 1 to prevent the granular material from escaping from the material channel as it slides along the material channel 1. A guide structure 4 is provided at the upper end of the baffle 3. The guide structure 4 and the baffle 3 form a "T" structure, which is used to limit the cleaning component 6 and prevent the cleaning component 6 from escaping from the material channel 1. In other embodiments, the guide structure 4 is provided with an arc on one side adjacent to the material channel 1, and the bending direction of the end of the guide structure 4 adjacent to the material channel 1 is toward the direction of the material channel, which can guide the water colliding with the baffle 3 and prevent the water from splashing to the outside of the material channel.

[0045] Combine Figure 3 and Figure 4 As shown, a cleaning assembly 6 is provided above the guide structure 4. The cleaning assembly 6 is provided on the guide structure 4 and includes a self-propelled mechanism 601 and a brush cleaning mechanism 602.

[0046] The self-propelled mechanism 601 can actively move along the extension direction of the guide structure 4 and the baffle 3. The self-propelled mechanism 601 can be controlled to drive the brush cleaning mechanism 602 to move along the baffle 3 and the guide structure 4, so that the brush cleaning mechanism 602 can move along the conveying end surface of the material channel 1 from the starting end to the end end, and then the self-propelled mechanism 601 can be controlled to move from the end end to the starting end. The brush cleaning mechanism 602 is used to clean the recycled aggregate particles remaining on the conveying end surface of the material channel 1. The brush cleaning mechanism 602 has a driving component inside, which can drive the brush in the brush cleaning mechanism to clean the conveying end surface of the material channel 1.

[0047] like Figure 5 As shown, a water treatment component 8 is provided below the cylinder 5, and the water treatment component 8 includes a three-way control valve 801, a first filter mechanism 802 and a second filter mechanism 803. The first connection end of the three-way control valve 801 is connected to the cylinder 5, the second connection end of the three-way control valve 801 is connected to the first filter mechanism 802, and the third connection end of the three-way control valve 801 is connected to the second filter mechanism 803. When the three-way control valve 801 is controlled to connect the cylinder 5 with the first filter mechanism 802, the water carries the impurities in the aggregate and falls into the first filter mechanism 802, thereby separating the water and the impurities. When the three-way control valve 801 is controlled to connect the cylinder 5 with the second filter mechanism 803, the water carries the recycled aggregate and falls into the second filter mechanism 803, thereby separating the water and the recycled aggregate.

[0048] like Figure 5As shown, the spray assembly 7 is arranged above the conveying end surface of the material channel 1, and is used to spray the recycled aggregate particles. The spray assembly 7 includes a nozzle 701 and a water supply mechanism 702. The nozzle 701 is located at any position between the starting end of the material channel 1 and the blocking structure 2 adjacent to the starting end of the material channel 1, preferably above the starting end of the material channel, for spraying the untreated recycled aggregate particles. The water flow output shape of the nozzle 701 is modified to be fan-shaped or conical to ensure a certain spray area. The angle between the output end of the nozzle 701 and the starting end of the material channel 1 is 80° to 50°, preferably 55°, for spraying the untreated recycled aggregate particles. The recycled aggregate is sprayed, and at the same time, a certain amount of power is provided for the untreated recycled aggregate to slide along the material channel 1. A water supply mechanism 702 is provided at the input end of the nozzle 1 701, and the branch pipeline of the water supply mechanism 702 is connected to the nozzle 2 10. A control valve is provided between the branch road of the water supply structure 702 and the nozzle 2 10. The control valve controls whether the nozzle 2 10 discharges water. The input end of the water supply mechanism 702 is connected to the water tank 9, and the water tank 9 is respectively connected to the water outlet ends of the first filter mechanism 802 and the second filter mechanism 803, which are used for recycling and storing water used for the pretreatment of recycled aggregate for recycling.

[0049] Specifically, a certain amount of untreated recycled aggregate particles are dropped into the starting end of the material channel 1 through the feed port 501, and the spray assembly 7 is controlled to work at the same time. The water in the water tank 9 is sprayed on the untreated recycled aggregate through the spray assembly 7. The water will carry the recycled aggregate particles and roll along the material channel 1, and the recycled aggregate particles will contact the blocking structure 2, so that the recycled aggregate particles are blocked by the blocking structure 2, so that the sliding speed of the recycled aggregate particles with larger particle size slows down after contacting the blocking structure, and the recycled aggregate particles with smaller particle size will stay above the blocking structure 2, and the dust and impurities of the recycled aggregate particles will slide to the bottom of the cylinder 5 with the water flow, and the three-way control valve 801 is controlled to connect the cylinder 5 with the first filtering mechanism 802, and the water carries the recycled aggregate particles. The impurities in the material fall into the first filtering mechanism 802, and the water falls into the water tank 9. Then, the three-way control valve 801 is controlled to switch the working state to connect the cylinder 5 with the second filtering mechanism 803. The recycled aggregate with larger particle size falls into the second filtering mechanism 803, and the water and the recycled aggregate with larger particle size are separated. After the recycled aggregate with larger particle size in the second filtering mechanism 803 is taken out, the water supply mechanism 702 is controlled to increase the water flow rate and at the same time deliver it to the nozzle 2 10. The water will carry the recycled aggregate particles with smaller particles and fall into the second filtering mechanism 803, and the water and the recycled aggregate with smaller particle size are separated, completing the pretreatment of the recycled aggregate particles. The water is collected by the water tank 9 to realize water recycling. Then, the water supply mechanism 702 is closed, and the self-propelled mechanism 601 is controlled to move along the baffle 3 and the guide structure 4 to drive the brush cleaning mechanism 602 to move. The brush cleaning mechanism 602 is used to clean the recycled aggregate particles remaining on the conveying end surface of the material channel 1. The brush cleaning mechanism 602 has a driving component inside, which can drive the brush in the brush cleaning mechanism to clean the conveying end surface of the material channel 1, and then the self-propelled mechanism 601 is controlled to move to the initial position.

[0050] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scope based on the ideas of the present technical content. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of this patent.

Claims

1. A recycled aggregate pretreatment circulating spraying device, characterized by: include, The material channel is a smooth channel with a height difference at the end and continuously decreasing; The blocking structure is a raised structure provided on the conveying end face of the material channel, the raised height of which is smaller than the expected minimum particle size of the recycled aggregate particles; The spray assembly is arranged above the conveying end surface of the material channel and is used for spraying the recycled aggregate particles.

2. The recycled aggregate pretreatment circulating spraying device according to claim 1, characterized in that: There are several groups of blocking structures, and each group of blocking structures includes a plurality of blocking structure units arranged at intervals, and a first interval is provided between two adjacent blocking structures.

3. The recycled aggregate pretreatment circulating spraying device according to claim 1, characterized in that: The recycled aggregate pretreatment circulation spraying device further comprises a cylinder, which is a conical thin-walled structure, and the material channel is arranged on the inner wall of the cylinder; A feed port is provided above the side end of the cylinder, and the feed port is provided at the starting end position of the conveying end surface of the material channel.

4. The recycled aggregate pretreatment circulating spraying device according to claim 3, characterized in that: A water treatment assembly is provided below the cylinder, and the water treatment assembly includes a three-way control valve, a first filtering mechanism and a second filtering mechanism; The first connecting end of the three-way control valve is connected to the cylinder, the second connecting end of the three-way control valve is connected to the first filter mechanism, and the third connecting end of the three-way control valve is connected to the second filter mechanism; When the three-way control valve is controlled to connect the cylinder with the first filter mechanism, water carrying impurities in the aggregate falls into the first filter mechanism, thereby separating the water and impurities; When the three-way control valve is controlled to connect the cylinder with the second filter mechanism, water carrying the recycled aggregate falls into the second filter mechanism, thereby separating the water and the recycled aggregate.

5. The recycled aggregate pretreatment circulating spraying device according to claim 1, characterized in that: A baffle is provided at the edge of the conveying end face of the material channel. The baffle structure and the local side wall of the cylinder form the baffle structure of the material channel for blocking the recycled aggregate particles.

6. The recycled aggregate pretreatment circulating spraying device according to claim 5, characterized in that: A guide structure is provided at the upper end of the baffle, and the guide structure and the baffle form a "T" structure.

7. The recycled aggregate pretreatment circulating spraying device according to claim 6, characterized in that: A cleaning assembly is provided above the guide structure, and the cleaning assembly is provided on the guide structure. The cleaning assembly includes a self-propelled mechanism and a brush cleaning mechanism; The self-propelled mechanism can actively move along the extension direction of the guide structure and the baffle, and the brush cleaning mechanism is used to clean the recycled aggregate particles remaining on the conveying end surface of the material channel.

8. The recycled aggregate pretreatment circulating spraying device according to claim 1, characterized in that: A second nozzle is provided above the blocking structure for flushing the recycled aggregate particles remaining above the blocking structure.

9. The recycled aggregate pretreatment circulating spraying device according to claim 8, characterized in that: The spray assembly includes a spray head and a water supply mechanism; The output end of the nozzle one is arranged above the conveying end surface of the material channel and is used for spraying the recycled aggregate particles. The input end of the nozzle one is provided with a water supply mechanism, and the branch pipeline of the water supply mechanism is connected to the nozzle two.

10. The recycled aggregate pretreatment circulating spraying device according to claim 1, characterized in that: The input end of the water supply mechanism is connected to a water tank, and the water tank is connected to the water outlet ends of the first filtering mechanism and the second filtering mechanism respectively, for recovering and storing water used for pretreatment of recycled aggregate.

Images