A safe crushing device for recycling waste concrete

Abstract

The utility model provides a kind of safety crushing device for waste concrete reproduction, belong to concrete production equipment field, including crushing bin, the crushing bin is equipped with the crushing assembly that is carried out to the concrete crushing, the bottom fixed mounting of crushing bin carries out dust setting to dust setting assembly in crushing process;The crushing assembly includes the first motor of being fixedly installed in crushing bin one side, the output end cooperation of first motor is equipped with first rotating shaft, start first motor, drive first rotating shaft rotation, first rotating shaft rotation will drive second rotating shaft synchronous rotation, crushing roller on first rotating shaft and second rotating shaft are rotated, crushing tooth on crushing roller is carried out to the waste concrete of entering crushing bin and is crushed, crushed material falls to filter bin, when passing through magnetic drum, magnetic drum will be attracted in the ferromagnetic material of material, realize preliminary screening.

Description

Technical Field

[0001] This utility model relates to the field of concrete production equipment, and more specifically, to a safe crushing device for the recycling of waste concrete. Background Technology

[0002] Construction waste accounts for a large proportion of urban waste, most of which consists of waste concrete components and blocks generated during the demolition of old buildings. After recycling and processing by equipment such as concrete crushers, the waste concrete can still basically meet the requirements for the use of recycled aggregates and can be used to prepare recycled concrete.

[0003] A search revealed that Chinese patent CN222855540U discloses a "Raw Material Crushing Device for Concrete Production," which includes a crushing chamber. Crushing rollers are movably mounted on both sides of the crushing chamber via rotating shafts. The crushing chamber is equipped with a feeding mechanism, which includes a feed inlet, a functional chamber, a chute, a temporary storage hopper, an electric push rod, and a top plate. The feed inlet is fixedly mounted at the upper end of the crushing chamber, and the functional chamber is fixedly mounted above the feed inlet. A chute is formed on the inner side wall of the functional chamber, and a temporary storage hopper is movably engaged within the functional chamber via the chute. An electric push rod is fixedly mounted on one side of the surface of the functional chamber, and the movable end of the electric push rod is fixedly connected to the temporary storage hopper. A top plate is fixedly mounted on one side of the upper end of the functional chamber. This invention offers good performance by separating the crushing area from the raw material input area, thus preventing injury even if waste concrete blocks are splashed during crushing, thereby improving the safety of the device. However, it still has the following drawbacks: (1) When crushing waste concrete, it is often mixed with various ferromagnetic materials, such as steel bar fragments and iron nails. These ferromagnetic impurities cannot be effectively separated after crushing, which reduces the quality of the final concrete product.

[0004] (2) The dust reduction method is simple. When faced with complex working environments, such as dispersed dust sources, different dust particle sizes and high concentrations, it is difficult to achieve the ideal dust reduction effect.

[0005] Therefore, a safe crushing device for the recycling of waste concrete is proposed. Utility Model Content

[0006] The purpose of this invention is to address the problem that various ferromagnetic materials, such as steel bar fragments and nails, are often mixed in when crushing waste concrete, and these ferromagnetic impurities cannot be effectively separated after crushing, thus reducing the quality of the final concrete product. This invention provides a safe crushing device for the recycling of waste concrete to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: The present invention is as follows: a safe crushing device for the recycling of waste concrete, including a crushing chamber, wherein a crushing component for crushing concrete is installed inside the crushing chamber, and a dust suppression component for suppressing dust during the crushing process is fixedly installed at the bottom of the crushing chamber. The crushing assembly includes a first motor fixedly installed on one side of the crushing chamber, with a first rotating shaft installed at the output end of the first motor. A second rotating shaft is provided through one side of the crushing chamber. Crushing rollers for crushing concrete are fixedly installed on both the first and second rotating shafts. The crushing rollers are provided with crushing teeth located inside the crushing chamber. A filter chamber is fixedly installed at the bottom of the crushing chamber, and a magnetic roller is fixedly installed on the inner side wall of the filter chamber.

[0008] As a preferred technical solution of this utility model, the dust suppression component includes a collection chamber located on one side of the filter chamber, a suction tube is provided through one side of the filter chamber, one end of the suction tube is located inside the collection chamber, a second motor is fixedly installed on one side of the collection chamber, a third rotating shaft is installed at the output end of the second motor, and a blade is fixedly connected to the third rotating shaft, the blade being located inside the collection chamber.

[0009] As a preferred technical solution of this utility model, an inclined feeding plate is fixedly installed at the bottom of the crushing chamber, the inclined feeding plate is located at the top of the magnetic drum, and a belt is connected between the first rotating shaft and the second rotating shaft.

[0010] As a preferred technical solution of this utility model, a rectangular plate is fixedly installed on the top of the crushing chamber, and a water pipe is fixedly installed on the inner side of the rectangular plate, with one end of the water pipe penetrating through the rectangular plate.

[0011] As a preferred technical solution of this utility model, a screen is fixedly installed at the bottom of the filter chamber, the screen is located at the bottom of the magnetic roller, and a baffle is installed on the filter chamber by a snap fastener.

[0012] As a preferred technical solution of this utility model, a filter cloth is fixedly installed inside the collection chamber, the filter cloth is located between the blade and the suction tube, and the collection chamber and the filter chamber are connected by a snap fastener.

[0013] As a preferred technical solution of this utility model, a feed inlet is fixedly installed on the top of the rectangular plate, and a storage bin is fixedly installed on the bottom of the filter bin, with the bottom of the storage bin being inclined.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Start the first motor to drive the first rotating shaft to rotate. The rotation of the first rotating shaft will drive the second rotating shaft to rotate synchronously. The crushing rollers installed on the first and second rotating shafts will rotate accordingly. The crushing teeth on the crushing rollers crush the waste concrete entering the crushing chamber. The crushed material falls into the filter chamber. When it passes through the magnetic drum, the magnetic drum adsorbs the ferromagnetic substances in the material, achieving preliminary screening. 2. When the second motor starts, it will drive the third shaft connected to it to start rotating. The rotation of the third shaft will also drive the blades installed on it to rotate rapidly. When the blades rotate at high speed, a negative pressure environment will be formed in the collection chamber. Under the strong suction force generated by the negative pressure, the dust generated in the filter chamber due to the crushing operation will be quickly sucked into the collection chamber through the suction pipe, effectively achieving the purpose of dust reduction, greatly reducing the spread and outward of dust to the surrounding environment, thereby significantly improving the working environment at the work site and effectively protecting the health of the operators. Attached Figure Description

[0015] Figure 1 One of the three-dimensional structural schematic diagrams of the safe crushing device for waste concrete recycling provided by this utility model; Figure 2 A second three-dimensional structural schematic diagram of the safe crushing device for waste concrete recycling provided by this utility model; Figure 3 A cross-sectional structural schematic diagram of the safe crushing device for waste concrete recycling provided by this utility model; Figure 4 A three-dimensional cross-sectional structural diagram of the safe crushing device for waste concrete recycling provided by this utility model; Figure 5 A cross-sectional enlarged structural schematic diagram of the safe crushing device for waste concrete recycling provided by this utility model; Figure 6 A partial structural diagram of the crushing component of the safe crushing device for waste concrete recycling provided by this utility model.

[0016] The diagram shows: 1. Crushing chamber; 2. Crushing assembly; 201. First motor; 202. First shaft; 203. Second shaft; 204. Crushing roller; 205. Crushing teeth; 206. Filter chamber; 207. Magnetic drum; 2071. Inclined feed plate; 2072. Belt; 3. Dust suppression assembly; 301. Collection chamber; 302. Suction pipe; 303. Second motor; 304. Third shaft; 305. Blade; 3051. Rectangular plate; 3052. Water pipe; 4. Screen; 5. Baffle; 6. Filter cloth; 7. Feed inlet; 8. Storage silo. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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 some, not all, of the embodiments of this utility model.

[0018] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] like Figures 1-4 and Figure 6 As shown, this embodiment proposes a safe crushing device for the recycling of waste concrete, including a crushing chamber 1, a crushing component 2 for crushing concrete installed in the crushing chamber 1, and a dust suppression component 3 for suppressing dust during the crushing process fixedly installed at the bottom of the crushing chamber 1. The crushing assembly 2 includes a first motor 201 fixedly installed on one side of the crushing chamber 1. The output end of the first motor 201 is fitted with a first rotating shaft 202. A second rotating shaft 203 is provided through one side of the crushing chamber 1. Crushing rollers 204 for crushing concrete are fixedly installed on both the first rotating shaft 202 and the second rotating shaft 203. Crushing teeth 205 are provided on the crushing rollers 204 and are located inside the crushing chamber 1. A filter chamber 206 is fixedly installed at the bottom of the crushing chamber 1. A magnetic roller 207 is fixedly installed on the inner wall of the filter chamber 206. The first motor 201 is started, which drives the first rotating shaft 202 to rotate. The rotation of the first rotating shaft 202 will drive the second rotating shaft 203 to rotate synchronously. The crushing roller 204 installed on the first rotating shaft 202 and the second rotating shaft 203 will rotate accordingly. The crushing teeth 205 on the crushing roller 204 crush the waste concrete entering the crushing chamber 1. The crushed material falls into the filter chamber 206. When it passes through the magnetic roller 207, the magnetic roller 207 adsorbs the ferromagnetic substances in the material, realizing preliminary screening.

[0022] like Figures 1-5As shown, the dust collection assembly 3 includes a collection chamber 301 located on one side of the filter chamber 206. A suction pipe 302 is provided through one side of the filter chamber 206. One end of the suction pipe 302 is located inside the collection chamber 301. A second motor 303 is fixedly installed on one side of the collection chamber 301. A third rotating shaft 304 is installed at the output end of the second motor 303. A blade 305 is fixedly connected to the third rotating shaft 304. The blade 305 is located inside the collection chamber 301. When the second motor 303 starts, it drives the third rotating shaft 304 connected to it to start rotating. The rotation of the third rotating shaft 304 causes the blades 305 installed on it to rotate rapidly as well. When the blades 305 rotate at high speed, a negative pressure environment is formed in the collection chamber 301. Under the strong suction force generated by the negative pressure, the dust generated in the filter chamber 206 due to the crushing operation will be quickly sucked into the collection chamber 301 along the suction pipe 302, effectively achieving the purpose of dust reduction, greatly reducing the spread and outward emission of dust to the surrounding environment, thereby significantly improving the working environment at the work site and effectively protecting the health of the operators.

[0023] like Figures 1-4 and Figure 6 As shown, an inclined feeding plate 2071 is fixedly installed at the bottom of the crushing chamber 1. The inclined feeding plate 2071 is located on top of the magnetic drum 207. A belt 2072 connects the first rotating shaft 202 and the second rotating shaft 203. After being crushed by the crushing roller 204, the crushed material slides down the inclined feeding plate 2071 to the filter chamber 206, allowing the material to enter the filter chamber 206 for screening more smoothly. The belt 2072 drives the second rotating shaft 203 to rotate synchronously, realizing the linkage of the two crushing rollers 204.

[0024] like Figures 1-4 As shown, a rectangular plate 3051 is fixedly installed on the top of the crushing chamber 1, and a water pipe 3052 is fixedly installed on the inner side of the rectangular plate 3051, with one end of the water pipe 3052 penetrating through the rectangular plate 3051. During the crushing process, water can be sprayed into the crushing chamber 1 through the water pipe 3052 to reduce dust and moisten the material, thereby reducing the dust generated during the crushing process and making the material easier to crush and process later.

[0025] like Figure 1 , Figures 3-5 As shown, a screen 4 is fixedly installed at the bottom of the filter chamber 206. The screen 4 is located at the bottom of the magnetic drum 207, and a baffle 5 is installed on the filter chamber 206 by a snap-fit. The material after being screened by the magnetic drum 207 falls onto the screen 4, which further screens the material, allowing the material that meets the particle size requirements to pass through, while the material that does not meet the requirements remains on the screen 4. The baffle 5 can be opened or closed as needed to facilitate cleaning and inspection of the material in the filter chamber 206.

[0026] like Figure 4 and Figure 5 As shown, a filter cloth 6 is fixedly installed inside the collection chamber 301. The filter cloth 6 is located between the blade 305 and the suction tube 302. The collection chamber 301 and the filter chamber 206 are connected by a snap fastener. When the blade 305 rotates and generates negative pressure, it draws dust into the collection chamber 301 through the suction tube 302. The filter cloth 6 blocks the dust from passing through, keeping the dust inside the collection chamber 301. The snap fasteners on the collection chamber 301 are easy to disassemble and install, facilitating the cleaning and replacement of the filter cloth 6 inside the collection chamber 301.

[0027] like Figures 1-4 As shown, a feed inlet 7 is fixedly installed on the top of the rectangular plate 3051, and a storage bin 8 is fixedly installed on the bottom of the filter bin 206. The bottom of the storage bin 8 is inclined. Concrete is introduced through the feed inlet 7, and the qualified material after screening falls into the storage bin 8 for storage. The bottom of the storage bin 8 is inclined to facilitate the automatic sliding of the material under the action of gravity, which is convenient for the discharge of the material and subsequent use.

[0028] Specifically, in use, this safe crushing device for waste concrete recycling operates as follows: Concrete is introduced through the feed inlet 7, the first motor 201 is started, driving the first rotating shaft 202 to rotate. The rotation of the first rotating shaft 202 drives the second rotating shaft 203 to rotate synchronously. The crushing rollers 204 installed on the first rotating shaft 202 and the second rotating shaft 203 rotate accordingly. The crushing teeth 205 on the crushing rollers 204 crush the waste concrete entering the crushing chamber 1. The crushed material falls into the filter chamber 206. When passing through the magnetic roller 207, the magnetic roller 207 adsorbs the ferromagnetic substances in the material, achieving preliminary screening. During the crushing process, water can be sprayed into the crushing chamber 1 through the water pipe 3052 to reduce dust and moisten the material. To reduce dust generated during the crushing process and make materials easier to crush and process, the second motor 303, once started, will drive the third rotating shaft 304 connected to it to start rotating. The rotation of the third rotating shaft 304 will also drive the blades 305 installed on it to rotate rapidly. When the blades 305 rotate at high speed, a negative pressure environment will be formed in the collection chamber 301. Under the strong suction force generated by the negative pressure, the dust generated in the filter chamber 206 due to the crushing operation will be quickly sucked into the collection chamber 301 through the suction pipe 302, effectively achieving the purpose of dust reduction, greatly reducing the spread and outward emission of dust to the surrounding environment, thereby significantly improving the working environment at the work site and effectively protecting the health of the operators.

[0029] All technical features in this embodiment can be freely combined according to actual needs.

[0030] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A safe crushing device for the recycling of waste concrete, comprising a crushing chamber (1), characterized in that, The crushing chamber (1) is equipped with a crushing component (2) for crushing concrete, and a dust suppression component (3) for suppressing dust during the crushing process is fixedly installed at the bottom of the crushing chamber (1). The crushing assembly (2) includes a first motor (201) fixedly installed on one side of the crushing chamber (1). The output end of the first motor (201) is fitted with a first rotating shaft (202). A second rotating shaft (203) is provided through one side of the crushing chamber (1). Both the first rotating shaft (202) and the second rotating shaft (203) are fixedly installed with crushing rollers (204) for crushing concrete. The crushing rollers (204) are provided with crushing teeth (205) and the crushing teeth (205) are located inside the crushing chamber (1). A filter chamber (206) is fixedly installed at the bottom of the crushing chamber (1). A magnetic roller (207) is fixedly installed on the inner wall of the filter chamber (206).

2. The safe crushing device for waste concrete recycling according to claim 1, characterized in that, The dust collection assembly (3) includes a collection chamber (301) located on one side of the filter chamber (206). A suction tube (302) is provided through one side of the filter chamber (206). One end of the suction tube (302) is located inside the collection chamber (301). A second motor (303) is fixedly installed on one side of the collection chamber (301). A third rotating shaft (304) is installed at the output end of the second motor (303). A blade (305) is fixedly connected to the third rotating shaft (304). The blade (305) is located inside the collection chamber (301).

3. The safe crushing device for waste concrete recycling according to claim 1, characterized in that, An inclined feeding plate (2071) is fixedly installed at the bottom of the crushing chamber (1). The inclined feeding plate (2071) is located at the top of the magnetic drum (207). A belt (2072) is connected between the first rotating shaft (202) and the second rotating shaft (203).

4. The safe crushing device for waste concrete recycling according to claim 1, characterized in that, A rectangular plate (3051) is fixedly installed on the top of the crushing chamber (1), and a water pipe (3052) is fixedly installed on the inner side of the rectangular plate (3051). One end of the water pipe (3052) is inserted through the rectangular plate (3051).

5. A safe crushing device for waste concrete recycling according to claim 1, characterized in that, A screen (4) is fixedly installed at the bottom of the filter chamber (206). The screen (4) is located at the bottom of the magnetic roller (207). A baffle (5) is installed on the filter chamber (206) by a snap fastener.

6. A safe crushing device for waste concrete recycling according to claim 2, characterized in that, A filter cloth (6) is fixedly installed inside the collection chamber (301). The filter cloth (6) is located between the blade (305) and the suction tube (302). The collection chamber (301) and the filter chamber (206) are connected by a snap fastener.

7. A safe crushing device for waste concrete recycling according to claim 4, characterized in that, The top of the rectangular plate (3051) is fixedly equipped with a feed inlet (7), and the bottom of the filter chamber (206) is fixedly equipped with a storage silo (8), the bottom of which is inclined.

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