Dust treatment method and system for ore crushing processing

Abstract

The invention relates to the technical field of dust treatment, in particular to a dust treatment method and system for ore crushing processing. The device comprises an air conveying pipe arranged at the top of a base, a fan used for enabling air in the air conveying pipe to flow and a mist spraying mechanism used for spraying an external water source in a mist shape are arranged in the air conveying pipe, and when airflow passes through the mist spraying mechanism, the airflow drives mist drops to flow towards the end of the air conveying pipe. According to the dust treatment method and system for ore crushing processing, negative pressure is locally generated in the air conveying pipe by adjusting the flow speed of air in the air conveying pipe, dust around the crusher is sucked into the air conveying pipe through the negative pressure, the dust is mixed with fog drops in the air conveying pipe, and the fog drops are prevented from being diffused to the outside; and after mixing, part of fog drops are guided to the feeding port of the crusher through the arranged liquid collecting mechanism, dust falling of the feeding port is further achieved, and water resources are utilized.

Description

Technical Field

[0001] The present invention relates to the technical field of dust treatment, and in particular to a method and system for treating dust in ore crushing processing. Background Art

[0002] Ore refers to stones containing some valuable minerals taken from mines. After being crushed, ground and processed step by step, the ore can be used in engineering fields such as metal mining, metallurgical industry, chemical industry, construction industry, railway (highway) construction units, cement industry and sand and gravel industry.

[0003] After the ore is mined, it must first be crushed. Usually, the crushing equipment is basically a jaw crusher. During the crushing process, the ore will produce a lot of dust, which will cause environmental pollution. At present, the dust is mostly treated by spraying equipment, that is, sprayers are set around the crusher to spray water in the form of mist to achieve dust reduction.

[0004] However, when water is sprayed in the form of mist, the mist droplets will diffuse around the crusher under the action of inertia, so that the mist droplets will be distributed around the crusher. In this way, on the one hand, the environment around the crusher is relatively humid; on the other hand, the sprayed mist droplets cannot be reused, resulting in a waste of water resources. Summary of the invention

[0005] The object of the present invention is to provide a dust treatment method and system for ore crushing processing to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, one of the objects of the present invention is to provide a dust treatment system for ore crushing processing, comprising an air duct arranged on the top of a base, wherein a fan for making the gas inside the air duct flow is arranged inside the air duct, and a spray mechanism for spraying the external water source in the form of mist, when the air flow passes through the spray mechanism, the air flow drives the mist droplets to flow toward the end of the air duct;

[0007] The air duct is also provided with a guide member for increasing the velocity of the air flow in the air duct, and the guide member is in a conical structure; the air duct is connected to a first air intake pipe at one end extending to the feed port of the crusher and a second air intake pipe at one end extending to the discharge port of the crusher at the guide member; when the air flow in the air duct is accelerated by the guide member, a negative pressure cavity is formed on the periphery of the guide member, so that dust around the first and second air intake pipes is sucked into the air duct under the action of the negative pressure, and contacts with the mist droplets in the air duct;

[0008] A liquid collecting mechanism is arranged inside the air delivery pipe on the path of the air flow, and the liquid collecting mechanism is used to intercept the droplets in the air flow and guide the intercepted droplets to the feed port of the crusher.

[0009] As a further improvement of the technical solution, the fan is arranged at the bottom end of the air delivery pipe, the spray mechanism is located above the fan, the flow guide is located above the spray mechanism, and the liquid collection mechanism is located above the flow guide;

[0010] The spray mechanism comprises a spray pipe fixedly arranged inside the air supply pipe, and a water inlet pipe having one end connected to the spray pipe and the other end penetrating the air supply pipe; the insides of the spray pipe and the water inlet pipe are both hollow structures, the top of the spray pipe is connected to an atomizing nozzle, and one end of the water inlet pipe is connected to an external water source;

[0011] The top end of the air delivery pipe is bent to one side, and the bending direction is toward the path of the ore entering the feed port.

[0012] As a further improvement of the technical solution, the flow guide is a tube body with a large diameter at the bottom and a small diameter at the top, and the outer wall of the bottom end of the tube body is fixedly fitted with the inner wall of the air duct; when the airflow in the air duct is discharged through the top of the tube body, a negative pressure cavity is formed between the outer ring of the tube body and the inner ring of the air duct;

[0013] The connection point between the first air intake pipe and the air supply pipe, and the connection point between the second air intake pipe and the air supply pipe are both located in the negative pressure cavity and are connected to the negative pressure cavity.

[0014] As a further improvement of the technical solution, the liquid collection mechanism includes a baffle fixedly arranged on the inner wall of the air delivery pipe, and a liquid guide mechanism for guiding the liquid at the baffle to the feed inlet, wherein:

[0015] The height of the baffle is smaller than the diameter of the air delivery pipe, so that the gas in the air delivery pipe can continue to flow through the gap between the baffle and the air delivery pipe.

[0016] As a further improvement of the present technical solution, a plurality of baffles are provided, among which a portion of the baffles are fixedly provided at the top of the air duct, and another portion of the baffles are fixedly provided at the bottom of the air duct, and the two portions of the baffles are staggered to form a continuous "S"-shaped channel inside the air duct at the baffles.

[0017] As a further improvement of the technical solution, the liquid diversion mechanism includes a liquid storage tank fixedly arranged on the side wall of the air delivery pipe, and a connecting pipe connecting the top of the liquid storage tank and the air delivery pipe is arranged between the two, so that the droplets on the side wall of the baffle flow into the liquid storage tank through the connecting pipe;

[0018] The connecting pipe is located on one side of the baffle plate close to the middle of the base;

[0019] The bottom of the liquid storage tank is connected to a drain pipe with one end extending to the feed inlet.

[0020] As a further improvement of the present technical solution, a valve assembly is provided at the drainage pipe, and the valve assembly is connected to the negative pressure chamber, and is used to control the opening or closing of the drainage pipe according to the change of pressure in the negative pressure chamber; a control mechanism is provided at the end of the second suction pipe, and when there is no ore at the discharge port, the control mechanism closes the second suction pipe to change the pressure in the negative pressure chamber.

[0021] As a further improvement of the technical solution, a straight pipe is longitudinally provided in the middle of the drainage pipe, the bottom end of the straight pipe is connected to a piston tube, a piston plate is longitudinally slidably provided in the piston tube, a connecting spring is provided between the bottom end of the piston plate and the bottom of the piston tube to elastically connect the two, and a water retaining column is fixedly provided at the top end to slide into the straight pipe;

[0022] The middle part of the water retaining column shrinks inwards and forms a depression. Under normal conditions, the depression is located at the drain pipe to allow the liquid in the drain pipe to flow normally.

[0023] The bottom end of the piston tube is connected to an air supply pipe for providing negative pressure inside the piston tube when the second air intake pipe is in a closed state;

[0024] One end of the air delivery pipe is communicated with the negative pressure chamber.

[0025] As a further improvement of the present technical solution, the control mechanism includes a cover plate rotatably arranged at one end of the second intake pipe, a return spring elastically connecting the cover plate and the second intake pipe is arranged between the cover plate and the second intake pipe, and a receiving plate located below the discharge port is fixedly arranged on the side of the cover plate away from the second intake pipe; under normal circumstances, the cover plate blocks one end of the second intake pipe.

[0026] The second object of the present invention is to provide a dust treatment method for a dust treatment system for ore crushing processing, comprising the following method steps:

[0027] S1. The spray mechanism sprays the external water source into the air duct in the form of mist, and the fan blows the mist droplets in the air duct;

[0028] S2, the blown droplets are accelerated by the guide member arranged in the air duct, so that negative pressure is generated around the guide member, thereby sucking the external dust into the air duct through the first suction pipe and the second suction pipe, and contacting with the droplets in the air duct;

[0029] S3. After the dust contacts the mist droplets, the mist droplets containing dust collide with the side wall of the baffle, causing the mist droplets containing dust to stop on the side wall of the baffle. Under the action of gravity, water and dust flow downward into the liquid storage tank together, and then are discharged to the feed inlet through the drain pipe.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. In the dust treatment method and system for ore crushing processing, the flow rate of the gas in the air duct is adjusted to generate negative pressure locally in the air duct, and the negative pressure is used to suck the dust around the crusher into the air duct, so that the dust is mixed with the droplets in the air duct to prevent the droplets from diffusing to the outside; and after mixing, part of the droplets are guided to the feed port of the crusher through the provided liquid collection mechanism, so as to further achieve dust reduction at the feed port and achieve the utilization of water resources.

[0032] 2. In the dust treatment method and system for ore crushing processing, since the second air suction pipe is located below the discharge port, the control mechanism can control the negative pressure of the negative pressure chamber according to the state of the ore crusher, so that when the crusher is not crushing the ore, the water in the liquid storage tank is controlled to stop flowing, further avoiding the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0034] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0035] Figure 3 It is a schematic diagram of the internal structure of the air delivery pipe of the present invention;

[0036] Figure 4 It is a structural schematic diagram of the liquid guiding mechanism of the present invention;

[0037] Figure 5 For the present invention Figure 4 A schematic diagram of the structure at A;

[0038] Figure 6 It is a structural schematic diagram of the control mechanism of the present invention;

[0039] Figure 7 It is a schematic diagram of the state of the airflow in the air delivery pipe of the present invention.

[0040] The meaning of each number in the figure is:

[0041] 100, base; 101, bracket; 110, air duct; 111, fan; 112, first air intake pipe; 113, second air intake pipe; 120, spray mechanism; 121, spray pipe; 122, water inlet pipe;

[0042] 130, flow guide; 131, negative pressure chamber; 140, liquid collecting mechanism; 141, baffle;

[0043] 150, liquid diversion mechanism; 151, liquid storage tank; 152, connecting pipe; 153, drainage pipe; 154, straight pipe; 155, piston pipe; 156, water retaining column; 157, piston plate; 158, depression; 159, gas transmission pipe;

[0044] 160. Control mechanism; 161. Cover plate; 162. Connecting plate; 163. Connecting shaft; 164. Return spring; 165. Receiving plate; 200. Crusher; 201. Feed inlet; 202. Discharge outlet. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] See also Figure 1As shown, one of the purposes of the present invention is to provide a dust treatment system for ore crushing processing, including an air delivery pipe 110 arranged on the top of a base 100. Specifically, a bracket 101 (specific shape reference Figure 2 ), the bracket 101 is fixedly connected to the air duct 110, so that the air duct 110 is fixed to the top of the base 100. The air duct 110 is provided with a fan 111 for making the air inside the air duct 110 flow, and a spray mechanism 120 for spraying the external water source in the form of mist. When the air flow passes through the spray mechanism 120, the air flow drives the mist droplets to flow toward the end of the air duct 110; the air duct 110 is also provided with a guide member 130 for increasing the flow rate of the air flow in the air duct 110. The guide member 130 is a conical structure. The air duct 110 is connected to the first air intake pipe 112 at one end extending to the feed inlet 201 of the crusher 200, and the first air intake pipe 112 at one end extending to the crusher 200 is connected to the first air intake pipe 112 at one end extending to the feed inlet 201 of the crusher 200. 0; when the air flow in the air duct 110 is accelerated by the guide member 130, a negative pressure chamber 131 is formed on the periphery of the guide member 130, so that the dust around the first and second air ducts 112 and 113 is sucked into the air duct 110 under the action of the negative pressure, and comes into contact with the droplets in the air duct 110; a liquid collecting mechanism 140 is provided inside the air duct 110 on the path of the air flow, and the liquid collecting mechanism 140 is used to intercept the droplets in the air flow and guide the intercepted droplets to the feed port 201 of the crusher 200.

[0049] That is to say, by adjusting the flow rate of the gas in the air duct 110, negative pressure is generated locally in the air duct 110, and the negative pressure is used to suck the dust around the crusher 200 into the air duct 110, so that the dust is mixed with the droplets in the air duct 110 to prevent the droplets from diffusing to the outside; and after mixing, part of the droplets are guided to the feed port 201 of the crusher 200 through the set liquid collection mechanism 140, so as to further achieve dust reduction at the feed port 201 and achieve the utilization of water resources.

[0050] then, Figure 1The specific positions of the fan 111, the spray mechanism 120, the guide member 130 and other components are specifically shown. As shown in the figure, the fan 111 is arranged at the bottom end of the air duct 110, the spray mechanism 120 is located above the fan 111, the guide member 130 is located above the spray mechanism 120, and the liquid collection mechanism 140 is located above the guide member 130. Among them, the spray mechanism 120 includes a spray pipe 121 fixedly arranged inside the air duct 110, and a water inlet pipe 122 arranged at one end connected to the spray pipe 121 and the other end penetrating the air duct 110; the insides of the spray pipe 121 and the water inlet pipe 122 are both hollow structures, the top of the spray pipe 121 is connected to an atomizing nozzle, and one end of the water inlet pipe 122 is connected to an external water source. When the external water source enters the spray pipe 121 through the water inlet pipe 122, the atomizing nozzle sprays the water in the spray pipe 121 in an atomized manner, thereby generating droplets inside the air duct 110.

[0051] Furthermore, the top of the air delivery pipe 110 is bent to one side, and the bending direction is preferably toward the path of the ore entering the feed port 201. In this way, since a small number of droplets are not intercepted by the liquid collection mechanism 140, the droplets discharged from the end of the air delivery pipe 110 can be blown toward the ore under the drive of the air flow, thereby pre-humidifying the ore before crushing.

[0052] Figure 3 The specific structure of the guide 130 is shown. As shown in the figure, in some embodiments, the guide 130 is a tube with a large diameter at the bottom and a small diameter at the top. The outer wall of the bottom of the tube is fixedly fitted with the inner wall of the air duct 110. When the air in the air duct 110 is discharged through the top of the tube, a negative pressure cavity 131 is formed between the outer ring of the tube and the inner ring of the air duct 110. At the same time, combined with Figure 7 As shown, the connection point between the first air intake pipe 112 and the air supply pipe 110 , and the connection point between the second air intake pipe 113 and the air supply pipe 110 are both located in the negative pressure chamber 131 and are connected to the negative pressure chamber 131 .

[0053] like Figure 4As shown, the liquid collection mechanism 140 includes a baffle 141 fixedly arranged on the inner wall of the air duct 110, and a liquid guide mechanism 150 for guiding the liquid at the baffle 141 to the feed port 201. The height of the baffle 141 is less than the diameter of the air duct 110, so that the gas in the air duct 110 can continue to flow through the gap between the baffle 141 and the air duct 110. When the flowing droplets collide with the baffle 141, the droplets will stay on the side wall of the baffle 141, thereby blocking the droplets. In addition, in order to improve the interception efficiency of the droplets, a plurality of baffles 141 are provided. Among the plurality of baffles 141, a part of the baffles 141 is fixedly arranged on the top of the air duct 110, and another part of the baffles 141 is fixedly arranged on the bottom of the air duct 110. The two parts of the baffles 141 are staggered, so that a continuous "S"-shaped channel is formed inside the air duct 110 at the baffle 141.

[0054] The liquid diversion mechanism 150 includes a liquid storage tank 151 fixedly arranged on the side wall of the air delivery pipe 110, and a connecting pipe 152 is arranged between the top of the liquid storage tank 151 and the air delivery pipe 110 to connect the two, so that the mist droplets on the side wall of the baffle 141 flow into the liquid storage tank 151 through the connecting pipe 152. Specifically, the connecting pipe 152 is located on one side of the baffle 141 close to the middle of the base 100. Then, the bottom of the liquid storage tank 151 is connected to a drain pipe 153 with one end extending to the feed port 201.

[0055] Working principle:

[0056] Combination Figure 7 As shown, first, an external water source is connected to the spray pipe 121, so that the external water source enters the spray mechanism 120 through the spray pipe 121 and is sprayed out through the atomizing nozzle to form droplets in the air delivery pipe 110. Next, the fan 111 is started, and the fan 111 is driven by a motor. When the motor drives the fan 111 to rotate, the fan 111 blows gas into the air delivery pipe 110, so that airflow is generated inside the air delivery pipe 110, and the airflow drives the droplets to move during the flow process.

[0057] When the airflow passes through the tube body, the diameter of the top of the tube body is smaller than the diameter of its bottom, so the airflow is accelerated when passing through the top of the tube body. According to Bernoulli's principle, when the flow velocity of the airflow increases, the pressure decreases, so a negative pressure cavity 131 is formed on the periphery of the flow guide 130. Therefore, the first suction pipe 112 and the second suction pipe 113 connected to the negative pressure cavity 131 suck the dust at the feed port 201 and the feed port 201, and the dust enters the air delivery pipe 110 through the first suction pipe 112 and the second suction pipe 113, and contacts with the droplets in the air delivery pipe 110.

[0058] When the dust-containing droplets move to the baffle 141, the dust-containing droplets will collide with the side wall of the baffle 141. At this time, the dust-containing droplets will stop on the side wall of the baffle 141. As the droplets on the side wall of the baffle 141 continue to increase, the droplets gradually form water, and under the action of gravity, the water and dust flow downward into the connecting pipe 152, flow into the liquid storage tank 151 through the connecting pipe 152, and then are discharged to the feed port 201 through the drain pipe 153, thereby further reducing dust at the feed port 201. The gas in the air duct 110 is discharged to the outside through the gap between the baffle 141 and the air duct 110.

[0059] Furthermore, in order to avoid the phenomenon that water is discharged from the drain pipe 153 when there is no ore at the feed port 201. Figure 4-Figure 6 As shown, a valve assembly is provided at the drain pipe 153, and the valve assembly is connected to the negative pressure chamber 131, and is used to control the opening or closing of the drain pipe 153 according to the change of the pressure in the negative pressure chamber 131; a control mechanism 160 is provided at the end of the second suction pipe 113, and the control mechanism 160 closes the second suction pipe 113 when there is no ore at the discharge port 202, so that the pressure in the negative pressure chamber 131 changes.

[0060] Specifically, Figure 5 As shown, a straight pipe 154 is longitudinally penetrated through the middle part of the drain pipe 153, and the bottom end of the straight pipe 154 is connected to a piston tube 155. A piston plate 157 is longitudinally slidably arranged in the piston tube 155, and a connecting spring is arranged between the bottom end of the piston plate 157 and the bottom of the piston tube 155 to elastically connect the two. A water retaining column 156 that slides into the straight pipe 154 is fixed at the top, and the middle part of the water retaining column 156 shrinks inwardly to form a depression 158; under normal conditions, the depression 158 is located at the drain pipe 153 to allow the liquid in the drain pipe 153 to flow normally; in addition, the bottom end of the piston tube 155 is connected to an air supply pipe 159 for providing negative pressure to the inside of the piston tube 155 when the second suction pipe 113 is in a closed state.

[0061] In some embodiments, one end of the air delivery pipe 159 is connected to the first air intake pipe 112. Thus, when the negative pressure at the negative pressure chamber 131 increases, the negative pressure in the first air intake pipe 112 also increases accordingly. Therefore, the negative pressure in the first air intake pipe 112 enters the piston tube 155 through the air delivery pipe 159.

[0062] In other embodiments, one end of the air delivery tube 159 is connected to the negative pressure chamber 131. In this way, when the negative pressure at the negative pressure chamber 131 increases, the negative pressure in the negative pressure chamber 131 enters the piston tube 155 through the air delivery tube 159.

[0063] The control mechanism 160 includes a cover plate 161 rotatably disposed at one end of the second air intake pipe 113, a return spring 164 elastically connecting the cover plate 161 and the second air intake pipe 113 is disposed between the cover plate 161 and the second air intake pipe 113, and a receiving plate 165 located below the discharge port 202 is fixedly disposed on the side of the cover plate 161 away from the second air intake pipe 113; under normal conditions, the cover plate 161 blocks one end of the second air intake pipe 113. Specifically, a connecting plate 162 is fixedly disposed at the bottom of one end of the second air intake pipe 113, and a connecting shaft 163 rotatably connected to the bottom of the cover plate 161 is fixedly disposed at one end of the connecting plate 162 facing the cover plate 161, and one end of the return spring 164 is fixedly connected to the side wall of the connecting plate 162, and the other end is fixedly connected to the side wall of the cover plate 161.

[0064] Working principle:

[0065] When there is no ore in the crusher 200, no ore will fall at the discharge port 202, and the receiving plate 165 is located below the discharge port 202. Therefore, in this state, no ore will hit the receiving plate 165. At this time, the return spring 164 pulls the cover plate 161 to the end of the second intake pipe 113 through its own elasticity, thereby blocking the end of the second intake pipe 113. At this time, the second air intake pipe 113 cannot inhale external gas, so the negative pressure in the negative pressure chamber 131 will increase. Correspondingly, the negative pressure in the first air intake pipe 112 will also increase. Therefore, the negative pressure in the first air intake pipe 112 enters the piston tube 155 through the air supply pipe 159, overcomes the elastic force of the connecting spring, and thus sucks the piston plate 157 in the piston tube 155, causing the piston plate 157 to move downward. When the piston plate 157 moves downward, the piston plate 157 drives the water retaining column 156 to move downward. The downward movement of the water retaining column 156 causes the depression 158 to separate from the drain pipe 153. At this time, the water retaining column 156 blocks the drain pipe 153, so that the water in the drain pipe 153 cannot be discharged normally.

[0066] When there is ore in the crusher 200, the crushed ore falls from the discharge port 202 and hits the receiving plate 165, forcing the receiving plate 165 to continuously drive the cover plate 161 to rotate toward the end away from the second air intake pipe 113, so that the second air intake pipe 113 is in an open state, and the second air intake pipe 113 can suck in external gas. Correspondingly, the negative pressure at the negative pressure chamber 131 will be reduced, making it difficult to overcome the elastic force of the connecting spring, and it will also be impossible to suck the piston plate 157 downward. At this time, the water in the drain pipe 153 can flow normally through the recess 158 to achieve watering of the ore at the feed port 201.

[0067] It can be seen that since the second air intake pipe 113 is located below the discharge port 202, the control mechanism 160 can control the negative pressure of the negative pressure chamber 131 according to the state of the ore crusher 200, so that when the crusher 200 is not crushing the ore, the water in the liquid storage tank 151 is controlled to stop flowing, thereby further avoiding the waste of water resources.

[0068] The second object of the present invention is to provide a dust treatment method for a dust treatment system for ore crushing processing, comprising the following method steps:

[0069] S1, the spray mechanism 120 sprays the external water source into the air duct 110 in the form of mist, and the fan 111 blows the mist droplets in the air duct 110;

[0070] S2, the blown droplets are accelerated by the guide member 130 disposed in the air delivery pipe 110, so that negative pressure is generated around the guide member 130, thereby sucking the external dust into the air delivery pipe 110 through the first suction pipe 112 and the second suction pipe 113, and contacting with the droplets in the air delivery pipe 110;

[0071] S3. After the dust contacts the mist droplets, the mist droplets containing dust collide with the side wall of the baffle 141, so that the mist droplets containing dust stop on the side wall of the baffle 141, and under the action of gravity, water and dust flow downward into the liquid storage tank 151 together, and then are discharged to the feed port 201 through the drain pipe 153.

[0072] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dust treatment system for ore crushing processing, comprising an air delivery pipe (110) arranged on the top of a base (100), wherein the air delivery pipe (110) is provided with a fan (111) for causing the air inside the air delivery pipe (110) to flow, and a spray mechanism (120) for spraying water from an external source in the form of mist, wherein when the air flow passes through the spray mechanism (120), the air flow drives the mist droplets to flow toward the end of the air delivery pipe (110); characterized in that: The air duct (110) is also provided with a flow guide (130) for increasing the velocity of the air flow in the air duct (110), and the flow guide (130) is of a conical structure; the air duct (110) is connected to a first air intake pipe (112) having one end extending to a feed port (201) of a crusher (200) and a second air intake pipe (113) having one end extending to a discharge port (202) of the crusher (200) at the flow guide (130); when the air flow in the air duct (110) is accelerated by the flow guide (130), a negative pressure cavity (131) is formed on the periphery of the flow guide (130), so that dust around the first air intake pipe (112) and the second air intake pipe (113) is sucked into the air duct (110) under the action of negative pressure, and the dust comes into contact with the mist droplets in the air duct (110); A liquid collecting mechanism (140) is provided inside the air delivery pipe (110) on the path of the air flow, and the liquid collecting mechanism (140) is used to intercept droplets in the air flow and guide the intercepted droplets to the feed port (201) of the crusher (200).

2. The dust treatment system for ore crushing processing according to claim 1 is characterized in that: The fan (111) is arranged at the bottom end of the air delivery pipe (110), the spray mechanism (120) is located above the fan (111), the flow guide (130) is located above the spray mechanism (120), and the liquid collection mechanism (140) is located above the flow guide (130); The spray mechanism (120) comprises a spray pipe (121) fixedly arranged inside the air supply pipe (110), and a water inlet pipe (122) having one end connected to the spray pipe (121) and the other end penetrating the air supply pipe (110); the interiors of the spray pipe (121) and the water inlet pipe (122) are both hollow structures, the top of the spray pipe (121) is connected to an atomizing nozzle, and one end of the water inlet pipe (122) is connected to an external water source; The top end of the air delivery pipe (110) is bent toward one side, and the bending direction is toward the path of the ore entering the feed port (201).

3. The dust treatment system for ore crushing processing according to claim 1 is characterized in that: The flow guide (130) is a tube body with a large diameter at the bottom and a small diameter at the top, and the outer wall of the bottom end of the tube body is fixedly fitted with the inner wall of the air delivery pipe (110); when the airflow in the air delivery pipe (110) is discharged through the top of the tube body, a negative pressure chamber (131) is formed between the outer ring of the tube body and the inner ring of the air delivery pipe (110); The connection point between the first air intake pipe (112) and the air supply pipe (110), and the connection point between the second air intake pipe (113) and the air supply pipe (110) are both located in the negative pressure chamber (131) and are connected to the negative pressure chamber (131).

4. The dust treatment system for ore crushing processing according to claim 1 is characterized in that: The liquid collecting mechanism (140) comprises a baffle (141) fixedly arranged on the inner wall of the air delivery pipe (110), and a liquid guiding mechanism (150) for guiding the liquid at the baffle (141) to the feed port (201), wherein: The height of the baffle (141) is smaller than the diameter of the air delivery pipe (110), so that the gas in the air delivery pipe (110) can continue to flow through the gap between the baffle (141) and the air delivery pipe (110).

5. The dust treatment system for ore crushing processing according to claim 4 is characterized in that: A plurality of baffles (141) are provided. Among the plurality of baffles (141), a portion of the baffles (141) are fixedly arranged at the top of the air delivery pipe (110), and another portion of the baffles (141) are fixedly arranged at the bottom of the air delivery pipe (110). The two portions of the baffles (141) are arranged alternately, so that a continuous "S"-shaped channel is formed inside the air delivery pipe (110) at the baffles (141).

6. The dust treatment system for ore crushing processing according to claim 4 is characterized in that: The liquid flow guiding mechanism (150) comprises a liquid storage tank (151) fixedly arranged on the side wall of the air delivery pipe (110); a connecting pipe (152) is arranged between the top of the liquid storage tank (151) and the air delivery pipe (110) to connect the two, so that the mist droplets on the side wall of the baffle (141) flow into the liquid storage tank (151) through the connecting pipe (152); The connecting pipe (152) is located on one side of the baffle (141) close to the middle of the base (100); The bottom of the liquid storage tank (151) is connected to a drainage pipe (153) having one end extending to the feed inlet (201).

7. The dust treatment system for ore crushing processing according to claim 6, characterized in that: The drainage pipe (153) is provided with a valve assembly, which is in communication with the negative pressure chamber (131) and is used to control the drainage pipe (153) to be opened or closed according to the change of the pressure in the negative pressure chamber (131); the end of the second air intake pipe (113) is provided with a control mechanism (160), and when there is no ore at the discharge port (202), the control mechanism (160) closes the second air intake pipe (113) to change the pressure in the negative pressure chamber (131).

8. The dust treatment system for ore crushing processing according to claim 7, characterized in that: A straight pipe (154) is longitudinally provided in the middle of the drainage pipe (153), the bottom end of the straight pipe (154) is connected to a piston pipe (155), a piston plate (157) is longitudinally slidably provided in the piston pipe (155), a connecting spring is provided between the bottom end of the piston plate (157) and the bottom of the piston pipe (155) to elastically connect the two, and a water retaining column (156) is fixedly provided at the top end to slide into the straight pipe (154); The middle part of the water retaining column (156) shrinks inwards to form a depression (158). Under normal conditions, the depression (158) is located at the drain pipe (153) to allow the liquid in the drain pipe (153) to flow normally. The bottom end of the piston tube (155) is connected to an air supply pipe (159) for providing negative pressure inside the piston tube (155) when the second air intake pipe (113) is in a closed state; One end of the air delivery pipe (159) is in communication with the negative pressure chamber (131).

9. The dust treatment system for ore crushing processing according to claim 7, characterized in that: The control mechanism (160) comprises a cover plate (161) rotatably arranged at one end of the second air intake pipe (113); a return spring (164) is arranged between the cover plate (161) and the second air intake pipe (113) to elastically connect the two; a receiving plate (165) located below the discharge port (202) is fixedly arranged on the side of the cover plate (161) away from the second air intake pipe (113); under normal conditions, the cover plate (161) blocks one end of the second air intake pipe (113).

10. A dust treatment method for a dust treatment system for ore crushing processing as claimed in any one of claims 6 to 9, characterized in that: The method comprises the following steps: S1, the spray mechanism (120) sprays the external water source into the air delivery pipe (110) in the form of mist, and the fan (111) blows the mist droplets in the air delivery pipe (110); S2, the blown mist droplets are accelerated by a flow guide (130) disposed in the air delivery pipe (110), so that negative pressure is generated on the periphery of the flow guide (130), thereby sucking external dust into the air delivery pipe (110) through the first air intake pipe (112) and the second air intake pipe (113), and contacting the mist droplets in the air delivery pipe (110); S3. After the dust contacts the mist droplets, the mist droplets containing the dust collide with the side wall of the baffle (141), so that the mist droplets containing the dust stop on the side wall of the baffle (141), and under the action of gravity, the water and the dust flow downward into the liquid storage tank (151) and then are discharged to the feed port (201) through the drain pipe (153).

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