Electric control equipment of mining flexible tunneling drill carriage

Abstract

The invention discloses electric control equipment of a mining flexible tunneling drill carriage, and relates to the technical field of electric control equipment. A water inlet pipe, a cooling water pipe and a dust removal assembly are further included; the dust removal assembly comprises a shell, a nozzle, a driving pump, a connecting pipe I, a fan, a connecting pipe II, a nozzle and a dust removal cavity; the cooling water pipe is located in the box body, and the water inlet pipe is communicated with the cooling water pipe and the liquid conveying pipe; the driving pump is fixed in the box body; two ends of the driving pump are connected to the cooling water pipe and the connecting pipe I; the shell is fixed to the top of the box. The fan is fixed on one side of the dust removal cavity; the second connecting pipe is fixedly connected to the first connecting pipe, and the second connecting pipe extends into the dust removal cavity; the spray head is fixed on the connecting pipe II; the driving pump drives the cooling liquid in the cooling water pipe to be sprayed into the dust removal cavity from the nozzle; cooling liquid for heat dissipation in the electric control box can be sprayed out to form water mist, the water mist can be attached to the surface of dust to wet the dust, and the dust is settled under the action of the gravity of the water mist.

Description

Technical Field

[0001] The invention relates to the technical field of electric control equipment, in particular to electric control equipment of a flexible mining drilling vehicle. Background Art

[0002] Flexible mining tunneling drills are mainly used for tunneling construction in metal mines, coal mine tunnels, culverts and other fields. They are suitable for drilling and blasting operations in narrow tunnels. The drill bit will generate a lot of heat when the tunneling drill is working. The drill is fixed with a water pipe for conveying coolant to cool the drill bit. The electric control box is the core component of the tunneling drill's electronic control equipment, which is responsible for receiving operating instructions and controlling the working status of each motor.

[0003] A large amount of dust will be generated during the excavation of coal mine tunnels. This dust is mainly composed of coal dust and rock dust. Due to the narrow space of the tunnel, the dust will diffuse in the air in the tunnel, which will not only affect the health of the miners, but also increase the wear of mechanical equipment and affect the service life of mechanical equipment. Summary of the invention

[0004] The embodiment of the present application solves the problem in the prior art that a large amount of dust will be generated during the excavation of coal mine tunnels by providing an electronic control device for a flexible mining drilling vehicle. The dust will diffuse in the air in the narrow tunnels, which will not only affect the health of the miners, but also increase the wear of mechanical equipment and affect the service life of the mechanical equipment. The coolant used for heat dissipation inside the electric control box is sprayed out to form fine water droplets. The water droplets adhere to the surface of the dust to moisten the dust, and the dust is settled under the action of its own gravity, thereby achieving the effect of eliminating dust.

[0005] The embodiment of the present application provides an electric control device for a mining flexible tunneling drill vehicle, including a main body assembly, the main body assembly including a box, an electrical component and a fixing plate, the electrical component is fixed in the box, the fixing plate fixes the box to the tunneling drill vehicle, and a fluid delivery pipe is fixed to the tunneling drill vehicle;

[0006] It also includes a water inlet pipe, a cooling water pipe and a dust removal assembly;

[0007] The dust removal assembly includes a housing, a nozzle, a driving pump, a connecting pipe 1, a fan, a connecting pipe 2, a nozzle and a dust removal chamber;

[0008] The cooling water pipe is located in the box body, the water inlet pipe is connected to the cooling water pipe, and the other end of the water inlet pipe is connected to the liquid infusion pipe;

[0009] The driving pump is fixed in the box, and the two ends of the driving pump are respectively fixedly connected to the cooling water pipe and the connecting pipe 1;

[0010] The shell is fixed on the top of the box body;

[0011] The dust removal chamber is located in the housing, and the dust removal chamber is a rectangular chamber with openings on both sides, and the fan is fixed at an opening on one side of the dust removal chamber;

[0012] The second connecting pipe is fixedly connected to the first connecting pipe, and the second connecting pipe passes through the bottom of the housing and extends into the dust removal chamber;

[0013] The spray head is fixed on the top of the second connecting pipe, and a plurality of nozzles are fixed on the spray head;

[0014] The driving pump drives the coolant in the cooling water pipe to spray out from the nozzle on the spray head into the dust removal chamber.

[0015] Furthermore, blocking nets are fixed at the openings at both ends of the dust removal chamber, and the blocking nets are fixedly connected to the housing;

[0016] The bottom of the dust removal chamber is an inclined surface;

[0017] An interception frame is fixed near the outlet of the dust removal chamber, and a plurality of interception rods are fixed on the interception frame;

[0018] The interception bar is a rectangular bar, and fluff for intercepting a mixture of water mist and dust is fixed on the interception bar;

[0019] A drain pipe is fixedly connected to the bottom of the shell, and the drain pipe is located between the blocking net and the interception frame. The drain pipe is used to discharge the coolant remaining in the dust removal chamber.

[0020] Furthermore, the dust removal assembly also includes a water spray pipe and a dust concentration sensor;

[0021] The water spray pipes are a plurality of cylindrical pipes with closed tops;

[0022] The dust concentration sensor is fixed on one side of the top of the housing close to the exhaust fan, and the dust concentration sensor is connected to the electrical component through a wire;

[0023] The connecting pipe 1 is connected to the cooling water pipe, and a plurality of driving pumps connected to the connecting pipe 1 are fixed on the connecting pipe 1;

[0024] The water spray pipe is fixedly connected to the driving pump through a second connecting pipe, and a plurality of nozzles are fixed on the side wall of the water spray pipe, and the nozzles make the coolant entering the water spray pipe form water mist and enter the dust removal chamber;

[0025] The water spray pipe is vertically fixed in the dust removal chamber, and the top of the water spray pipe is fixed on the top wall of the dust removal chamber.

[0026] Furthermore, the dust removal assembly also includes a collection box, and the collection box is fixed to the bottom of the housing;

[0027] The collecting box is connected to the dust removal chamber, and the coolant in the dust removal chamber can flow into the collecting box;

[0028] A drainage pipe for communicating the collection box with the outside is fixedly connected to the side wall of the collection box.

[0029] Furthermore, the water spray pipes are all provided with sealing rings;

[0030] The sealing ring is fixed on the inner bottom surface of the dust removal chamber;

[0031] The sealing ring is an annular rubber ring, and the sealing ring is used to prevent the coolant from leaking out of the dust removal chamber.

[0032] Furthermore, it also includes a magnetization assembly, which includes a fixing frame, a water pipe, a water suction pump, a magnet block, a joint pipe and a placement plate;

[0033] The water pipe has multiple branches, and each branch end of the water pipe is fixedly connected to a joint pipe;

[0034] The fixing frame is fixed on the top of the shell, and a magnet block is fixed on the fixing frame;

[0035] The water pipe passes through between the magnet blocks;

[0036] The water delivery pipe is fixedly connected to the water spray pipe through a joint pipe, and the other end of the water delivery pipe is fixedly connected to the water suction pump;

[0037] The water suction pump is fixed in the collection box by a placement plate, and the water suction pump is used to drive the coolant in the collection box into the water delivery pipe;

[0038] The magnet blocks are two permanent magnets; the contact surface between the magnet blocks and the water pipe is in a semicircular arc shape.

[0039] Furthermore, a baffle is fixed inside the water spray pipe;

[0040] The water spray pipe is a cylindrical pipe with openings at both ends;

[0041] The baffle separates the water spray pipe into two parts, an upper part and a lower part;

[0042] The upper part of the water spray pipe is connected to the water delivery pipe, and the lower part of the water spray pipe is connected to the connecting pipe through the driving pump;

[0043] The connecting pipe 1 is connected to the cooling water pipe;

[0044] The upper half of the water spray pipe is smaller than the lower half.

[0045] Furthermore, the connecting pipe 1 is composed of a plurality of branch pipes connected through a main pipe, and the branch pipes are parallel to each other;

[0046] A plurality of connecting pipes 2 are fixed on each of the branch pipes, and the connecting pipes 2 and the branch pipes are perpendicular to each other;

[0047] The main pipeline is connected with the cooling water pipe through the driving pump.

[0048] Furthermore, the connecting pipe 1 may extend to the outside of the box;

[0049] The driving pump is fixed to the connecting pipe 1 located outside the box body;

[0050] The nozzle is fixed on the driving pump through the second connecting pipe, and the driving pump is used to drive the coolant to spray out from the nozzle;

[0051] The nozzle is located at a side close to the fan, and the water outlet of the nozzle on the nozzle faces upward.

[0052] Furthermore, a partition is fixed in the box;

[0053] The driving pump is located on the upper side of the partition, and the electrical components are located on the lower side of the partition;

[0054] The box body is rotatably connected with a door panel.

[0055] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0056] The coolant in the cooling water pipe is transported to the nozzle by driving the pump, and the coolant is sprayed from the nozzle into the dust removal chamber to form water mist. The fan sucks the dust-containing air into the dust removal chamber, so that the dust and water mist are mixed in the dust removal chamber, which effectively solves the problem of dust generated during coal mine tunneling in the prior art, which will diffuse in the air in the tunnel, affect the health of miners, and increase the wear of mechanical equipment, thereby realizing the spraying of the coolant used for heat dissipation inside the electric control box to form water mist. The water mist will adhere to the surface of the dust to moisten the dust, and settle the dust under the action of its own gravity, thereby eliminating the dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic diagram of the overall structure of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0058] Figure 2 The electric control device of the flexible mining drilling vehicle of the present invention Figure 1 A schematic cross-sectional structure diagram of ;

[0059] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0060] Figure 4It is a schematic diagram of the connection relationship between the cooling water pipe and the connecting pipe of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0061] Figure 5 This is a schematic structural diagram of the connection relationship between the nozzle and the housing of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0062] Figure 6 It is a schematic structural diagram of the connection relationship between the nozzle and the connecting pipe of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0063] Figure 7 It is a schematic structural diagram of the connection relationship between the water spray pipe and the housing of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0064] Figure 8 It is a schematic structural diagram of the connection relationship between the water spray pipe and the driving pump of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0065] Fig. 9 This is a schematic diagram of the positional relationship between the magnet block and the water pipe of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0066] Fig.10 It is a schematic diagram of the overall cross-sectional structure of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0067] Fig.11 It is a schematic structural diagram of the connection relationship between the baffle plate and the water spray pipe of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0068] Fig.12 This is a schematic diagram of the connection relationship between the collection box and the shell of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0069] Fig.13 It is a structural schematic diagram of the connection relationship between the magnetization component and the housing of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0070] Fig.14 It is a schematic diagram of the specific structure of the magnetization component of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0071] Fig.15 It is a schematic diagram of the interception frame structure of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0072] Fig.16 It is a schematic structural diagram of the connection relationship between the water spray pipe and the connecting pipe of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0073] Fig.17 It is a schematic structural diagram of the connection relationship between the water spray pipe and the dust removal chamber of the electric control equipment of the flexible mining drilling vehicle of the present invention;

[0074] Fig.18 The present invention is a schematic structural diagram of the connection relationship between the dust concentration sensor and the housing of the electric control equipment of the flexible mining drilling vehicle.

[0075] In the figure: 100, main assembly; 101, box; 102, water inlet pipe; 103, fixing plate; 104, door panel; 105, electrical components; 106, partition; 107, cooling water pipe; 108, infusion pipe;

[0076] 200, dust removal assembly; 201, housing; 202, blocking net; 203, nozzle; 204, interception frame; 205, drain pipe; 206, drive pump; 207, connecting pipe 1; 208, fan; 209, connecting pipe 2; 210, water spray pipe; 211, nozzle; 212, collection box; 213, interception rod; 214, sealing ring; 215, dust removal chamber; 216, dust concentration sensor;

[0077] 300, magnetization assembly; 301, fixing frame; 302, water pipe; 303, water suction pump; 304, magnet block; 305, joint pipe; 306, placement plate; 307, baffle;

[0078] 2071, branch pipe; 2072, main pipe. DETAILED DESCRIPTION

[0079] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0080] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0081] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0082] Embodiment 1: Figures 1 to 4 and Figure 6As shown, the present application proposes an electric control device for a flexible mining drilling vehicle, including a main component 100, the main component 100 includes a box 101, an electrical component 105 and a fixing plate 103;

[0083] The electrical component 105 is fixed in the box 101. The electrical component 105 is responsible for receiving operation instructions and controlling the working state of each motor. The fixing plate 103 fixes the box 101 on the tunneling drill vehicle. The box 101 is located on the side of the cab of the tunneling drill vehicle. A liquid infusion pipe 108 is fixed on the tunneling drill vehicle. The liquid infusion pipe 108 is connected to the water supply pipe in the mine. The liquid infusion pipe 108 is transported with coolant. When the tunneling drill vehicle is working, the coolant in the liquid infusion pipe 108 is transported to the drill bit for cooling the drill bit.

[0084] It also includes a water inlet pipe 102, a cooling water pipe 107 and a dust removal assembly 200; the dust removal assembly 200 includes a housing 201, a nozzle 203, a driving pump 206, a connecting pipe 1 207, a fan 208, a connecting pipe 209, a nozzle 211 and a dust removal chamber 215;

[0085] The cooling water pipe 107 is located in the box body 101. The cooling water pipe 107 passes through the electrical components 105. The cooling water pipe 107 can take out the heat generated by the electrical components 105 when they are running. The water inlet pipe 102 is connected to the cooling water pipe 107. The other end of the water inlet pipe 102 is connected to the liquid infusion pipe 108. Part of the coolant in the liquid infusion pipe 108 enters the cooling water pipe 107 through the water inlet pipe 102.

[0086] The driving pump 206 is fixed in the box body 101, and the two ends of the driving pump 206 are respectively fixedly connected to the cooling water pipe 107 and the connecting pipe 1 207, and the driving pump 206 drives the coolant in the cooling water pipe 107 to enter the connecting pipe 1 207;

[0087] The housing 201 is fixed on the top of the box body 101; the dust removal chamber 215 is located in the housing 201, and the dust removal chamber 215 is a rectangular chamber with openings on both sides. The fan 208 is fixed at the opening of the dust removal chamber 215 facing the working surface of the excavation drilling vehicle. The dust generated when the excavation drilling vehicle is working is sucked into the dust removal chamber 215 by the fan 208;

[0088] The connecting pipe 209 is fixedly connected to the connecting pipe 1 207, and the connecting pipe 209 is connected to the connecting pipe 1 207, so that the coolant in the connecting pipe 1 207 can enter the connecting pipe 209, and the connecting pipe 209 passes through the bottom of the shell 201 and extends into the dust removal chamber 215; the nozzle 203 is fixed on the top of the connecting pipe 209, and the nozzle 203 is connected to the connecting pipe 209, and a plurality of nozzles 211 are fixed on the nozzle 203, and the coolant is sprayed out from the nozzles 211 on the nozzle 203, and the nozzles 211 can form a fine water mist of the coolant; the driving pump 206 drives the coolant in the cooling water pipe 107 to be sprayed from the nozzles 211 on the nozzle 203 into the dust removal chamber 215, and the water mist adheres to the dust to moisten the dust, and the dust settles under the action of its own gravity, thereby achieving the effect of eliminating dust.

[0089] Preferably, Figure 1 and Figure 5 As shown, blocking nets 202 are fixed at the openings at both ends of the dust removal chamber 215. The blocking nets 202 are fixedly connected to the outer shell 201. The blocking nets 202 are woven from metal wires. The dust generated when the excavation drilling vehicle is working can pass through the blocking nets 202. The blocking nets 202 can prevent coal or rock fragments from entering the dust removal chamber 215 when the excavation drilling vehicle is working, thereby avoiding damage to the blades of the high-speed rotating fan 208.

[0090] Preferably, the bottom of the dust removal chamber 215 is an inclined surface, and water droplets formed after the water mist and dust sprayed from the nozzle 211 mix in the dust removal chamber 215 can flow along the inclined surface of the bottom of the dust removal chamber 215. A drain pipe 205 is fixedly connected to the bottom of the outer shell 201, and the drain pipe 205 is located between the blocking net 202 and the interception frame 204. The interception frame 204 is located at the lowest point of the inclined bottom surface of the dust removal chamber 215. The coolant flowing along the inclined surface of the bottom of the dust removal chamber 215 can flow to the drain pipe 205, and the drain pipe 205 is used to discharge the coolant remaining in the dust removal chamber 215.

[0091] Preferably, Fig.15 As shown, an interception frame 204 is fixed near the outlet of the dust removal chamber 215, and a plurality of interception rods 213 are fixed on the interception frame 204; the interception rods 213 are rectangular rods, and a mixture formed by the mixing of water mist and dust in the dust removal chamber 215 will be partially blown out from the outlet of the dust removal chamber 215 under the action of the wind force of the fan 208, and fluff for intercepting the mixture of water mist and dust is fixed on the interception rods 213, and the fluff can intercept the mixture of dust and water mist, so that it condenses into water droplets and drips into the dust removal chamber 215, and the condensed water droplets are discharged from the drain pipe 205 at the bottom of the dust removal chamber 215.

[0092] Preferably, a partition 106 is fixed in the box body 101; the drive pump 206 is located on the upper side of the partition 106 and fixed on the partition 106, a gap is left between the drive pump 206 and the partition 106, the electrical component 105 is located on the lower side of the partition 106, a rectangular rod is fixed on the inner wall of the box body 101, and the electrical component 105 is fixed on the rectangular rod.

[0093] Preferably, a door panel 104 is rotatably connected to the box body 101, and the door panel 104 is provided with a lock. When the tunneling drill is working, the door panel 104 is kept in a closed state. The humidity in the mine tunnel is relatively high, and a sealing rubber strip is fixed at the connection between the door panel 104 and the box body 101, which can prevent moisture from entering the box body 101 and causing damage to the electrical components 105.

[0094] Preferably, the cooling water pipe 107 is a copper pipe that is bent multiple times, and the coolant in the cooling water pipe 107 can better absorb the heat generated by the electrical component 105 during operation when flowing.

[0095] Preferably, Figure 4 As shown, the connecting pipe 1 207 is composed of a plurality of branch pipes 2071 connected through a main pipe 2072, and the branch pipes 2071 are parallel to each other; a plurality of connecting pipes 209 are fixed on each branch pipe 2071, and the connecting pipe 209 and the branch pipes 2071 are perpendicular to each other; the main pipe 2072 is connected to the cooling water pipe 107 through the driving pump 206, and the coolant flows into each branch pipe 2071 through the main pipe 2072, and then flows from the branch pipe 2071 into the connecting pipe 2 209.

[0096] Preferably, the number of branch pipes 2071 is 3 to 4, and the intervals between the branch pipes 2071 are the same. Each branch pipe 2071 is fixedly connected to 6 to 8 connecting pipes 209, and each connecting pipe 209 is fixedly connected to a nozzle 203, so that the water mist sprayed by the nozzle 203 can be evenly distributed in the dust removal chamber 215, thereby allowing the dust entering the dust removal chamber 215 to be moistened.

[0097] Preferably, Figure 6 As shown, the nozzle 203 is disc-shaped, and 12 to 18 nozzles 211 are fixed on the upper side of the nozzle 203. The water outlet diameter of each nozzle 211 is 0.35 mm, so that the coolant sprayed from the nozzle 211 can form a fine water mist, and the dust entering the dust removal chamber 215 can be better moistened, thereby improving the dust removal effect of the water mist.

[0098] Preferably, the driving pump 206 is a high-pressure water pump, and the working pressure range of the driving pump 206 is 12 to 14 MPa. The driving pump 206 can maintain a stable water pressure for the coolant entering the connecting pipe 207, so that the small water droplets sprayed from the nozzle 211 are uniform in size, thereby ensuring the stability of the dust removal effect.

[0099] Preferably, Figure 5 and Figure 6 As shown, a sealing ring 214 is fixed on the connecting pipe 209, and the sealing ring 214 is a rubber ring. The sealing ring 214 fits the bottom surface of the dust removal chamber 215, which can prevent the dust in the dust removal chamber 215 and the water droplets formed by the water mist sprayed by the nozzle 203 from entering the lower box body 101. A water outlet is opened on the side wall of the box body 101 on the upper side of the partition 106. When water leaks from the dust removal chamber 215 into the box body 101, the water can be discharged from the water outlet. The water outlet is usually closed by a rubber plug, which can prevent dust, rock debris and other debris from entering the cavity on the upper side of the partition 106 in the box body 101.

[0100] When the electric control device of the flexible mining drilling vehicle of the embodiment of the present application is actually used:

[0101] Under the action of the driving pump 206, the coolant in the infusion pipe 108 enters the cooling water pipe 107 through the water inlet pipe 102. The driving pump 206 drives the coolant in the cooling water pipe 107 to enter the connecting pipe 1 207. When the coolant flows into the cooling water pipe 107, the heat generated by the operation of the electrical component 105 is taken out. The coolant flows into each branch pipe 2071 through the main pipe 2072, and then flows from the branch pipe 2071 into the nozzle 203 through the connecting pipe 2 209. The coolant entering the nozzle 203 is sprayed from the nozzle 211 into the dust removal chamber 215 to form water mist. The opening position of the dust removal chamber 215 is On the working face facing the tunnel drilling vehicle, the fan 208 is fixed at the opening of the dust removal chamber 215. The dust generated when the tunnel drilling vehicle is working will be sucked into the dust removal chamber 215 by the fan 208. The dust entering the dust removal chamber 215 is mixed with the water mist sprayed by the nozzle 211 to moisten the dust. The water droplets formed by the mixture of dust and water mist in the dust removal chamber 215 will flow along the inclined surface at the bottom of the dust removal chamber 215 to the drain pipe 205. The part of the dust and water mist mixture blown away by the fan 208 will be intercepted by the fluff on the intercepting rod 213 and condensed into water droplets. The formed water droplets will be discharged through the drain pipe 205 at the bottom of the dust removal chamber 215.

[0102] Embodiment 2: Considering that when a coal mine tunnel is being excavated, a tunneling drill is usually used to excavate the tunnel. When encountering rocks with higher hardness, the rocks need to be blasted. After the rocks with higher hardness are blasted, the tunneling drill is used to excavate the tunnel. Although only part of the rocks are blasted, the tunnel width is narrow, so a large amount of dust will be diffused in the limited tunnel space. When a large amount of dust enters the dust removal chamber 215, the water mist in the dust removal chamber 215 cannot completely wet the dust, causing part of the dust to be discharged from the outlet of the dust removal chamber 215, thereby affecting the dust removal effect in the tunnel. In view of the above problems, the embodiment of the present application adds a water spray pipe 210 and a dust concentration sensor 216 on the basis of the above embodiment, specifically:

[0103] like Figure 1 , Figure 7 , Figure 8 , Fig.16 , Fig.17 and Fig.18 As shown, the dust removal assembly 200 also includes a water spray pipe 210 and a dust concentration sensor 216;

[0104] The water spray pipes 210 are a plurality of cylindrical pipes with closed tops;

[0105] The dust concentration sensor 216 is fixed on the top of the housing 201 near the exhaust fan. The dust concentration sensor 216 can detect the dust concentration in the air. The dust concentration sensor 216 is connected to the electrical component 105 through a wire. The signal detected by the dust concentration sensor 216 is transmitted to the electrical component 105 through the wire.

[0106] The connecting pipe 1 207 is connected to the cooling water pipe 107, and a plurality of driving pumps 206 connected to the connecting pipe 1 207 are fixed on the connecting pipe 1 207; the electrical component 105 is provided with a control module, and the speed of the driving pump 206 is adjusted by the control module on the electrical component 105; the water spray pipe 210 is fixedly connected to the driving pump 206 through the connecting pipe 2 209, and the driving pump 206 is used to drive the coolant into the water spray pipe 210;

[0107] A plurality of nozzles 211 are fixed on the side wall of the water spray pipe 210, and the nozzles 211 spray the coolant in the water spray pipe 210 to form water mist; the water spray pipe 210 is vertically fixed in the dust removal chamber 215, so that the water mist sprayed by the nozzles 211 is evenly distributed in the dust removal chamber 215, and the top of the water spray pipe 210 is fixed on the top wall of the dust removal chamber 215.

[0108] Preferably, the water spray pipes 210 are spaced at the same intervals, and each water spray pipe 210 is provided with 30 to 36 nozzles 211, which are distributed around the side wall of the water spray pipe 210, and the intervals between each nozzle 211 are the same. The nozzles 211 on adjacent water spray pipes 210 are staggered, which can avoid the water mist sprayed from the nozzles 211 on adjacent water spray pipes 210 from conflicting with each other;

[0109] Preferably, the dust concentration sensor 216 is a laser particle sensor, which can detect tiny particles in the air. The dust concentration sensor 216 can transmit the detected signal to the electrical component 105 in the box 101, and the electrical component 105 includes a signal receiving and control module. The electrical component 105 can adjust the rotation speed of the driving pump 206 and the fan 208. The driving pump 206 can adjust the rotation speed of the driving pump 206 and the fan 208 according to the signal changes detected by the dust concentration sensor 216. By controlling the rotation speed of the fan 208, the amount of air entering the dust removal chamber 215 is controlled, and by controlling the rotation speed of the driving pump 206, the amount of water sprayed by the nozzle 203 is controlled.

[0110] Preferably, the electrical component 105 for controlling the rotation speed of the driving pump 206 and the fan 208 is a programmable logic controller, which can also receive the signal detected by the dust concentration sensor 216. The electrical component 105 can also control other motors on the drilling rig.

[0111] Preferably, the water spray pipe 210 is sleeved with a sealing ring; the sealing ring is fixed on the inner bottom surface of the dust removal chamber 215; the sealing ring is an annular rubber ring, and the sealing ring is used to prevent the coolant from leaking out of the dust removal chamber 215.

[0112] Preferably, Figure 7 As shown, the connecting pipe 207 can extend to the outside of the box body 101, and the connecting pipe 207 is composed of a branch pipe 2071 and a main pipe 2072. The branch pipe 2071 on the connecting pipe 207 can pass through the side wall of the box body 101 and extend to the outside of the box body 101; the connecting pipe 207 is located on the outer part of the box body 101 and is fixed with a driving pump 206, and the driving pump 206 is fixed on the branch pipe 2071; the nozzle 203 is fixed on the driving pump 206 through the connecting pipe 209, and the driving pump 206 is used to drive the coolant to spray out from the nozzle 203; the nozzle 203 is located on the side close to the fan 208, and the water outlet of the nozzle 211 on the nozzle 203 faces the upper side, and the coolant sprayed from the nozzle 203 is first mixed with the dust entering the dust removal chamber 215 to preliminarily wet the dust.

[0113] Preferably, the nozzle 203 located outside the box 101 is fixed to the second connecting pipe 209 by a threaded connection, so that when the nozzle 211 on the nozzle 203 is blocked, the nozzle 203 can be easily removed and cleaned, and the nozzle 203 can be replaced.

[0114] Preferably, the hole through which the branch pipe 2071 passes through the side wall of the box body 101 is sealed with a sealant, which can prevent external dust and moisture from entering the box body 101.

[0115] In actual use, on the basis of the above embodiment, the dust concentration sensor 216 located on the upper side of the shell 201 can detect the dust concentration in the tunnel. When blasting operations are carried out in the tunnel, a large amount of dust will be generated in the tunnel. After the dust concentration sensor 216 detects that the dust concentration in the tunnel has increased, it transmits the detected signal to the electrical component 105. The programmable logic controller in the electrical component 105 adjusts the speed of the fan 208 and the drive pump 206 according to the detected signal. The increase in the speed of the fan 208 can allow more air to enter the dust removal chamber 215, and then more dust is sucked into the dust removal chamber 215. The increase in the speed of the drive pump 206 can enable the nozzle 211 to spray more water mist. At the same time, the water mist sprayed by the nozzle 203 located on the outside of the box 101 can pre-moisten the dust entering the dust removal chamber 215, and the dust entering the dust removal chamber 215 can be more easily moistened, thereby ensuring the dust removal effect when the dust concentration is high.

[0116] Embodiment 3: Considering that the dust generated during the excavation of coal mine tunnels is mainly coal dust or rock dust, coal dust is divided into hydrophilic coal dust and hydrophobic coal dust. Hydrophilic coal dust can be separated from the airflow after being moistened, while hydrophobic coal dust is not easily moistened, making it difficult to separate hydrophobic coal dust from the airflow, resulting in affected dust removal effect. The coal dust generated by lean coal and coking coal is hydrophobic coal dust. Coking coal seams are often encountered during the excavation of coal mine tunnels. Coking coal dust is generated during tunnel excavation. Coking coal dust has strong viscosity, making it easy for coking coal dust to form coal slime when it meets water. Since the nozzle 211 has a very small diameter, the coking coal dust is easy to adhere to the nozzle 211, causing the nozzle 211 to be blocked, thereby affecting the dust removal effect. In view of the above problems, the embodiment of the present application adds a collection box 212 and a magnetization component 300 on the basis of the above embodiment, specifically:

[0117] like Figures 9 to 14 As shown, the dust removal assembly 200 further includes a collection box 212, which is fixed to the bottom of the housing 201; the collection box 212 is connected to the dust removal chamber 215, and the coolant sprayed from the nozzle 211 and falling into the dust removal chamber 215 can flow into the collection box 212 for storage;

[0118] It also includes a magnetization assembly 300, which includes a fixing frame 301, a water pipe 302, a water suction pump 303, a magnet block 304, a joint pipe 305 and a placement plate 306; the water pipe 302 has a plurality of branches, and the water pipe 302 transports the coolant in the collection box 212 to the dust removal chamber 215, and each branch end of the water pipe 302 is fixedly connected to a joint pipe 305, and the joint pipe 305 is connected to the dust removal chamber 215;

[0119] The fixing frame 301 is fixed on the top of the housing 201, and a magnet block 304 is fixed on the fixing frame 301; the water pipe 302 passes through between the magnet blocks 304, and when the water in the water pipe 302 flows through between the magnet blocks 304, the magnet blocks 304 magnetize the water flow;

[0120] The water pipe 302 is fixedly connected to the water spray pipe 210 through the joint pipe 305, and the other end of the water pipe 302 is fixedly connected to the water suction pump 303; the water suction pump 303 is fixed in the collection box 212 by the placement plate 306, and the water suction pump 303 is used to drive the coolant in the collection box 212 into the water pipe 302, and then enters the water spray pipe 210 through the water pipe 302, and forms water mist through the nozzle 203 on the water spray pipe 210 and enters the dust removal chamber 215.

[0121] Preferably, Fig.11 As shown, a baffle 307 is fixed inside the water spray pipe 210; the water spray pipe 210 is a cylindrical tube with openings at both ends; the baffle 307 divides the water spray pipe 210 into two parts, an upper part and an lower part; the upper part of the water spray pipe 210 is connected to the water pipe 302, and the coolant stored in the collection box 212 is sprayed out through the nozzle 203 in the upper part of the water spray pipe 210, and the lower part of the water spray pipe 210 is connected to the connecting pipe 207 through the driving pump 206, and the connecting pipe 207 is connected to the cooling water pipe 107. Driven by the driving pump 206, the coolant in the cooling water pipe 107 is sprayed out through the lower part of the water spray pipe 210.

[0122] Preferably, the upper part of the water spray pipe 210 is smaller than the lower part, the nozzle 211 fixed on the upper part of the water spray pipe 210 has a diameter of 0.55 mm, and the nozzle 211 fixed on the lower part of the water spray pipe 210 has a diameter of 0.35 mm. The water mist sprayed from the nozzle 211 in the upper part of the water spray pipe 210 can be mixed with the water mist sprayed from the nozzle 211 in the lower part of the water spray pipe 210, so that the magnetized coolant can fill the dust removal chamber 215, so that the coking coal dust entering the dust removal chamber 215 can be wetted.

[0123] Preferably, Fig.13As shown, a drain pipe 205 is fixedly connected to the side wall of the collection box 212 near the top, and the drain pipe 205 is connected to the inside of the collection box 212. When too much coolant is collected in the collection box 212, the coolant can be discharged from the drain pipe 205. When the coolant in the collection box 212 is insufficient, water can be added to the collection box 212 through the drain pipe 205 to ensure that there is sufficient water in the collection box 212.

[0124] Preferably, the flow velocity of the coolant in the water pipe 302 is 2 m / s.

[0125] Preferably, a plastic hose is fixedly connected to the drain pipe 205, and the coolant flowing out of the drain pipe 205 is discharged to the ground in the tunnel through the plastic hose.

[0126] Preferably, Fig. 9 As shown, the magnet blocks 304 are two permanent magnets; the contact surface between the magnet blocks 304 and the water pipe 302 is semicircular. When the coolant in the water pipe 302 passes through the NS inter-pole gap between the two magnet blocks 304, the water flow cuts off the magnetic field lines at a certain flow rate, and the coolant can be magnetized to form magnetized water. The magnetized coolant enters the dust removal chamber 215 from the nozzle 211 on the water spray pipe 210 to form water mist. The water mist formed by the magnetized water can moisten hydrophobic coal dust such as coking coal.

[0127] In actual use, based on the above embodiment, the water mist sprayed by the nozzle 203 at the lower part of the water spray pipe 210 forms water droplets in the dust removal chamber 215, and then these water droplets flow into the collection box 212 along the inclined surface at the bottom of the dust removal chamber 215, and the absorption pump located in the collection box 212 sucks out the coolant flowing into the collection box 212. The drain pipe 205 on the side wall of the collection box 212 can discharge the coolant when there is too much coolant stored in the collection box 212. When there is less coolant stored in the collection box 212, water can be added to the collection box 212 through the drain pipe 205. The water pipe 302 transports the coolant to the upper part of the water spray pipe 210, and sprays it out from the nozzle 211 of the upper part of the water spray pipe 210 to form water mist. When this part of the coolant flows in the delivery pipe, it passes through the middle of the two fixed magnet blocks 304. The water flow cuts the magnetic lines of force at a certain flow rate to turn the coolant into magnetized water. The magnetized coolant can wet the hydrophobic coal dust such as coking coal entering the dust removal chamber 215, thereby improving the dust removal effect. At the same time, it can prevent the coking coal dust from adhering to the nozzle 211 of the water spray pipe 210 and causing the nozzle 211 to be blocked, thereby ensuring that the dust removal effect is not affected.

[0128] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric control device for a mining flexible tunneling drill vehicle, comprising a main assembly (100), wherein the main assembly (100) comprises a box (101), an electrical component (105) and a fixing plate (103), wherein the electrical component (105) is fixed in the box (101), and the fixing plate (103) fixes the box (101) to the tunneling drill vehicle, and a fluid delivery pipe (108) is fixed to the tunneling drill vehicle; It is characterized in that It also includes a water inlet pipe (102), a cooling water pipe (107) and a dust removal component (200); The dust removal assembly (200) comprises a housing (201), a nozzle (203), a driving pump (206), a connecting pipe 1 (207), a fan (208), a connecting pipe 2 (209), a nozzle (211) and a dust removal chamber (215); The cooling water pipe (107) is located in the box (101), the water inlet pipe (102) is connected to the cooling water pipe (107), and the other end of the water inlet pipe (102) is connected to the liquid infusion pipe (108); The driving pump (206) is fixed in the box body (101), and two ends of the driving pump (206) are respectively fixedly connected to the cooling water pipe (107) and the connecting pipe 1 (207); The housing (201) is fixed on the top of the box body (101); The dust removal chamber (215) is located in the housing, the dust removal chamber (215) is a rectangular chamber with openings on both sides, and the fan (208) is fixed at an opening on one side of the dust removal chamber (215); The second connecting pipe (209) is fixedly connected to the first connecting pipe (207), and the second connecting pipe (209) passes through the bottom of the outer shell (201) and extends into the dust removal chamber (215); The spray head (203) is fixed on the top of the second connecting pipe (209), and a plurality of nozzles (211) are fixed on the spray head (203); The driving pump (206) drives the cooling liquid in the cooling water pipe (107) to be sprayed from the nozzle (211) on the spray head (203) into the dust removal chamber (215).

2. The electric control device of the flexible mining drilling vehicle according to claim 1, characterized in that: Blocking nets (202) are fixed at the openings at both ends of the dust removal chamber (215), and the blocking nets (202) are fixedly connected to the outer shell (201); The bottom of the dust removal chamber (215) is an inclined surface; An interception frame (204) is fixed to the dust removal chamber (215) near the outlet, and a plurality of interception rods (213) are fixed to the interception frame (204); The interception rod (213) is a rectangular rod, and fluff for intercepting a mixture of water mist and dust is fixed on the interception rod (213); A drain pipe (205) is fixedly connected to the bottom of the shell (201); the drain pipe (205) is located between the blocking net (202) and the interception frame (204); and the drain pipe (205) is used to discharge the coolant remaining in the dust removal chamber (215).

3. The electric control device of the flexible mining drilling vehicle according to claim 1, characterized in that: The dust removal component (200) further includes a water spray pipe (210) and a dust concentration sensor (216); The water spray pipes (210) are a plurality of cylindrical pipes with closed tops; The dust concentration sensor (216) is fixed on a side of the top of the housing (201) close to the exhaust fan, and the dust concentration sensor (216) is connected to the electrical component (105) via a wire; The connecting pipe 1 (207) is connected to the cooling water pipe (107), and a plurality of driving pumps (206) connected to the connecting pipe 1 (207) are fixed on the connecting pipe 1 (207); The water spray pipe (210) is fixedly connected to the driving pump (206) via a second connecting pipe (209), and the driving pump (206) is used to drive the cooling liquid into the water spray pipe (210); A plurality of nozzles (211) are fixed on the side wall of the water spray pipe (210), and the nozzles (211) cause the coolant entering the water spray pipe (210) to form water mist and enter the dust removal chamber (215); The water spray pipe (210) is vertically fixed in the dust removal chamber (215), and the top of the water spray pipe (210) is fixed on the top wall of the dust removal chamber (215).

4. The electric control device of the flexible mining drilling vehicle according to claim 1, characterized in that: The dust removal assembly (200) further comprises a collection box (212), wherein the collection box (212) is fixed to the bottom of the housing (201); The collection box (212) is in communication with the dust removal chamber (215), and the cooling liquid in the dust removal chamber (215) can flow into the collection box (212); A drainage pipe (205) is fixedly connected to the side wall of the collection box (212) for communicating the collection box (212) with the outside.

5. The electric control device of the flexible mining drilling vehicle as claimed in claim 3, characterized in that: The water spray pipes (210) are all sleeved with sealing rings; The sealing ring is fixed on the inner bottom surface of the dust removal chamber (215); The sealing ring is an annular rubber ring and is used to prevent the cooling liquid from leaking out of the dust removal chamber (215).

6. The electric control device of the flexible mining drilling vehicle as claimed in claim 4, characterized in that: It also includes a magnetization assembly (300), wherein the magnetization assembly (300) includes a fixing frame (301), a water delivery pipe (302), a water suction pump (303), a magnet block (304), a joint pipe (305) and a placement plate (306); The water delivery pipe (302) has a plurality of branches, and each branch end of the water delivery pipe (302) is fixedly connected to a joint pipe (305); The fixing frame (301) is fixed on the top of the housing (201), and a magnet block (304) is fixed on the fixing frame (301); The water delivery pipe (302) passes through between the magnet blocks (304); The water delivery pipe (302) is fixedly connected to the water spray pipe (210) via a joint pipe (305), and the other end of the water delivery pipe (302) is fixedly connected to a water suction pump (303); The water suction pump (303) is fixed in the collection box (212) by a placement plate (306), and the water suction pump (303) is used to drive the cooling liquid in the collection box (212) to enter the water delivery pipe (302); The magnet blocks (304) are two permanent magnets; and the contact surfaces between the magnet blocks (304) and the water pipe (302) are semicircular.

7. The electric control device of the flexible mining drilling vehicle according to claim 6, characterized in that: A baffle (307) is fixed inside the water spray pipe (210); The water spray pipe (210) is a cylindrical tube with openings at both ends; The baffle (307) divides the water spray pipe (210) into two parts, an upper part and a lower part; The upper part of the water spray pipe (210) is connected to the water delivery pipe (302), the lower part of the water spray pipe (210) is connected to the connecting pipe 1 (207) through the driving pump (206), and the connecting pipe 1 (207) is connected to the cooling water pipe (107); The upper part of the water spray pipe (210) is smaller than the lower part.

8. The electric control device of the flexible mining drilling vehicle according to claim 1, characterized in that: The connecting pipe 1 (207) is composed of a plurality of branch pipes (2071) connected via a main pipe (2072), and the branch pipes (2071) are parallel to each other; A plurality of second connecting pipes (209) are fixed on each of the branch pipes (2071), and the second connecting pipes (209) and the branch pipes (2071) are perpendicular to each other; The main pipeline (2072) is connected to the cooling water pipe (107) via the driving pump (206).

9. The electric control device of the flexible mining drilling vehicle as claimed in claim 3, characterized in that: The connecting pipe 1 (207) can extend to the outside of the box body (101); The connecting pipe 1 (207) is located outside the box (101) and is fixed with a driving pump (206); The nozzle (203) is fixed to the driving pump (206) via a second connecting pipe (209), and the driving pump (206) is used to drive the cooling liquid to spray out from the nozzle (203); The spray head (203) is located on a side close to the fan (208), and a water outlet of a nozzle (211) on the spray head (203) faces upward.

10. The electric control device of the flexible mining drilling vehicle according to claim 1, characterized in that: A partition plate (106) is fixed inside the box body (101); The driving pump (206) is located on the upper side of the partition (106), and the electrical component (105) is located on the lower side of the partition (106); The box body (101) is rotatably connected to a door panel (104).

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