CN110644926A

CN110644926A - Seabed combustible ice exploitation drill bit

Info

Publication number: CN110644926A
Application number: CN201910927339.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: 胡琴
Current assignee: LAIZHOU YUANYE SCIENCE AND TECHNOLOGY Co.,Ltd.
Priority date: 2018-08-07
Filing date: 2018-08-07
Publication date: 2020-01-03
Anticipated expiration: 2038-08-07
Also published as: CN109098664B; CN110700761A; CN110644926B; CN109098664A; CN110700761B

Abstract

The invention relates to a submarine combustible ice mining drill bit, which adopts the technical scheme that the submarine combustible ice mining drill bit comprises a limiting ring, a crushing mechanism, a cutting mechanism, an installation mechanism, an exhaust mechanism, a feeding mechanism, a discharging hopper, a crushing mechanism, a heating mechanism, a cleaning mechanism and a discharging mechanism, wherein the crushing mechanism is installed inside the cutting mechanism; cutting mechanism's internally mounted heating mechanism, combustible ice gets into heating mechanism, and heating mechanism generates heat and makes combustible ice melt for gas, makes impurity stay inside heating mechanism, and gaseous combustible ice gets into exhaust mechanism and discharges, makes things convenient for people to collect, and unloading mechanism and clearance mechanism are installed to heating mechanism's bottom, and impurity just slides in the inside of unloading mechanism and clearance mechanism, discharges from cutting mechanism lateral wall again.

Description

Seabed combustible ice exploitation drill bit

Technical Field

The invention relates to the technical field of combustible ice, in particular to a submarine combustible ice mining drill bit.

Background

The natural gas hydrate is also called as combustible ice, and is an ice-like crystalline substance formed by natural gas and water under high pressure and low temperature conditions and distributed in deep sea sediments or permafrost in land areas. It is also called "combustible ice" because it looks like ice and burns when exposed to fire.

In the process of exploiting the combustible ice, the drill rod is easy to be blocked by the combustible ice with larger volume, so that the efficiency of transporting the combustible ice is reduced; the property of the mined and discharged combustible ice is unstable, easy to decompose and difficult to maintain; the interior of some combustible ice contains a large amount of impurities, so that the quality of the combustible ice is reduced; in view of the above, the invention provides a submarine combustible ice mining drill bit, which has the following characteristics:

(1) according to the seabed combustible ice mining drill bit, the crushing mechanism is arranged in the cutting mechanism, the crushing mechanism is rotatably connected with the crushing mechanism, combustible ice mined and discharged by the cutting mechanism enters the crushing mechanism, and the crushing mechanism crush the combustible ice into fragments which enter the cutting mechanism to prevent the combustible ice from blocking the cutting mechanism.

(2) According to the seabed combustible ice mining drill bit, the heating mechanism is arranged in the cutting mechanism, combustible ice enters the heating mechanism, the heating mechanism heats to melt the combustible ice into gas, impurities are left in the heating mechanism, the impurities in the combustible ice are reduced, gaseous combustible ice enters the exhaust mechanism to be discharged, people can collect the gaseous combustible ice conveniently, and the quality of the gaseous combustible ice is high.

(3) According to the seabed combustible ice mining drill bit, the blanking mechanism and the cleaning mechanism are installed at the bottom end of the heating mechanism, impurities slide in the blanking mechanism and enter the cleaning mechanism, and then slide to the outside of the cutting mechanism from the inside of the cleaning mechanism, so that the cleaning is convenient.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a submarine combustible ice mining drill bit, wherein a crushing mechanism is arranged in a cutting mechanism, the crushing mechanism is rotatably connected in the crushing mechanism, combustible ice mined and discharged by the cutting mechanism enters the crushing mechanism, and the crushing mechanism crush the combustible ice into fragments which enter the cutting mechanism to prevent the combustible ice from blocking the cutting mechanism. Cutting mechanism's internally mounted heating mechanism, combustible ice gets into heating mechanism, and heating mechanism generates heat and makes combustible ice melt for gas, makes impurity stay heating mechanism's inside, reduces the inside impurity of combustible ice, and gaseous combustible ice gets into exhaust mechanism and discharges, makes things convenient for people to collect, and the gaseous combustible ice high quality. The bottom installation unloading mechanism and the clearance mechanism of heating mechanism, impurity slide in the inside of unloading mechanism and get into the inside of clearance mechanism, and the cutting mechanism outside is slided from the inside of clearance mechanism to impurity again, convenient clearance.

The technical scheme adopted by the invention for solving the technical problems is as follows: a submarine combustible ice mining drill bit comprises a limiting ring, a crushing mechanism, a cutting mechanism, an installation mechanism, an exhaust mechanism, a feeding mechanism, a discharging hopper, a crushing mechanism, a heating mechanism, a cleaning mechanism and a discharging mechanism; the limiting ring is sleeved on the side wall of the cutting mechanism for exploiting the combustible ice, the crushing mechanism for reducing the volume of the combustible ice is installed at the bottom end of the cutting mechanism, the feeding mechanism and the discharging hopper are respectively installed at the joint of the cutting mechanism and the crushing mechanism, and the crushing mechanism for crushing the combustible ice is rotatably connected inside the crushing mechanism; the heating mechanism for converting combustible ice from a solid state to a gaseous state is arranged in the cutting mechanism, the exhaust mechanism for collecting gaseous combustible ice is arranged at the top end of the heating mechanism, and the exhaust mechanism is fixed in the cutting mechanism; the bottom of the heating mechanism is provided with the blanking mechanism used for collecting impurities, the blanking mechanism and the bottom of the heating mechanism are provided with the cleaning mechanism used for cleaning the impurities, the cleaning mechanism is communicated with the side wall of the cutting mechanism, and the top end of the cutting mechanism is provided with the mounting mechanism connected with the drilling machine.

Specifically, cutting mechanism includes first blade, connecting rod and bracing piece, the bottom suit of bracing piece the spacing ring, the bracing piece intercommunication the connecting rod, and the lateral wall installation equidistance of hollow connecting rod distributes first blade, for the convenience first blade rotation cutting rock stratum and combustible ice make combustible ice get into the inside of connecting rod.

Specifically, crushing mechanism includes fixed case, a plurality of first cylinder, a plurality of motor and a plurality of second cylinder, the bracing piece with install between the connecting rod fixed case, the inside of fixed case is rotated and is connected a plurality ofly first cylinder with the second cylinder, the internally mounted of fixed case the motor, the motor rotates and connects first cylinder with the second cylinder, and surface unevenness first cylinder with second cylinder rotation opposite direction, for the messenger first cylinder with the second cylinder rotates and shreds combustible ice, makes combustible ice get into the inside of fixed case.

Specifically, feed mechanism includes feed hopper and baffle, fixed case with the junction installation of connecting rod feed hopper, feed hopper's top symmetry installation the baffle, the baffle install in the inside of fixed case, just rotate between the baffle and connect first cylinder with the second cylinder, for convenient combustible ice is in feed hopper with the lateral wall of baffle slides, makes combustible ice get into the inside of fixed case.

Specifically, the crushing mechanism comprises a fixed column, sawteeth, a rotating shaft and a second blade, the fixed column is respectively and rotatably connected between the inner side wall of the fixed box and the first roller and between the inner side wall of the fixed box and the second roller, and the sawteeth are arranged on the side wall of the fixed column; the rotating shaft is installed between the first roller and the second roller and is rotatably connected with the partition plate, the spiral second blade is installed on the side wall of the rotating shaft, and therefore the sawteeth and the second blade can crush crushed combustible ice again in order to facilitate the rotation of the fixing column and the rotating shaft.

Specifically, the heating mechanism comprises a first fixing plate, a heating coil, a second fixing plate and a third fixing plate, the discharging funnel is installed at the joint of the supporting rod and the fixing box, the arc-shaped first fixing plate is installed at the top end of the discharging funnel, the first fixing plate is installed inside one end of the supporting rod, the third fixing plate is symmetrically installed inside the other end of the supporting rod, and the second fixing plate is installed between the two arc-shaped third fixing plates; spiral is installed to the inside equidistance of first fixed plate heating coil, just the top of first fixed plate with the lateral wall of second fixed plate department placed in the middle flushes, in order to make combustible ice get into the inside of first fixed plate, heating coil generates heat and makes solid combustible ice turn into gas, makes gaseous combustible ice rise, and the inside impurity of combustible ice slides in the inside of first fixed plate.

Specifically, exhaust mechanism includes funnel and trachea, the top of third fixed plate sets up the funnel, just the funnel inversion in the inside of bracing piece, just the department installation placed in the middle of the funnel the trachea is convenient gaseous combustible ice is collected to the funnel, makes gaseous combustible ice get into tracheal inside.

Specifically, unloading mechanism includes lug and barrel, first fixed plate with install the lateral wall arc between the inside wall of bracing piece the barrel, it is hollow the spiral is installed to the inside slope of barrel the lug, for convenient impurity is in the inside of lug slides, makes impurity get into the bottom of barrel.

Specifically, the cleaning mechanism comprises a discharge chute, a storage box, a baffle, a spring and a sealing plate, wherein the storage box is mounted at the bottom end of the first fixing plate, the sealing plate is rotatably connected with the joint of the storage box and the first fixing plate, and the sealing plate is clamped with the first fixing plate; the baffle is arranged in the storage box, and the spring is arranged between the baffle and the sealing plate; the bin with the junction of bracing piece is equipped with the blown down tank, for the convenience the inside impurity of first fixed plate gets into the inside of bin makes impurity follow bin one end discharge in the blown down tank.

Specifically, installation mechanism includes adapter sleeve and screw rod, the top surface installation of bracing piece the adapter sleeve, the top installation of adapter sleeve the screw rod, just the trachea runs through the bracing piece with the screw rod, for convenient with the screw rod is connected with the rig.

The invention has the beneficial effects that:

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a preferred embodiment of subsea combustible ice auger mining equipment provided by the present invention;

FIG. 2 is a cross-sectional view of the internal structure of the crushing mechanism shown in FIG. 1;

FIG. 3 is a cross-sectional view of the crushing mechanism shown in FIG. 1;

FIG. 4 is a schematic view of the internal structure of the support rod shown in FIG. 1;

fig. 5 is a schematic view of the internal structure of the blanking mechanism shown in fig. 4.

In the figure: 1. the device comprises a limiting ring, 2, a crushing mechanism, 21, a fixed box, 22, a first roller, 23, a motor, 24, a second roller, 3, a cutting mechanism, 31, a first blade, 32, a connecting rod, 33, a supporting rod, 4, an installation mechanism, 41, a connecting sleeve, 42, a screw rod, 5, an exhaust mechanism, 51, a funnel, 52, an air pipe, 6, a feeding mechanism, 61, a feeding funnel, 62, a partition plate, 7, a discharging funnel, 8, a crushing mechanism, 81, a fixed column, 82, a sawtooth, 83, a rotating shaft, 84, a second blade, 9, a heating mechanism, 91, a first fixed plate, 92, a heating coil, 93, a second fixed plate, 94, a third fixed plate, 10, a cleaning mechanism, 101, a discharging groove, 102, a storage box, 103, a baffle, 104, a spring, 105, a sealing plate, 11, a discharging mechanism, 111, a lug, 112 and a barrel.

Detailed Description

In order to make the technical method, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1, the submarine combustible ice mining drill bit comprises a limiting ring 1, a crushing mechanism 2, a cutting mechanism 3, an installation mechanism 4, an exhaust mechanism 5, a feeding mechanism 6, a discharging hopper 7, a crushing mechanism 8, a heating mechanism 9, a cleaning mechanism 10 and a blanking mechanism 11; the limiting ring 1 is sleeved on the side wall of the cutting mechanism 3 for exploiting the combustible ice, the crushing mechanism 2 for reducing the volume of the combustible ice is installed at the bottom end of the cutting mechanism 3, the feeding mechanism 6 and the discharging hopper 7 are respectively installed at the joint of the cutting mechanism 3 and the crushing mechanism 2, and the crushing mechanism 8 for crushing the combustible ice is rotatably connected inside the crushing mechanism 2; the heating mechanism 9 for converting combustible ice from a solid state to a gaseous state is arranged in the cutting mechanism 3, the exhaust mechanism 5 for collecting gaseous combustible ice is arranged at the top end of the heating mechanism 9, and the exhaust mechanism 5 is fixed in the cutting mechanism 3; the bottom end of the heating mechanism 9 is provided with the blanking mechanism 11 used for collecting impurities, the blanking mechanism 11 and the bottom end of the heating mechanism 9 are provided with the cleaning mechanism 10 used for cleaning impurities, the cleaning mechanism 10 is communicated with the side wall of the cutting mechanism 3, and the top end of the cutting mechanism 3 is provided with the mounting mechanism 4 connected with a drilling machine.

Specifically, as shown in fig. 1, the cutting mechanism 3 of the submarine combustible ice mining drill bit of the present invention includes a first blade 31, a connecting rod 32 and a supporting rod 33, the bottom end of the supporting rod 33 is sleeved with the limiting ring 1, the supporting rod 33 is communicated with the connecting rod 32, and the first blades 31 are equidistantly arranged on the side wall of the hollow connecting rod 32, so as to facilitate the first blades 31 to rotate to cut rock strata and combustible ice, so that the combustible ice enters the connecting rod 32.

Specifically, as shown in fig. 1, 2 and 3, the crushing mechanism 2 according to the present invention includes a fixed box 21, a plurality of first rollers 22, a plurality of motors 23 and a plurality of second rollers 24, the fixed box 21 is installed between the support rod 33 and the connecting rod 32, the plurality of first rollers 22 and the plurality of second rollers 24 are rotatably connected to the inside of the fixed box 21, the motors 23 are installed inside the fixed box 21, the motors 23 are rotatably connected to the first rollers 22 and the second rollers 24, and the first rollers 22 and the second rollers 24 having uneven surfaces are rotated in opposite directions, so that the first rollers 22 and the second rollers 24 rotate to crush the combustible ice, so that the combustible ice enters the inside of the fixed box 21.

Specifically, as shown in fig. 2, the feeding mechanism 6 of the subsea combustible ice mining drill bit of the present invention includes a feeding funnel 61 and a partition plate 62, the feeding funnel 61 is installed at the connection position of the fixed box 21 and the connecting rod 32, the partition plate 62 is symmetrically installed at the top end of the feeding funnel 61, the partition plate 62 is installed inside the fixed box 21, and the first roller 22 and the second roller 24 are rotatably connected between the partition plates 62, so that combustible ice can enter the fixed box 21 in order to facilitate the combustible ice to slide on the side walls of the feeding funnel 61 and the partition plate 62.

Specifically, as shown in fig. 3, the crushing mechanism 8 of the subsea combustible ice mining drill bit of the invention comprises a fixing column 81, saw teeth 82, a rotating shaft 83 and a second blade 84, the fixing column 81 is rotatably connected between the inner side wall of the fixing box 21 and the first roller 22 and the second roller 24 respectively, and the saw teeth 82 are installed on the side wall of the fixing column 81; the rotating shaft 83 is installed between the first drum 22 and the second drum 24, the rotating shaft 83 is rotatably connected to the partition plate 62, and the second blade 84 is installed at a side wall of the rotating shaft 83 in a spiral shape, so that the teeth 83 and the second blade 84 crush the crushed combustible ice again in order to facilitate the rotation of the fixing column 81 and the rotating shaft 83.

Specifically, as shown in fig. 4, the heating mechanism 9 of the submarine combustible ice exploitation drill bit of the present invention includes a first fixing plate 91, a heating coil 92, a second fixing plate 93 and a third fixing plate 94, the discharging funnel 7 is installed at the joint of the supporting rod 33 and the fixing box 21, the first fixing plate 91 with an arc shape is installed at the top end of the discharging funnel 7, the first fixing plate 91 is installed inside one end of the supporting rod 33, the third fixing plate 94 is symmetrically installed inside the other end of the supporting rod 33, and the second fixing plate 93 is installed between the two third fixing plates 94 with an arc shape; spiral heating coil 92 is installed to the inside equidistance of first fixed plate 91, just the top of first fixed plate 91 with the lateral wall of second fixed plate 93 is located between two parties and is leveled, in order to make combustible ice get into the inside of first fixed plate 91, heating coil 92 generates heat and makes solid combustible ice turn into gas, makes gaseous combustible ice rise, and the inside impurity of combustible ice slides into the inside of first fixed plate 91.

Specifically, as shown in fig. 1 and 4, the gas exhaust mechanism 5 of the drill bit for exploiting combustible ice on the seabed according to the present invention includes a funnel 51 and a gas pipe 52, the funnel 51 is disposed at the top end of the third fixing plate 94, the funnel 51 is inversely installed inside the supporting rod 33, and the gas pipe 52 is installed at the center of the funnel 51, so as to facilitate the funnel 51 to collect gaseous combustible ice, and make gaseous combustible ice enter the gas pipe 52.

Specifically, as shown in fig. 4 and 5, the blanking mechanism 11 of the drill bit for exploiting the undersea combustible ice according to the present invention includes a protrusion 111 and a cylinder 112, the cylinder 112 with an arc sidewall is installed between the first fixing plate 91 and the inner sidewall of the support rod 33, and the spiral protrusion 111 is installed in the hollow cylinder 112 in an inclined manner, so that impurities can enter the bottom end of the cylinder 112 in order to facilitate the impurities to slide in the protrusion 111.

Specifically, as shown in fig. 4, the cleaning mechanism 10 of the subsea combustible ice mining drill bit of the present invention includes a discharge chute 101, a storage tank 102, a baffle 103, a spring 104 and a sealing plate 105, wherein the storage tank 102 is mounted at the bottom end of the first fixing plate 91, the sealing plate 105 is rotatably connected to the connection portion of the storage tank 102 and the first fixing plate 91, and the sealing plate 105 is engaged with the first fixing plate 91; the baffle plate 103 is installed in the storage box 102, and the spring 104 is installed between the baffle plate 103 and the sealing plate 105; the discharge chute 101 is disposed at the connection position of the storage box 102 and the support rod 33, so that impurities in the first fixing plate 91 can enter the storage box 103 conveniently, and the impurities can be discharged from the discharge chute 101 at one end of the storage box 102.

Specifically, as shown in fig. 1, the mounting mechanism 4 of the submarine combustible ice mining drill bit of the invention includes a connecting sleeve 41 and a screw rod 42, the connecting sleeve 41 is mounted on the top surface of the supporting rod 33, the screw rod 42 is mounted on the top end of the connecting sleeve 41, and the air pipe 52 penetrates through the supporting rod 33 and the screw rod 42, so as to connect the screw rod 42 with a drilling machine conveniently.

The air pipe 52 is rotatably connected to a combustible ice storage tank for storing gaseous combustible ice, the screw rod 42 is in threaded connection with a drilling machine, the heating coil 92 is powered on, the heating coil 92 heats to raise the temperature inside the first fixing plate 91, and the motor 23 is turned on to rotate the motor 23.

(1) When the drilling machine is opened, the drilling machine drives the cutting mechanism 3 to rotate downwards, the first blades 31 distributed in an annular shape are enabled to be in contact with the rock stratum, the rock stratum is drilled through, the connecting rod 32 is enabled to be in contact with the combustible ice, and some broken rock stratum and combustible ice enter the inside of the connecting rod 32, along with the downward rotation of the supporting rod 33 and the action of rock stratum pressure, the rock and combustible ice enter the inside of the feeding funnel 61, and then enter the inside of the fixed box 21 and the partition plate 62 from the inside of the feeding funnel 61.

(2) The motor 23 drives the first roller 22 and the second roller 24 to rotate, the first roller 22 and the second roller 24 with unevenness contact with rocks and combustible ice, and the rotation directions of the first roller 22 and the second roller 24 are opposite, so that the rocks and the combustible ice are driven to enter between the first roller 22 and the second roller 24, the rocks and the combustible ice are squeezed by the first roller 22 and the second roller 24, the combustible ice is squeezed and broken, and a rotating shaft 83 is rotatably connected between the first roller 22 and the second roller 24, a spiral second blade 84 is installed on the side wall of the rotating shaft 83, the crushed rocks contact with the combustible ice to press the second blade 84, so that the second blade 84 is rotated, namely the second blade 84 contacts the rocks with the combustible ice, and the second blade 84 reversely presses the rocks and the combustible ice to increase the time between the first roller 22 and the second roller 24 for crushing the rocks and the combustible ice again; during the movement of the rocks and the combustible ice, some of the rocks and the combustible ice slide out of the first roller 22 and the second roller 24 and the fixed box 21, and the fixed columns 81 and the saw teeth 82 on the inner side wall of the fixed box 21 contact with the rocks and the combustible ice to crush the rocks and the combustible ice, so that the rocks and the combustible ice are prevented from blocking the support rod 33.

(3) The broken rocks and combustible ice slide upwards in the discharging hopper 7, so that the rocks and combustible ice slide upwards in the first fixing plate 91 and the supporting rod 33, the rocks and combustible ice slide upwards on the side wall of the third fixing plate 94 positioned at the bottom end of the second fixing plate 93, the rocks and combustible ice enter between the first fixing plate 91 and the second fixing plate 93 to continue moving upwards, the rocks and combustible ice turn over from the top end of the second fixing plate 93 to enter into the side wall of the other end of the second fixing plate 93 to slide downwards, the rocks and combustible ice are contacted with the heating coil 92, the heating coil 92 heats to change the combustible ice from a solid state to a gaseous state, the gaseous combustible ice moves upwards, the top end of the first fixing plate 91 is flush with the center of the side wall of the second fixing plate 93, and the gaseous combustible ice is prevented from leaking out from a gap between the first fixing plate 91 and the second fixing plate 93, making the gaseous combustible ice move upwards into the interior of the funnel 51, and then the interior of the funnel 51 enters the interior of the storage tank through the air pipe 52 for storage; impurities such as rocks fall into the interior of the cylinder 112.

(4) The support rod 33 rotates ceaselessly in the working process, so that impurities such as rocks rotate in the barrel 112, the downward spiral lug 111 is arranged in the barrel 112, the impurities such as the rocks slide downwards between the lugs 111, the impurities such as the rocks fall to the bottom end of the first fixing plate 91, and the rocks are prevented from shaking around the side wall of the first fixing plate 91.

(5) When impurities such as rocks are stored in a certain amount in the first fixing plate 91, the impurities such as the rocks extrude the sealing plate 105 under the action of gravity, so that the sealing plate 105 rotates, the spring 104 between the sealing plate 105 and the baffle plate 103 is compressed, the amount of the impurities such as the rocks is increased by gravity, the rotating angle of the sealing plate 105 is increased, the gap between the sealing plate 105 and the first fixing plate 91 is increased, the impurities such as the rocks fall into the storage tank 102, the spring 104 extends to push the sealing plate 105 to rotate, the sealing plate 105 is clamped with the first fixing plate 91, and the first fixing plate 91 is sealed; along with the rotation of bracing piece 33, impurity such as rock rotates in storage tank 102 inside, and the junction of storage tank 102 and bracing piece 33 is equipped with blown down tank 101, and at any time the rotation of bracing piece 33, impurity such as rock is thrown away from the inside of blown down tank 101, gets rid of impurity from the inside of bracing piece 33.

The cutting mechanism 3 is internally provided with the crushing mechanism 2, the crushing mechanism 2 is internally and rotatably connected with the crushing mechanism 8, the combustible ice mined and discharged by the cutting mechanism 3 enters the crushing mechanism 2, and the crushing mechanism 2 and the crushing mechanism 8 crush the combustible ice into fragments which enter the cutting mechanism 3 to prevent the combustible ice from blocking the cutting mechanism 3. The internally mounted heating mechanism 9 of cutting mechanism 3, combustible ice gets into heating mechanism 9, and heating mechanism 9 generates heat and makes combustible ice melt for gas, makes impurity stay in heating mechanism 9's inside, reduces the inside impurity of combustible ice, and gaseous combustible ice gets into exhaust mechanism 5 and discharges, makes things convenient for people to collect, and the gaseous combustible ice high quality. Unloading mechanism 11 and clearance mechanism 10 are installed to heating mechanism 9's bottom, and impurity slides in the inside of getting into clearance mechanism 10 in unloading mechanism 11, and the inside of clearance mechanism 10 is slided to cutting mechanism 3 outside to impurity again, convenient clearance.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a seabed combustible ice exploitation drill bit which characterized in that: the device comprises a limiting ring (1), a crushing mechanism (2), a cutting mechanism (3), an installation mechanism (4), an exhaust mechanism (5), a feeding mechanism (6), a discharging hopper (7), a crushing mechanism (8), a heating mechanism (9), a cleaning mechanism (10) and a discharging mechanism (11); the limiting ring (1) is sleeved on the side wall of the cutting mechanism (3) for exploiting combustible ice, the crushing mechanism (2) for reducing the volume of the combustible ice is installed at the bottom end of the cutting mechanism (3), the feeding mechanism (6) and the discharging hopper (7) are respectively installed at the joint of the cutting mechanism (3) and the crushing mechanism (2), and the crushing mechanism (8) for crushing the combustible ice is rotatably connected inside the crushing mechanism (2); the heating mechanism (9) for converting combustible ice from a solid state to a gaseous state is arranged in the cutting mechanism (3), the exhaust mechanism (5) for collecting gaseous combustible ice is arranged at the top end of the heating mechanism (9), and the exhaust mechanism (5) is fixed in the cutting mechanism (3); the blanking mechanism (11) used for collecting impurities is installed at the bottom end of the heating mechanism (9), the cleaning mechanism (10) used for cleaning impurities is installed at the bottom ends of the blanking mechanism (11) and the heating mechanism (9), the cleaning mechanism (10) is communicated with the side wall of the cutting mechanism (3), and the installation mechanism (4) connected with a drilling machine is installed at the top end of the cutting mechanism (3);

the cutting mechanism (3) comprises a first blade (31), a connecting rod (32) and a supporting rod (33), the limiting ring (1) is sleeved at the bottom end of the supporting rod (33), the supporting rod (33) is communicated with the connecting rod (32), and the first blades (31) are arranged on the side wall of the hollow connecting rod (32) at equal intervals;

the crushing mechanism (2) comprises a fixed box (21), a plurality of first rollers (22), a plurality of motors (23) and a plurality of second rollers (24), the fixed box (21) is installed between the supporting rod (33) and the connecting rod (32), the plurality of first rollers (22) and the plurality of second rollers (24) are rotatably connected inside the fixed box (21), the motors (23) are installed inside the fixed box (21), the motors (23) are rotatably connected with the first rollers (22) and the second rollers (24), and the first rollers (22) and the second rollers (24) with uneven surfaces are opposite in rotation direction;

the heating mechanism (9) comprises a first fixing plate (91), a heating coil (92), a second fixing plate (93) and a third fixing plate (94), the discharging funnel (7) is installed at the joint of the supporting rod (33) and the fixing box (21), the arc-shaped first fixing plate (91) is installed at the top end of the discharging funnel (7), the first fixing plate (91) is installed inside one end of the supporting rod (33), the third fixing plate (94) is symmetrically installed inside the other end of the supporting rod (33), and the second fixing plate (93) is installed between the two arc-shaped third fixing plates (94); the spiral heating coil (92) is installed in the first fixing plate (91) at an equal distance from the inside, and the top end of the first fixing plate (91) is flush with the center of the side wall of the second fixing plate (93).

2. The subsea combustible ice mining drill bit of claim 1, characterized in that: the feeding mechanism (6) comprises a feeding hopper (61) and a partition plate (62), the feeding hopper (61) is installed at the joint of the fixed box (21) and the connecting rod (32), the partition plate (62) is symmetrically installed at the top end of the feeding hopper (61), the partition plate (62) is installed inside the fixed box (21), and the first roller (22) and the second roller (24) are rotatably connected between the partition plate (62).

3. The subsea combustible ice mining drill bit of claim 2, characterized in that: the crushing mechanism (8) comprises a fixed column (81), saw teeth (82), a rotating shaft (83) and a second blade (84), the fixed column (81) is respectively and rotatably connected between the inner side wall of the fixed box (21) and the first roller (22) and the second roller (24), and the saw teeth (82) are installed on the side wall of the fixed column (81); the rotating shaft (83) is installed between the first roller (22) and the second roller (24), the rotating shaft (83) is rotatably connected with the partition plate (62), and the side wall of the rotating shaft (83) is provided with the spiral second blade (84).

4. The subsea combustible ice mining drill bit of claim 1, characterized in that: the exhaust mechanism (5) comprises a funnel (51) and an air pipe (52), the funnel (51) is arranged at the top end of the third fixing plate (94), the funnel (51) is inversely arranged in the supporting rod (33), and the air pipe (52) is arranged in the middle of the funnel (51).

5. The subsea combustible ice mining drill bit of claim 1, characterized in that: the blanking mechanism (11) comprises a convex block (111) and a cylinder body (112), the cylinder body (112) with an arc-shaped side wall is installed between the first fixing plate (91) and the inner side wall of the supporting rod (33), and the convex block (111) is installed in the hollow cylinder body (112) in a spiral shape in an inclined mode.

6. The subsea combustible ice mining drill bit of claim 1, characterized in that: the cleaning mechanism (10) comprises a discharge chute (101), a storage box (102), a baffle plate (103), a spring (104) and a sealing plate (105), the storage box (102) is mounted at the bottom end of the first fixing plate (91), the sealing plate (105) is rotatably connected to the joint of the storage box (102) and the first fixing plate (91), and the sealing plate (105) is clamped with the first fixing plate (91); the baffle plate (103) is arranged in the storage box (102), and the spring (104) is arranged between the baffle plate (103) and the sealing plate (105); the discharge chute (101) is arranged at the joint of the storage box (102) and the support rod (33).