A single cylinder hydraulic cone crusher

Abstract

The present invention relates to a single-cylinder hydraulic cone crusher, which includes a frame with a feed port and a crushing chamber, a drive shaft rotatably installed on the crushing chamber, and an inner cone eccentrically arranged on the drive shaft, the upper end of the drive shaft rotates into the feed port, and a spray pipe is installed through a one-way bearing, and the spray port of the spray pipe is arranged toward the inner cone surface; the peripheral wall of the feed port is arranged as a step surface, and an annular delivery pipe is installed on the axial end surface of the step surface through a buffer pad assembly, the inlet end of the delivery pipe is connected to a liquid inlet pipe passing through the frame, and the outlet end of the delivery pipe can be arranged rotatably relative to the body and connected to the inlet end of the spray pipe. The present invention assists the spray pipe in selectively following the action of the drive shaft by setting a one-way bearing, and assists with the buffer pad assembly to alleviate the shaking of the spray pipe and force the sinking inner cone to rise, thereby achieving the purpose of preventing dust, reducing the jam rate and alleviating the jam phenomenon.

Description

Technical Field

[0001] The invention relates to the technical field of sand and stone crushing equipment, in particular to a single-cylinder hydraulic cone crusher. Background Art

[0002] In the traditional production process of machine-made sand and gravel aggregates in my country, three methods are usually used, namely dry sand making, wet sand making and dry-wet combined sand making. Among them, the dry sand making method can solve the problem of high stone powder content in existing machine-made sand and gravel aggregates. During processing, the stone is initially crushed by the coarse crusher, and then the coarse material produced is conveyed to the fine crusher by the belt conveyor for further crushing. The finely crushed stone is screened into two types of stone by the vibrating screen. The stone that meets the feed particle size of the sand making machine is fed into the sand making machine, and the other part of the return material is fed into the sand making machine for further crushing. The production process needs to undergo at least 3 to 4 crushings.

[0003] Cone crusher is a kind of equipment suitable for fine and ultra-fine crushing of hard rock, ore, slag and other machine-made sand materials in the process of dry sand making. During the movement of the equipment squeezing the machine-made sand materials, the machine-made sand materials will be squeezed to the critical stress of the material under the huge force to achieve the purpose of crushing. Cone crushers are divided into four categories: spring cone crusher, mortar cone crusher, hydraulic cone crusher and compound cone crusher. Among them, hydraulic cone crushers are divided into ordinary PY cone crusher, Simmons cone crusher, compound cone crusher, standard hydraulic cone crusher, single-cylinder hydraulic cone crusher and multi-cylinder hydraulic cone crusher according to the model.

[0004] The Chinese patent with publication number CN114160241A discloses a single-cylinder hydraulic cone crusher, including a lower frame, an upper frame is detachably mounted on the upper end of the lower frame, the lower frame and the upper frame are the basic structure of the single-cylinder hydraulic cone crusher, a crushing cone assembly is installed between the upper frame and the lower frame, and the crushing cone assembly is connected to the drive motor through a drive shaft. When working, the above-mentioned single-cylinder hydraulic cone crusher drives the drive shaft of the crushing cone assembly to move through the drive motor, and the drive shaft revolves in an eccentric copper sleeve with the theoretical vertical line as the center. When the machine-made sand raw material is added to the crushing chamber, the inner cone of the crushing cone assembly slowly swings in the eccentric copper sleeve under the resistance of the material, and the running trajectory of the inner cone seems to swing back and forth in the crushing chamber, while slowly rotating, and the machine-made sand raw material is squeezed and crushed by the swinging inner cone.

[0005] The above-mentioned existing technical solutions have the following defects: whether it is a dry sand making production line or a single-cylinder hydraulic cone crusher, there is a problem of generating a large amount of dust in the production process. The dust will be raised in the process of the machine-made sand raw materials entering and exiting the single-cylinder hydraulic cone crusher, thereby polluting the workshop environment; in addition, after the single-cylinder hydraulic cone crusher has been used for a long time, due to the influence of various factors such as excessive feeding, poor lubrication, and bearing wear, the inner cone will sink, resulting in a reduction in the gap in the crushing chamber, and then a material jam will occur. The crushed stone is stuck inside the machine equipment, making it difficult to carry out subsequent operations, and it is also easy to cause damage to equipment components. Although the machine can be shut down for maintenance, it also greatly affects the efficiency of the operation and needs to be improved. Summary of the invention

[0006] The problem to be solved by the present invention is to provide a single-cylinder hydraulic cone crusher in view of the above-mentioned deficiencies in the prior art, which solves the problems of large dust generation and easy jamming of materials after long-term use of the prior crusher, thereby achieving the effect of suppressing dust generation and stone clogging.

[0007] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0008] A single-cylinder hydraulic cone crusher comprises a frame with a feed port and a crushing chamber, a drive shaft rotatably mounted on the crushing chamber, and an inner cone eccentrically arranged on the drive shaft, the upper end of the drive shaft is rotated into the feed port, and a spray pipe is installed through a one-way bearing, and the spray port of the spray pipe is arranged toward the surface of the inner cone; the peripheral wall of the feed port is arranged as a step surface, and an annular conveying pipe is installed on the axial end surface of the step surface through a buffer pad assembly, the inlet end of the conveying pipe is connected with a liquid inlet pipe penetrating the frame, and the outlet end of the conveying pipe can be rotatably arranged relative to the body and is connected with the inlet end of the spray pipe.

[0009] By adopting the above technical solution, water flows in from the liquid inlet pipe, passes through the conveying pipe, and then sprays out from the spray pipe toward the inner cone surface. When the driving shaft rotates in the direction that locks the one-way bearing, the spray pipe rotates synchronously with the driving shaft, so that the spray water is evenly sprayed in the crushing chamber. The sand and gravel raw materials are mixed with water through the spray area, which can play a similar role of lubrication when the inner cone surface is squeezed and crushed with sand and gravel, reduce the jam rate, and inhibit the powder from being lifted. At the same time, when the jam occurs, the driving shaft can be reversed. At this time, the spray pipe does not move with the driving shaft, and the water flow sprayed out directly acts on the inner cone surface and has a role in the jammed sand and gravel raw materials. The cushion assembly is indirectly connected to the drive shaft through the conveying pipe and the spray pipe, which can force the inner cone to rise when the inner cone forms a downward trend, so as to delay the reduction of the gap in the crushing chamber, avoid the need for shutdown and maintenance, and improve operating efficiency. In this process, a one-way bearing is set to assist the spray pipe to selectively follow the movement of the drive shaft, so that the spray pipe forms a water curtain when rotating and a jet of water when stationary, and the cushion assembly is used to alleviate the shaking of the spray pipe and force the sinking inner cone to rise, so as to avoid the reduction of the gap in the crushing chamber, thereby achieving the purpose of preventing dust, reducing the jam rate and alleviating the jam phenomenon.

[0010] Furthermore, the spray pipe includes a sleeve disposed on the outer ring of the one-way bearing, a plurality of connecting pipes passing through the sleeve, and a spray head disposed on the connecting pipe, wherein the connecting pipes are arranged around the circumference of the drive shaft and are interconnected. Preferably, four connecting pipes are arranged in a cross shape, and the sleeve is also correspondingly arranged in a cross shape.

[0011] Furthermore, the nozzles are independently selected from atomizing nozzles and jet nozzles. Atomizing nozzles and jet nozzles are used to form water mist and water flow respectively. The water mist can wrap around the surface of sand, stone and stone powder to play a role in lubrication and dust prevention, while the water flow can directly act on the crushed sand and stone raw materials to reduce the jam rate.

[0012] Furthermore, the delivery pipeline includes an outer sleeve ring provided on the cushion assembly and connected to the liquid inlet pipeline, an annular notch provided on the circumferential inner wall of the outer sleeve ring, an inner sleeve ring provided in the annular notch with a gap and connected to the spray pipeline, and a rotary seal provided on the gap between the inner sleeve ring and the annular notch. The rotary seal is an annular structure and is respectively arranged on the gaps on both sides of the inner sleeve ring and the annular notch to ensure sealing when the inner sleeve ring rotates relative to the outer sleeve ring.

[0013] Furthermore, the outer ring is provided with a plurality of rotary clamping cylinders, the moving path of the rotary clamping cylinder piston rod passes through the circumferential inner wall of the inner ring. The rotary clamping cylinder is used to compress the inner sleeve when the drive shaft is reversed to prevent the spray pipe from rotating accordingly.

[0014] Furthermore, the buffer pad assembly includes a pair of annular support plates respectively arranged on the step surface and the conveying pipe, a plurality of damping washers arranged between the pair of annular support plates, and a plurality of elastic washers respectively arranged between two adjacent damping washers, wherein a peripheral wall of one elastic washer is provided with an annular concave groove, and other elastic washers are embedded with steel strands. The above-mentioned buffer pad assembly has a high buffering bearing capacity. By optimizing the formula and structure of the damping washers and elastic washers, its density can be effectively improved, thereby improving its static load limit and static stiffness ratio, so that the buffer pad assembly can be lifted when the inner cone has a tendency to sink; in addition, the buffer pad group has a low loss factor and dynamic-static stiffness ratio, and has good resilience, and has an ideal isolation and reduction effect on the frequent high-frequency vibrations generated by processing, and can reduce the impact of high-frequency vibrations on various components in the equipment.

[0015] Furthermore, the steel strand is arranged in a spiral line shape.

[0016] Furthermore, the specific implementation method of the buffer pad assembly includes a process of forming a damping gasket by mixing, pouring and curing the preheated component A, component B and a first auxiliary agent; a process of forming an elastic gasket by mixing, pouring and curing the preheated component A, component B and a second auxiliary agent after installing the damping gasket / and the steel strand; and a process of bonding and fixing an annular support plate on both sides of the formed damping gasket and the elastic gasket; wherein the preheating temperature is 35~55°C; component A is composed of the following raw materials in parts by weight, 25~30 parts of polyvinyl carbazole, 25~30 parts of polydimethylsiloxane, 20~25 parts of ethylene propylene rubber, 10~15 parts of 1,2-butanediol, 0.1~1.0 parts of dibutyl tin dilaurate, and 0.2~0.4 parts of water; component B is composed of the following raw materials in parts by weight, 40~60 parts of hydrogenated diphenylmethane diisocyanate and 40~60 parts of polydimethylsiloxane.

[0017] Furthermore, in the damping washer, the weight ratio of component A, component B and the first auxiliary agent is 100: (30~40): (10~20); the first auxiliary agent is composed of raw materials comprising the following parts by weight: 2~4 parts of behenyl alcohol, 4~6 parts of silk protein fiber, and 4~6 parts of malachite.

[0018] Furthermore, in the elastic gasket, the weight ratio of component A, component B and the second auxiliary agent is 100: (50-60): (15-25); the second auxiliary agent is composed of the following raw materials in parts by weight: 2-4 parts of behenyl alcohol, 4-6 parts of ergothioneine, and 4-6 parts of maltodextrin.

[0019] To sum up, the beneficial technical effect of the present invention is: by setting a one-way bearing to assist the spray pipe to selectively follow the movement of the drive shaft, the spray pipe forms a water curtain when rotating and a jet of water when stationary, and is assisted by a buffer pad assembly to alleviate the shaking of the spray pipe and force the sinking inner cone to rise, so as to avoid the reduction of the crushing chamber gap, thereby achieving the purpose of preventing dust, reducing the jamming rate and alleviating the jamming phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a single-cylinder hydraulic cone crusher of the present invention.

[0021] Figure 2 It is a schematic diagram of the connection relationship between the buffer spray mechanism and the drive shaft of the present invention.

[0022] Figure 3 It is a schematic diagram of the connection relationship between the spray pipe and the drive shaft of the present invention.

[0023] Figure 4 It is a schematic diagram of the connection relationship between the buffer pad assembly and the conveying pipeline of the present invention.

[0024] In the figure, 1, frame; 11, feed inlet; 111, step surface; 12, crushing chamber; 2, crushing cone mechanism; 21, drive motor; 22, drive shaft; 23, inner cone; 3, buffer spray mechanism; 31, buffer pad assembly; 311, annular support plate; 312, damping washer; 313, elastic washer; 314, groove; 315, steel strand; 32, conveying pipeline; 321, outer sleeve; 322, annular notch; 323, inner sleeve; 324, rotary seal; 33, liquid inlet pipeline; 34, spray pipeline; 341, bushing; 342, connecting pipe; 343, nozzle; 35, one-way bearing; 36, rotary clamping cylinder. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Reference Figure 1 , a single-cylinder hydraulic cone crusher disclosed in the present invention, comprises a frame 1, a crushing cone mechanism 2 and a buffer spray mechanism 3. The frame 1 is provided with a feed port 11 and a crushing chamber 12 connected to the feed port 11, the crushing cone mechanism 2 performs a rotary swing motion in the crushing chamber 12 to complete the crushing operation of the sand and stone raw materials, and the buffer spray mechanism 3 achieves the purpose of preventing dust, reducing the jam rate and relieving the jamming phenomenon by spraying and elastic buffering.

[0027] The crushing cone mechanism 2 includes a driving motor 21 arranged on the frame 1, a driving shaft 22 connected to the output shaft of the driving motor 21 through a transmission pair (not shown in the figure) and rotatably installed in the crushing chamber 12, and an inner cone 23 eccentrically arranged on the driving shaft 22. Among them, this embodiment uses a belt drive combined with a gear drive to form a transmission pair, so that the force driven by the driving motor 21 to drive the transmission pair along the horizontal axis is converted into a force driving the driving main shaft to rotate along the vertical axis.

[0028] The peripheral wall of the feed port 11 is provided with a stepped surface 111, referring to Figure 2 The buffer spray mechanism 3 includes a buffer pad assembly 31 disposed on the axial end surface of the step surface 111, a delivery pipe 32 disposed on the buffer pad assembly 31, a liquid inlet pipe 33 connected to the inlet end of the delivery pipe 32 and passing through the frame 1, and a spray pipe 34 connected to the outlet end of the delivery pipe 32. The outlet end of the delivery pipe 32 can be rotatably arranged relative to the body, the upper end of the drive shaft 22 is rotated into the feed port 11, and the spray pipe 34 is installed through a one-way bearing 35.

[0029] The water flows in from the liquid inlet pipe 33, passes through the delivery pipe 32, and then sprays out from the spray pipe 34 toward the surface of the inner cone 23. When the driving shaft 22 rotates in the direction that locks the one-way bearing 35, the spray pipe 34 rotates synchronously with the driving shaft 22, so that the spray water is evenly sprayed in the crushing chamber 12. The sand and gravel raw materials are mixed with the water through the spray area, which can play a similar role of lubrication when the sand and gravel are squeezed and crushed on the surface of the inner cone 23, reduce the jam rate, and inhibit the powder from being lifted; at the same time, when the jamming phenomenon occurs, the driving shaft 22 can be reversed. At this time, the spray pipe 34 does not move with the driving shaft 22, and the water flow sprayed out directly acts on the surface of the inner cone 23, and boosts the stuck sand and gravel raw materials, thereby Alleviate the material jamming phenomenon; in addition, the buffer pad assembly 31 is indirectly connected to the drive shaft 22 through the conveying pipe 32 and the spray pipe 34, and can force the inner cone 23 to rise when the inner cone 23 forms a downward trend, so as to delay the driving force of the reduction of the gap in the crushing chamber 12, avoid the need for market shutdown and maintenance, and improve operating efficiency; in this process, a one-way bearing 35 is set to assist the spray pipe 34 to selectively follow the movement of the drive shaft 22, so that the spray pipe 34 forms a water curtain when rotating and a jet of water when stationary, and is assisted by the buffer pad assembly 31 to alleviate the shaking of the spray pipe 34 and force the sinking inner cone 23 to rise, so as to avoid the reduction of the gap in the crushing chamber 12, thereby achieving the purpose of preventing dust, reducing the jamming rate and alleviating the material jamming phenomenon.

[0030] Reference Figure 3Specifically, the spray pipe 34 includes a sleeve 341 arranged on the outer ring of the one-way bearing 35, a plurality of connecting pipes 342 passing through the sleeve 341, and a nozzle 343 arranged on the connecting pipe 342. These connecting pipes 342 are arranged around the circumference of the drive shaft 22 and are interconnected. The connecting pipes 342 are preferably arranged in two pairs and in a cross shape. Each pair of connecting pipes 342 is located on the same axis, and the nozzles 343 on the two pairs of connecting pipes 342 are respectively an atomizing nozzle and a jet nozzle, and the sleeve 341 is also correspondingly arranged in a cross shape. The atomizing nozzle and the jet nozzle are used to form water mist and water flow respectively. The water mist can be wrapped on the surface of sand, stone and stone powder to play a role in lubrication and dust prevention, and the water flow can directly act on the crushed sand and stone raw materials to reduce the jam rate.

[0031] Reference Figure 4 The delivery pipeline 32 includes an outer sleeve 321 disposed on the cushion assembly 31 and connected to the liquid inlet pipeline 33, an annular notch 322 provided on the circumferential inner wall of the outer sleeve 321, an inner sleeve 323 interspacedly embedded in the annular notch 322 and connected to the spray pipeline 34, and a rotary seal 324 disposed on the gap between the inner sleeve 323 and the annular notch 322. The rotary seal 324 is an annular structure and is respectively arranged on the gaps on both sides of the inner sleeve 323 and the annular notch 322 to ensure sealing when the inner sleeve 323 rotates relative to the outer sleeve 321. Three rotary clamping cylinders 36 are disposed on the outer sleeve 321, and the moving path of the piston rod of the rotary clamping cylinder 36 passes through the circumferential inner wall of the inner sleeve 323. The rotary clamping cylinder 36 is used to press the inner sleeve when the drive shaft 22 is reversed to prevent the spray pipeline 34 from rotating accordingly.

[0032] The buffer assembly 31 includes a pair of annular support plates 311 respectively arranged on the step surface 111 and the conveying pipe 32, five damping washers 312 arranged between the pair of annular support plates 311, and four elastic washers 313 respectively arranged between two adjacent damping washers 312. The thickness of the damping washers 312 and the elastic washers 313 is 15±5 mm, a circular concave groove 314 is formed on the peripheral wall of one of the elastic washers 313, and spiral-shaped steel strands 315 are embedded in the other elastic washers 313. The above-mentioned buffer pad assembly 31 has a high buffering load-bearing capacity. By optimizing the formulation and structure of the damping washer 312 and the elastic washer 313, its density can be effectively improved, thereby improving its static load limit and static stiffness ratio, so that the buffer pad assembly 31 can serve the purpose of lifting when the inner cone 23 has a tendency to sink; in addition, the buffer pad group has a low loss factor and dynamic-static stiffness ratio, and good resilience, and has an ideal isolation and reduction effect on the frequent high-frequency vibrations generated by processing, which can reduce the impact of high-frequency vibrations on various components in the equipment.

[0033] In order to improve the elastic buffering capacity, the specific implementation method of the buffer pad assembly 31 includes a process of forming a damping gasket 312 by mixing and pouring the component A, component B and a first auxiliary agent preheated to 42°C and curing; after installing the damping gasket 312 / and the steel strand 315, a process of forming an elastic gasket 313 by mixing and pouring the component A, component B and a second auxiliary agent preheated to 53°C and curing; and a process of bonding and fixing the annular support plate 311 on both sides of the formed damping gasket 312 and the elastic gasket 313.

[0034] Among them, component A is composed of raw materials including the following parts by weight: 27.8 parts of polyvinyl carbazole, 28.8 parts of polydimethylsiloxane, 22.5 parts of ethylene propylene rubber, 13.0 parts of 1,2-butanediol, 0.35 parts of dibutyltin dilaurate, and 0.26 parts of water; component B is composed of raw materials including the following parts by weight: 55 parts of hydrogenated diphenylmethane diisocyanate and 45 parts of polydimethylsiloxane. In the damping washer 312, the weight ratio of component A, component B and the first auxiliary agent is 100:36.5:12.5; the first auxiliary agent is composed of raw materials including the following parts by weight: 3 parts of behenyl alcohol, 5 parts of silk protein fiber, and 5 parts of malachite. In the elastic gasket 313, the weight ratio of component A, component B and the second auxiliary agent is 100:55.8:18.6; the second auxiliary agent is composed of the following raw materials in parts by weight: 3 parts of behenyl alcohol, 5 parts of ergothioneine and 5 parts of maltodextrin.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A single-cylinder hydraulic cone crusher, comprising a frame (1) with a feed port (11) and a crushing chamber (12), a drive shaft (22) rotatably mounted on the crushing chamber (12), and an inner cone (23) eccentrically arranged on the drive shaft (22), Features: The upper end of the driving shaft (22) is rotated into the feed port (11) and is provided with a spray pipe (34) via a one-way bearing (35), the spray port of the spray pipe (34) being arranged toward the surface of the inner cone (23); the peripheral wall of the feed port (11) is provided as a step surface (111), and an annular delivery pipe (32) is provided on the axial end surface of the step surface (111) via a buffer pad assembly (31), the inlet end of the delivery pipe (32) is connected to a liquid inlet pipe (33) passing through the frame (1), and the outlet end of the delivery pipe (32) is connected to the inlet end of the spray pipe (34); The delivery pipeline (32) comprises an outer sleeve (321) arranged on the buffer cushion assembly (31) and connected to the liquid inlet pipeline (33), an annular notch (322) provided on the circumferential inner wall of the outer sleeve (321), an inner sleeve (323) gap-embedded in the annular notch (322) and connected to the spray pipeline (34), and a rotary seal (324) arranged in the gap between the inner sleeve (323) and the annular notch (322); The buffer pad assembly (31) comprises a pair of annular support plates (311) respectively arranged on the step surface (111) and the conveying pipe (32), a plurality of damping washers (312) arranged between the pair of annular support plates (311), and a plurality of elastic washers (313) respectively arranged between two adjacent damping washers (312), wherein a peripheral wall of one of the elastic washers (313) is provided with an annular concave groove (314), and the other elastic washers (313) are embedded with steel strands (315); The specific implementation method of the buffer pad assembly (31) includes a process of mixing and pouring the preheated component A, component B and a first auxiliary agent and curing to form a damping washer (312); After the damping washer (312) and the steel strand (315) are installed, the preheated component A, component B and a second auxiliary agent are mixed, poured and cured to form an elastic washer (313); the annular support plate (311) is bonded and fixed on both sides of the formed damping washer (312) and the elastic washer (313); wherein the preheating temperature is 35-55° C.; the component A is composed of the following raw materials in parts by weight: 25-30 parts of polyvinyl carbazole, 25-30 parts of polydimethylsiloxane, 20-25 parts of ethylene propylene rubber, 10-15 parts of 1,2-butanediol, 0.1-1.0 parts of dibutyltin dilaurate, and 0.2-0.4 parts of water; and the component B is composed of the following raw materials in parts by weight: 40-60 parts of hydrogenated diphenylmethane diisocyanate and 40-60 parts of polydimethylsiloxane.

2. A single-cylinder hydraulic cone crusher according to claim 1, Features: The spray pipe (34) comprises a sleeve (341) arranged on the outer ring of the one-way bearing (35), a plurality of connecting pipes (342) passing through the sleeve (341), and a spray head (343) arranged on the connecting pipes (342); the connecting pipes (342) are arranged around the circumference of the drive shaft (22) and are interconnected.

3. A single-cylinder hydraulic cone crusher according to claim 2, Features: These nozzles (343) are independently selected from atomizing nozzles and jet nozzles.

4. A single-cylinder hydraulic cone crusher according to claim 1, Features: A plurality of rotary clamping cylinders (36) are arranged on the outer sleeve ring (321), and the moving path of the piston rod of the rotary clamping cylinder (36) passes through the circumferential inner wall of the inner sleeve ring (323).

5. A single-cylinder hydraulic cone crusher according to claim 1, Features: The steel strand (315) is configured as a spiral line.

6. A single-cylinder hydraulic cone crusher according to claim 1, Features: In the damping washer (312), the weight ratio of component A, component B and the first auxiliary agent is 100:(30-40):(10-20); the first auxiliary agent is composed of raw materials including the following parts by weight: 2-4 parts of behenyl alcohol, 4-6 parts of silk protein fiber, and 4-6 parts of malachite.

7. A single-cylinder hydraulic cone crusher according to claim 1, Features: In the elastic gasket (313), the weight ratio of component A, component B and the second auxiliary agent is 100: (50-60): (15-25); the second auxiliary agent is composed of the following raw materials in parts by weight: 2-4 parts of behenyl alcohol, 4-6 parts of ergothioneine, and 4-6 parts of maltodextrin.

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