Novel reciprocating water bath type incinerator slag machine

Abstract

The application discloses a novel reciprocating water bath type incinerator slag discharging machine, which comprises a machine shell, a slag pushing assembly arranged in the machine shell and a following slag preventing assembly connected with the slag pushing assembly; the bottom of the machine shell is provided with supporting legs, and the top end is provided with a slag falling pipe; a manhole door is arranged on the side wall of the machine shell, and an internal built-in water tank is arranged in the machine shell; the slag pushing assembly comprises a hydraulic oil cylinder and a scraper plate which is clamped in the machine shell and connected with the hydraulic oil cylinder, and a scraper is arranged on the scraper plate; the following slag preventing assembly comprises a transmission shaft, crank arms which are sleeved at the two ends of the transmission shaft, a following shaft which is rotationally clamped between the two crank arms and a following baffle plate which is arranged on the side wall of the following shaft; the structure design of the application is reasonable; through the following slag preventing assembly, the following baffle plate can move synchronously with the scraper, so that the slag is effectively prevented from being brought back with the scraper, the generation of secondary pollution is avoided, and the maintenance difficulty of the equipment is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste incineration equipment, in particular to a novel reciprocating water bath type incinerator slag discharger. BACKGROUND

[0002] The incinerator slag discharger is an important supporting equipment of the waste incineration system, and its main function is to drop the ash produced in the burning section into the water seal slag discharger through the slag drop shaft, to rapidly cool and prevent dust by means of water seal, and then to push the cooled slag into the slag pit by the hydraulic driven scraper, and the manhole door is arranged at the top of the slag discharger for manual slag discharge and internal cleaning during shutdown maintenance or fault maintenance.

[0003] At present, the manhole door of the common slag discharger on the market is fixed by bolts, which is time-consuming and laborious to disassemble and assemble, and the sealing gasket is easily damaged by repeated disassembly of the bolts; in addition, the slag discharger body lacks a protective design for slag ash back carrying, and the water quality of the water seal system is easily polluted by the furnace flue gas and the slag, and the internal materials are seriously worn out for a long time. SUMMARY

[0004] In view of the above technical problems, the present application provides a novel reciprocating water bath type incinerator slag discharger.

[0005] The technical scheme of the present application is as follows: a novel reciprocating water bath type incinerator slag discharger, comprising a machine shell, a slag pushing assembly arranged in the machine shell, and a follow-up slag preventing assembly arranged in the machine shell and connected with the slag pushing assembly; the machine shell is hollow, and comprises a horizontal section and an inclined section connected at the end of the horizontal section, the inclined section is arranged upwardly inclined relative to the horizontal section; the lower bottom surfaces of the horizontal section and the inclined section are both provided with supporting legs; a slag drop pipe is arranged on one side of the upper end surface of the horizontal section close to the inclined section, and a manhole door is movably hinged at the lower end of the outer side wall of the horizontal section; an internal water tank is arranged at the end of the horizontal section far away from the inclined section and in communication with the inside of the horizontal section;

[0006] The slag pushing assembly comprises a hydraulic oil cylinder arranged on the upper end surface of the horizontal section through an oil cylinder support, and a scraper slidingly connected in the inside of the horizontal section and rotationally connected with the output end of the hydraulic oil cylinder; a scraper blade is connected at the end of the scraper far away from the hydraulic oil cylinder and abuts against the inner bottom of the horizontal section;

[0007] The follow-up slag preventing assembly comprises a transmission shaft arranged on the upper end surface of the horizontal section through a bearing seat and located at the rear end of the oil cylinder support, a crank arm sleeved on the outer side of the transmission shaft and located in the inner side of the bearing seat at the corresponding position, a follow-up shaft rotationally connected between the two crank arms and penetrating the scraper and hinged with the output end of the hydraulic oil cylinder, and a follow-up baffle arranged on the outer side wall of the follow-up shaft and located above the scraper.

[0008] Further, the horizontal section outer side wall is provided with a hinge seat and a plurality of mounting pins; the manhole door is movably hinged with the hinge seat through a movable insertion rod, and the manhole door is provided with mounting holes movably connected with the mounting pins; the horizontal section outer side wall is provided with a locking assembly movably connected with a side of the manhole door away from the movable insertion rod; the locking assembly comprises a first electric rod arranged on the horizontal section outer side wall, a pushing seat slidably connected with the horizontal section outer side wall and connected with the first electric rod, and a plurality of arc-shaped clamping seats equidistantly arranged on the side wall of the pushing seat and connected with the mounting pins one by one.

[0009] Description: When in use, the manhole door is buckled on the horizontal section outer side wall, at this time, the mounting pins are movably inserted into the corresponding mounting holes, and then the first electric rod is used to push the pushing seat to approach the mounting pins, so that the arc-shaped clamping seat is connected with the corresponding mounting pin, which is beneficial to improve the connection stability between the manhole door and the horizontal section.

[0010] Further, the inside of each arc-shaped clamping seat is slidably connected with a trigger seat abutting against the mounting pin at the corresponding position; one end of the trigger seat away from the mounting pin is provided with a reset spring abutting against the inner wall of the arc-shaped clamping seat, and the outer side wall lower end of the trigger seat is provided with a rack; the inside of the arc-shaped clamping seat is rotatably connected with a gear and a rotating disc through a rotating shaft, the gear is meshingly connected with the rack, and the outer side wall of the rotating disc is provided with an arc-shaped pressing block.

[0011] Description: When the arc-shaped clamping seat approaches the mounting pin, the trigger seat is extruded to move to the inside of the arc-shaped clamping seat, at this time, the meshing effect of the rack and the gear is used to make the rotating disc drive the arc-shaped pressing block to rotate, and the manhole door is pressed tightly, which further improves the convenience of opening and closing the manhole door and shortens the opening and closing time of the manhole door.

[0012] Further, both ends of the movable insertion rod are rotatably connected with a sliding seat slidably connected with the hinge seat at the corresponding position; the inside of the hinge seat is provided with a compression spring abutting against the sliding seat at the corresponding position; the inner wall of the manhole door is provided with a sealing ring abutting against the outer side wall of the horizontal section;

[0013] Description: The sliding seat drives the movable insertion rod to move to the side close to the horizontal section under the action of the compression spring, and the sealing effect of the manhole door and the horizontal section is improved under the cooperation of the sealing ring.

[0014] Further, the inclined section is movably hinged with a discharge guide groove at one end away from the horizontal section; the inclined section outer side wall lower end is movably hinged with a second electric rod movably hinged with the discharge guide groove;

[0015] Description: The discharge guide groove is rotated along the hinge point between the discharge guide groove and the inclined section by using the second electric rod, which can adjust the falling position of the ash slag, so as to avoid the accumulation of the ash slag to affect the normal operation of the subsequent transfer work.

[0016] Further, the horizontal section is internally provided with a spring sleeve connected with the scraper, the scraper comprises two sliding sleeves movably hinged at the top of the horizontal section and the upper end surface of the scraper respectively, and two telescopic rods slidingly connected with the two sliding sleeves respectively, and the two ends of the telescopic rods are provided with pushing springs abutting against the two sliding sleeves respectively;

[0017] Description: By arranging the spring sleeve, the scraper can always tightly adhere to the bottom of the horizontal section, thereby improving the slagging efficiency.

[0018] Further, the bottom of the horizontal section and the inclined section is provided with a wear-resistant lining plate;

[0019] Description: By arranging the wear-resistant lining plate, the friction loss of the equipment can be reduced, and the service life of the equipment can be prolonged.

[0020] Further, the outer side wall of the horizontal section is provided with an independent water tank in communication with the built-in water tank, and the independent water tank is internally provided with a float ball valve; the built-in water tank is provided with a filter plate on the side close to the inclined section;

[0021] Description: By arranging the independent water tank and the float ball valve, the water source of the built-in water tank can be supplemented, and the water level of the water seal can be controlled, thereby avoiding the turbidity of the water body caused by long-term water injection of the built-in water tank.

[0022] Further, the outer side wall of the horizontal section is provided with an overflow hole located at the connection between the slag falling pipe and the horizontal section;

[0023] Description: By arranging the overflow hole, the water level line can be always controlled at the connection between the slag falling pipe and the horizontal section, thereby effectively ensuring the negative pressure environment inside the furnace and improving the working stability of the incinerator.

[0024] The working principle of the present application is as follows:

[0025] In use, water is injected into the built-in water tank, and the water source in the built-in water tank can enter the machine shell, the garbage incinerator slag enters the machine shell through the slag falling pipe, and is rapidly cooled by the water seal and prevented from dusting, then the scraper and the scraper are moved on the bottom of the machine shell by the hydraulic oil cylinder, and the cooled slag is discharged from the end of the inclined section; at the same time, during the movement of the scraper, the cooperation of the crank arm and the follower shaft makes the follower baffle move with the scraper, effectively preventing the slag from being brought back with the scraper; when it is necessary to close the manhole door, the manhole door is buckled on the outer side wall of the horizontal section, the mounting pin is movably inserted into the corresponding mounting hole, then the pusher is pushed to the mounting pin by the first electric rod, so that the arc-shaped clamping seat is clamped and locked with the corresponding mounting pin, and when the arc-shaped clamping seat is close to the mounting pin, the trigger seat is pressed to move to the inside of the arc-shaped clamping seat, at this time, the meshing of the rack and the gear makes the rotating disc rotate and press the arc-shaped block, and the arc-shaped block is pressed.

[0026] Compared with the prior art, the present application has the following advantages:

[0027] Firstly, the structure of the present application is reasonable, and the following advantages are achieved: the anti-residue assembly is arranged, so that the following baffle moves synchronously with the scraper, thereby effectively avoiding the residue from being brought back by the scraper and avoiding the generation of secondary pollution, and reducing the difficulty of equipment maintenance;

[0028] Secondly, the locking assembly is arranged at the connection between the manhole door and the horizontal section, when the arc-shaped clamping seat approaches the mounting pin, the trigger seat is extruded and moves to the inside of the arc-shaped clamping seat, at this time, the meshing effect of the rack and the gear is utilized to make the rotating disc drive the arc-shaped pressing block to rotate and press the manhole door, thereby improving the sealing reliability of the manhole door and the horizontal section, and improving the convenience of opening and closing the manhole door;

[0029] Thirdly, the independent water tank and the floating ball valve are arranged, so that the water source of the built-in water tank is supplemented, the water level is controlled, and the turbidity of the water body caused by long-term water injection of the built-in water tank is avoided; the overflow hole is arranged, so that the water level line is always controlled at the connection between the slag falling pipe and the horizontal section, thereby effectively ensuring the negative pressure environment inside the furnace, and improving the working stability of the incinerator. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the front view of the present application;

[0031] Figure 2 is the longitudinal section view of the present application;

[0032] Figure 3 is the top view of the present application;

[0033] Figure 4 is the partial enlarged view of A in the present application Figure 2

[0034] Figure 5 is the connection diagram of the manhole door and the horizontal section of the present application;

[0035] ​Among them, 1-machine casing, 10-horizontal section, 11-inclined section, 12-support leg, 13-slag discharge pipe, 14-manhole door, 140-hinge seat, 141-installation pin, 142-movable insert rod, 143-installation hole, 144-slide seat, 145-compression spring, 146-sealing ring, 15-wear-resistant liner, 16-overflow hole, 2-slag pushing assembly, 20-hydraulic cylinder, 200-cylinder bracket, 21-scraper, 22-scraper blade, 23-spring sleeve, 230-sliding sleeve, 231-telescopic rod, 2 32-Push spring, 3-Follow-up anti-slag assembly, 30-Drive shaft, 300-Bearing seat, 31-Crank arm, 32-Follow-up shaft, 33-Follow-up baffle, 4-Built-in water tank, 40-Filter plate, 5-Locking assembly, 50-First electric rod, 51-Push seat, 52-Arc-shaped card seat, 53-Trigger seat, 530-Reset spring, 531-Rack, 54-Rotating shaft, 540-Gear, 541-Rotating disk, 542-Arc-shaped pressure block, 6-Discharge guide groove, 60-Second electric rod, 7-Independent water tank. Detailed Implementation

[0036] Example 1

[0037] like Figure 1 , 2 The novel reciprocating water bath incinerator ash discharge machine shown includes a casing 1, an ash pushing assembly 2 disposed inside the casing 1, and a follow-up anti-ash assembly 3 disposed inside the casing 1 and connected to the ash pushing assembly 2. The casing 1 is hollow inside and includes a horizontal section 10 and an inclined section 11 connected to the end of the horizontal section 10. The inclined section 11 is inclined upward relative to the horizontal section 10. Support legs 12 are provided on the bottom surface of both the horizontal section 10 and the inclined section 11. A ash discharge pipe 13 is provided on the upper end surface of the horizontal section 10 near the inclined section 11. A manhole door 14 is movably hinged to the lower end of the outer wall of the horizontal section 10. An internal water tank 4 that communicates with the interior of the horizontal section 10 is provided at the end of the horizontal section 10 away from the inclined section 11.

[0038] like Figure 1 , 2 As shown, the slag pushing assembly 2 includes a hydraulic cylinder 20 mounted on the upper surface of the horizontal section 10 via a cylinder bracket 200 and a scraper 21 slidably engaged inside the horizontal section 10 and rotatably engaged with the output end of the hydraulic cylinder 20; one end of the scraper 21 away from the hydraulic cylinder 20 is connected to a scraper 22 that abuts against the bottom of the horizontal section 10.

[0039] like Figure 2 , 3As shown, the follow-up anti-slag assembly 3 includes a drive shaft 30 disposed on the upper end face of the horizontal section 10 and located at the rear end of the cylinder bracket 200 via a bearing seat 300, crank arms 31 sleeved on both ends of the drive shaft 30 and located at corresponding positions inside the bearing seats 300, a follow-up shaft 32 rotatably engaged between the two crank arms 31 and passing through the hinge point between the scraper 21 and the output end of the hydraulic cylinder 20, and a follow-up baffle 33 disposed on the outer wall of the follow-up shaft 32 and located above the scraper 21.

[0040] In this implementation, the hydraulic cylinder 20 is a product of the prior art, such as the 800_Y-HG1E80 / 45-800LJ type hydraulic cylinder produced by Shanghai Lijian Hydraulic Technology Co., Ltd.

[0041] Example 2

[0042] The difference between this embodiment and Embodiment 1 is that:

[0043] like Figure 1 , 5 As shown, a hinge seat 140 and three mounting pins 141 are provided on the outer wall of the horizontal section 10; the manhole door 14 is movably hinged to the hinge seat 140 via a movable rod 142, and the manhole door 14 is provided with mounting holes 143 that are movably engaged with the mounting pins 141; a locking assembly 5 is provided on the outer wall of the horizontal section 10 that is movably engaged with the side of the manhole door 14 away from the movable rod 142; the locking assembly 5 includes a first electric rod 50 provided on the outer wall of the horizontal section 10, a push seat 51 that is slidably engaged with the outer wall of the horizontal section 10 and connected to the first electric rod 50 (commercially available product), and three arc-shaped locking seats 52 that are equidistantly distributed on the side wall of the push seat 51 and are engaged with each mounting pin 141 in a one-to-one manner; each arc-shaped locking seat 52 has a trigger seat 53 that slidably engages with the mounting pin 141 at the corresponding position; the end of the trigger seat 53 away from the mounting pin 141 is provided with A return spring 530 abuts against the inner wall of the arc-shaped card holder 52, and a rack 531 is provided at the lower end of the outer wall of the trigger seat 53. Inside the arc-shaped card holder 52, a gear 540 and a rotating disk 541 are rotatably engaged through a rotating shaft 54. The gear 540 meshes with the rack 531, and an arc-shaped pressure block 542 is provided on the outer wall of the rotating disk 541. When the manhole door 14 is fastened to the outer wall of the horizontal section 10, the mounting pin 141 is movably inserted into the corresponding mounting hole 143. Then, the first electric rod 50 pushes the push seat 51 close to the mounting pin 141, so that the arc-shaped card holder 52 is engaged and locked with the corresponding mounting pin 141. When the arc-shaped card holder 52 is close to the mounting pin 141, the trigger seat 53 is squeezed and moves inward to the arc-shaped card holder 52. At this time, the meshing action of the rack 531 and the gear 540 causes the rotating disk 541 to drive the arc-shaped pressure block 542 to rotate and press the manhole door 14.

[0044] Example 3

[0045] The difference between this embodiment and embodiment 2 lies in that:

[0046] As shown in Figure 5 , both ends of the movable insertion rod 142 are rotationally connected with the sliding seat 144 which is slidingly connected with the corresponding hinged seat 140; the hinged seat 140 is internally provided with the compression spring 145 which abuts against the sliding seat 144 at the corresponding position; the inner wall of the manhole door 14 is provided with the sealing ring 146 which abuts against the outer side wall of the horizontal section 10; the sliding seat 144 drives the movable insertion rod 142 to move to the side close to the horizontal section 10 under the action of the compression spring 145, and the sealing effect of the manhole door 14 and the horizontal section 10 is improved under the cooperation of the sealing ring 146.

[0047] Embodiment 4

[0048] The difference between this embodiment and embodiment 3 lies in that:

[0049] As shown in Figure 1 , the discharge guide groove 6 is movably connected to the end of the inclined section 11 away from the horizontal section 10; the second electric rod 60 (a commercially available product) is movably connected to the lower end of the outer side wall of the inclined section 11 and movably connected to the discharge guide groove 6; the discharge guide groove 6 is rotated along the hinged point with the inclined section 11 by using the second electric rod 60 to push the discharge guide groove 6, so that the falling position of the ash slag can be adjusted to avoid the accumulation of the ash slag affecting the normal operation of the subsequent transfer work.

[0050] Embodiment 4

[0051] The difference between this embodiment and embodiment 3 lies in that:

[0052] As shown in Figure 2 , 4 , the horizontal section 10 is internally provided with the spring sleeve 23 connected with the scraper 21; the scraper 21 includes two sliding sleeves 230 movably connected to the top of the horizontal section 10 and the upper end surface of the scraper 21 respectively, and two telescopic rods 231 slidingly connected with the two sliding sleeves 230 respectively; the two ends of the telescopic rod 231 are provided with the pushing spring 232 which abuts against the two sliding sleeves 230 respectively; by providing the spring sleeve 23, the scraper 21 can always be tightly attached to the inner bottom of the horizontal section 10, thereby facilitating the improvement of the ash discharge efficiency.

[0053] Embodiment 5

[0054] The difference between this embodiment and embodiment 4 lies in that:

[0055] As shown in Figure 2 , the inner bottom of the horizontal section 10 and the inclined section 11 are both provided with the wear-resistant lining plate 15; by providing the wear-resistant lining plate 15, the friction loss of the equipment is reduced and the service life of the equipment is prolonged; the wear-resistant lining plate 15 is made of high-chromium cast iron material.

[0056] Example 6

[0057] The difference between this embodiment and example 5 is that:

[0058] As shown in Figure 2 , 3 , the outer side wall of the horizontal section 10 is provided with a separate water tank 7 in communication with the built-in water tank 4, and the separate water tank 7 is internally provided with a float ball valve; the built-in water tank 4 is provided with a filter plate 40 near one side of the inclined section 11; by providing the separate water tank 7 and the float ball valve, the water source of the built-in water tank 4 can be supplemented while the water seal water level is controlled, avoiding the turbidity of the water body caused by long-term water injection of the built-in water tank 4.

[0059] Example 7

[0060] The difference between this embodiment and example 6 is that:

[0061] As shown in Figure 1 , the outer side wall of the horizontal section 10 is provided with an overflow hole 16 located at the connection between the slag falling pipe 13 and the horizontal section 10; by providing the overflow hole 16, the water level line can be always controlled at the connection between the slag falling pipe 13 and the horizontal section 10, which can effectively ensure the negative pressure environment inside the furnace and improve the working stability of the incinerator.

Claims

1. A novel water bath reciprocating incinerator slagging machine, characterized by, The utility model relates to a push slag assembly, a follow-up slag prevention assembly and a slag falling pipe are arranged in the machine shell, and the slag falling pipe is arranged on the upper end face of the horizontal section and is close to the inclined section, the manhole door is movably connected to the lower end of the horizontal section, the manhole door is movably connected to the hinged seat on the horizontal section, the locking assembly is movably connected to the side of the manhole door away from the movable inserting rod, and the locking assembly comprises a first electric rod, a pushing seat and a plurality of arc-shaped clamping seats. The utility model relates to a push slag assembly, a follow-up slag prevention assembly and a slag falling pipe are arranged in the machine shell, and the slag falling pipe is arranged on the upper end face of the horizontal section and is close to the inclined section, the manhole door is movably connected to the lower end of the horizontal section, the manhole door is movably connected to the hinged seat on the horizontal section, the locking assembly is movably connected to the side of the manhole door away from the movable inserting rod, and the locking assembly comprises a first electric rod, a pushing seat and a plurality of arc-shaped clamping seats. The utility model relates to a push slag assembly, a follow-up slag prevention assembly and a slag falling pipe are arranged in the machine shell, and the slag falling pipe is arranged on the upper end face of the horizontal section and is close to the inclined section, the manhole door is movably connected to the lower end of the horizontal section, the manhole door is movably connected to the hinged seat on the horizontal section, the locking assembly is movably connected to the side of the manhole door away from the movable inserting rod, and the locking assembly comprises a first electric rod, a pushing seat and a plurality of arc-shaped clamping seats. The utility model relates to a push slag assembly, a follow-up slag prevention assembly and a slag falling pipe are arranged in the machine shell, and the slag falling pipe is arranged on the upper end face of the horizontal section and is close to the inclined section, the manhole door is movably connected to the lower end of the horizontal section, the manhole door is movably connected to the hinged seat on the horizontal section, the locking assembly is movably connected to the side of the manhole door away from the movable inserting rod, and the locking assembly comprises a first electric rod, a pushing seat and a plurality of arc-shaped clamping seats. The utility model relates to a push slag assembly, a follow-up slag prevention assembly and a slag falling pipe are arranged in the machine shell, and the slag falling pipe is arranged on the upper end face of the horizontal section and is close to the inclined section, the manhole door is movably connected to the lower end of the horizontal section, the manhole door is movably connected to the hinged seat on the horizontal section, the locking assembly is movably connected to the side of the manhole door away from the movable inserting rod, and the locking assembly comprises a first electric rod, a pushing seat and a plurality of arc-shaped clamping seats. Each of the arc-shaped clamping bases (52) is slidably connected with a trigger base (53) abutting against the mounting pin (141) at the corresponding position; one end of the trigger base (53) away from the mounting pin (141) is provided with a reset spring (530) abutting against the inner wall of the arc-shaped clamping base (52), and the lower end of the outer side wall of the trigger base (53) is provided with a rack (531); the arc-shaped clamping base (52) is rotatably connected with a gear (540) and a rotating disc (541) through a rotating shaft (54), the gear (540) is in meshing connection with the rack (531), and the outer side wall of the rotating disc (541) is provided with an arc-shaped pressing block (542).

2. A novel water bath reciprocating incinerator slagging machine according to claim 1, characterized in that, Both ends of the movable inserting rod (142) are rotatably connected with a sliding seat (144) slidably connected with the corresponding hinged seat (140); the hinged seat (140) is internally provided with a compression spring (145) abutting against the sliding seat (144) at the corresponding position; the inner wall of the manhole door (14) is provided with a sealing ring (146) abutting against the outer side wall of the horizontal section (10).

3. A novel water bath reciprocating incinerator slagging machine according to claim 1, characterized in that, One end of the inclined section (11) away from the horizontal section (10) is movably hinged with a discharging guide groove (6); the lower end of the outer side wall of the inclined section (11) is movably hinged with a second electric rod (60) movably hinged with the discharging guide groove (6).

4. A novel water bath reciprocating incinerator slagging machine according to claim 1, characterized in that, The horizontal section (10) is internally provided with a spring sleeve (23) connected with a scraper (21), the scraper (21) comprises two sliding sleeves (230) movably hinged at the top of the horizontal section (10) and the upper end face of the scraper (21) respectively and two telescopic rods (231) slidably connected with the two sliding sleeves (230) respectively, and the two ends of the telescopic rod (231) are provided with a push spring (232) abutting against the two sliding sleeves (230) respectively.

5. A novel water bath reciprocating incinerator slagging machine according to claim 1, characterized in that, The inner bottom of the horizontal section (10) and the inclined section (11) is provided with a wear-resistant lining plate (15).

6. A new type of water bath reciprocating incinerator slagging machine according to claim 1, characterized in that, The outer side wall of the horizontal section (10) is provided with a separate water tank (7) in communication with the built-in water tank (4), and the separate water tank (7) is internally provided with a float valve; one side of the built-in water tank (4) close to the inclined section (11) is provided with a filter plate (40).

7. A novel water bath reciprocating incinerator slagging machine according to claim 1, characterized in that, The inner bottom of the casing (1) is provided with a wear-resistant lining plate (15).

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