CN112221665B - Civil engineering construction waste treatment device - Google Patents

Civil engineering construction waste treatment device Download PDF

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Publication number
CN112221665B
CN112221665B CN202011026340.3A CN202011026340A CN112221665B CN 112221665 B CN112221665 B CN 112221665B CN 202011026340 A CN202011026340 A CN 202011026340A CN 112221665 B CN112221665 B CN 112221665B
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CN
China
Prior art keywords
screen
shell
crushing
hollow
construction waste
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Active
Application number
CN202011026340.3A
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Chinese (zh)
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CN112221665A (en
Inventor
徐永芝
沈磊
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Xuchang University
Shandong Transport Vocational College
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Xuchang University
Shandong Transport Vocational College
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Priority to CN202011026340.3A priority Critical patent/CN112221665B/en
Publication of CN112221665A publication Critical patent/CN112221665A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C1/00—Crushing or disintegrating by reciprocating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
    • B02C19/186—Use of cold or heat for disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/40—Adding fluid, other than for crushing or disintegrating by fluid energy with more than one means for adding fluid to the material being crushed or disintegrated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage

Abstract

The invention provides a civil engineering construction waste treatment device, which comprises a first shell, wherein a first screen is arranged in the first shell, a feed inlet is formed in the top of the first shell, a second screen is arranged in the first shell below the feed inlet, the lower end of the first screen is connected with the second screen through a fixed baffle, first crushing teeth are arranged on the fixed baffle, and the aperture of the second screen is smaller than that of the first screen; the primary crushing device comprises a linear driving device and is arranged at the top of the first shell; the top of the hollow crushing plate is connected with a linear driving device; the hollow striking hammers are arranged on the side wall of the hollow crushing plate opposite to the first crushing teeth, and are communicated with the hollow crushing plate; the liquid spraying device is used for wetting the waste sorted by the second screen; the liquid nitrogen conveying device comprises a first liquid nitrogen storage tank; and the first liquid nitrogen conveying pipe is communicated with the hollow crushing plate. The invention can not only reduce energy consumption, but also prolong the service life of the pulverizer.

Description

Civil engineering construction waste treatment device
Technical Field
The invention belongs to the technical field of civil engineering equipment, and particularly relates to a civil engineering construction waste treatment device.
Background
With the acceleration of the urbanization process, some old buildings and public facilities have serious aging phenomena or reach the service life, the aging problem cannot be changed by regular maintenance, so the old buildings and the public facilities need to be dismantled, a large amount of building waste is generated after the old buildings and the public facilities are dismantled, large building waste is discarded at will, the environment is polluted, and the building waste needs to be treated.
In the prior art, two methods for treating construction wastes are provided: one method is to simply crush large building wastes and then bury the building wastes, and the method can destroy the environment and pollute the soil, and the other method is to crush, screen and sort the large building wastes and then convert the large building wastes into new resources which can be utilized, thereby realizing the recycling of the building wastes.
Because construction waste has certain hardness, though the purpose of crushing can be basically realized by directly feeding the construction waste into the crusher for crushing, long-term crushing can cause abrasion to the crushing knife, the service life of the crusher is shortened, meanwhile, the construction waste is crushed into a specified size and needs to be repeatedly crushed, and the energy consumption of the crusher is high, so that the civil engineering construction waste treatment device capable of reducing the energy consumption and prolonging the service life of the crusher has very important significance.
Disclosure of Invention
The present invention has been made in view of the above problems occurring in the prior art, and an object of the present invention is to provide a civil engineering and construction waste disposal apparatus capable of reducing energy consumption and improving the life of a crusher.
In order to achieve the purpose, the technical scheme provided by the application is that the civil engineering construction waste treatment device comprises
The waste separation device comprises a first shell, a second shell and a plurality of crushing teeth, wherein a fixing frame is arranged in the first shell along the horizontal direction, a first screen is arranged on the fixing frame, a feeding hole is formed in the top of the fixing frame, an inclined second screen for primarily separating waste fed into the first shell is arranged in the first shell below the feeding hole, the aperture of the second screen is smaller than that of the first screen, the lower ends of the first screen and the second screen are connected through a fixing baffle, and the fixing baffle is provided with a plurality of first crushing teeth;
a primary crushing device for crushing the waste sorted by the second screen, comprising
The linear driving device is arranged at the top of the first shell;
the top of the hollow crushing plate is connected with the linear driving device, and the bottom of the hollow crushing plate is in sliding connection with the fixed frame;
the hollow striking hammers are all arranged on the hollow crushing plate and are communicated with the hollow crushing plate one by one;
the liquid spraying device is arranged at the top of the first shell, is parallel to the linear driving device and is used for wetting the waste sorted by the second screen;
liquid nitrogen delivery device comprises
The first liquid nitrogen storage tank is arranged outside the first shell;
the first liquid nitrogen conveying pipe is communicated with the hollow crushing plate;
the secondary crushing device is arranged in the first shell below the first screen and is used for crushing the wastes crushed by the first screen;
the linear driving device is electrically connected with a power supply through a first control switch, and the liquid spraying device is electrically connected with the power supply through a second control switch
Preferably, fixed stop and first broken tooth are hollow structure, and fixed stop and first broken tooth intercommunication one by one, fixed stop passes through second liquid nitrogen conveyer pipe and second liquid nitrogen storage jar intercommunication.
Preferably, the secondary crushing device comprises
The second shell is fixed on the inner wall of the first shell through two connecting rods, the top of the second shell is provided with an upper opening for receiving the waste sorted by the first screen, the bottom of the second shell is provided with a third screen, and the peripheral wall of the second shell and the top of the third screen are both provided with second crushing teeth;
the two crushing rollers are arranged in the second shell and rotate reversely;
and the two driving motors are arranged outside the first shell, the output shafts of the driving motors are respectively connected with the crushing roller shafts, and the two driving motors are electrically connected with a power supply through a third control switch.
Preferably, the inner wall of the first casing above the second casing is symmetrically provided with inclined blocks along the axis of the first casing, so as to rapidly guide the waste sorted by the first screen into the opening of the second casing.
Preferably, the distance between the second shell and the crushing roller is 2-3 cm.
Preferably, a feeding hopper is arranged at the top of the first shell, the feeding hopper is communicated with the feeding hole, and a sealing cover is arranged at the top of the feeding hopper.
Preferably, a magnet is arranged on the inner wall of the feeding hopper.
Preferably, a baffle plate is obliquely arranged below the third screen, and the baffle plate is communicated with a discharge hole formed in the outer wall of the first shell.
Preferably, a vibration motor is arranged outside the first shell.
Compared with the prior art, the invention has the beneficial effects that:
the invention is novel, the construction waste sent into the first shell by the feeding hopper can be primarily separated by the second screen, the separated construction waste with small particle size falls down from the second screen, the construction waste with large size enters the space above the first screen, the construction waste entering the space is infiltrated by opening the liquid spraying device, the construction waste made of cement and other materials has capillary phenomenon, so that water sprayed on the construction waste (concrete) can be absorbed, then the valves of the first liquid nitrogen storage tank and the second liquid nitrogen storage tank are opened, liquid nitrogen is respectively introduced into the first crushing teeth and the plurality of hollow striking hammers, the temperature in the space above the first screen is rapidly reduced, the water-absorbed construction waste (concrete) can expand in volume in the shock cooling process, and further the construction waste (concrete) cracks are generated, when hitting the building waste (concrete) that the hammering has the crack, can be fast with the building waste (concrete) of crack broken, the number of times of hitting the hammer is reduced, the energy is saved, and when the small-size building waste after the breakage through first screen cloth sent into second grade breaker and further broken into the size that satisfies the requirement of retrieving, the large size building waste of direct crushing is compared, not only can reduce the wearing and tearing that cause two crushing rollers, and also can shorten kibbling time, simultaneously through setting up liquid spray set not only can soak the bold form building waste in the first casing, and the water after spraying also can get into in the second casing by first casing, can restrain the building waste raise dust in first casing and the second casing.
Drawings
FIG. 1 is a schematic sectional view showing a construction of a civil engineering construction waste disposal apparatus according to the present invention;
FIG. 2 is a schematic perspective view of a civil engineering construction waste disposal apparatus of the present invention;
FIG. 3 is a schematic view showing the positional relationship of an inclined block under the first screen, a secondary crushing apparatus and a baffle plate of the civil engineering construction waste disposal apparatus of the present invention;
FIG. 4 is a view showing a positional relationship between a spray unit and a linear driving unit of the civil engineering construction waste disposal apparatus of the present invention;
FIG. 5 is a schematic view showing the positional relationship among the fixing frame, the first screen, the fixed baffle and the hollow breaker plate of the shower apparatus of the civil engineering construction waste disposal apparatus of the present invention.
In the figure: 1. the device comprises a first shell, a second shell, a first screen, a second screen, a third screen, a fourth screen, a fifth screen, a sixth screen, a fifth screen, a sixth screen, a fifth screen, a sixth screen, a fifth, a sixth screen, a fifth, a sixth screen, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, a sixth, a fifth, baffle, 13, vibrating motor.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the technical scheme in the embodiment of the invention is clearly and completely described below with reference to the attached drawings in the embodiment of the invention.
In the description of the present invention, it should be understood that the terms used in the description of the present invention for the orientation, such as "height", "length", "width", "front surface", are based on the description when the body is vertically placed, i.e., perpendicular to the ground, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
As shown in fig. 1-5, the specific embodiment of the present invention is realized by adopting the following technical scheme, a civil engineering construction waste treatment device comprises a first shell 1, a first-stage crushing device 6 for crushing the waste sorted by a second screen 3, a liquid spraying device 7, a liquid nitrogen conveying device 8 and a second-stage crushing device 10, wherein a fixed frame is arranged in the first shell 1 along the horizontal direction, a support member is arranged at the bottom of the fixed frame, a first screen 2 is arranged on the fixed frame, a feed inlet is arranged at the top of the first shell 1, an inclined second screen 3 for primarily separating the waste fed into the first shell 1 is arranged in the first shell 1 below the feed inlet, the second screen 3 is arranged on a frame which is obliquely arranged in the first shell 1, and the aperture of the second screen 3 is smaller than that of the first screen 2, the lower ends of the first screen 2 and the second screen 3 are connected with the top of a fixed baffle 4, the bottom of the fixed baffle 4 is fixed on a fixed frame, and a plurality of first crushing teeth 5 are arranged on the fixed baffle 4;
the primary crushing device 6 comprises a linear driving device 6-1, a hollow crushing plate 6-2 and a plurality of hollow striking hammers 6-3, the linear driving device 6-1 is installed at the top of the first shell 1, and the linear driving device 6-1 is electrically connected with a power supply through a first control switch; the top of the hollow crushing plate 6-2 is connected with the linear driving device 6-1, and the bottom of the hollow crushing plate 6-2 is provided with a sliding block which is in sliding connection with a sliding groove arranged on the fixed frame; the hollow striking hammers 6-3 are all arranged on the hollow crushing plate 6-2 opposite to the first crushing tooth 5, and the hollow striking hammers 6-3 are communicated with the hollow crushing plate 6-2 one by one;
the liquid spraying device 7 is arranged at the top of the first shell 1 and is arranged in parallel with the linear driving device 6-1, the device is used for wetting the waste sorted by the second screen 3 and comprises a water storage device 7-1, a pressurizing pump 7-2, a hollow fixing plate 7-3 and a plurality of spray heads 7-4, wherein the water storage device 7-1 is arranged at the top of the first shell 1, the water storage device 7-1 is communicated with a water inlet of a pressure pump 7-2 through a pipeline, a water outlet of the pressure pump 7-2 is communicated with a hollow fixing plate 7-3 fixed on the inner top wall of the first shell 1 through a pipeline, a plurality of spray heads 7-4 are arranged at the bottom of the hollow fixing plate 7-3, the hollow fixing plates 7-3 of the spray heads 7-4 are communicated, and the pressure pump 7-2 is electrically connected with a power supply through a second control switch;
the liquid nitrogen conveying device 8 comprises a first liquid nitrogen storage tank 8-1 and a first liquid nitrogen conveying pipe 8-2, the first liquid nitrogen storage tank 8-1 and the first liquid nitrogen conveying pipe 8-2 are both made of steel, and the first liquid nitrogen storage tank 8-1 is arranged outside the first shell 1; one end of the first liquid nitrogen conveying pipe 8-2 is communicated with an outlet of a first liquid nitrogen storage tank 8-1, the other end of the first liquid nitrogen conveying pipe 8-2 penetrates through a through hole formed in the first shell 1, the penetrating end of the first liquid nitrogen conveying pipe is communicated with the hollow crushing plate 6-2, and an air outlet pipe with a valve is arranged on the first liquid nitrogen conveying pipe 8-2;
the secondary crushing device 10 is arranged in the first casing 1 below the first screen 2 and is used for crushing the waste crushed by the first screen 2.
In the embodiment, in order to solve the problems that when the construction waste is crushed into recycled particles with a specified size by the crusher in the prior art, the construction waste needs to be crushed for a long time, and the crushing not only causes abrasion to the crushing knife but also reduces the service life of the crusher, but the invention can solve the problems, when in use, the construction waste is firstly conveyed to the feeding port at the top of the first shell 1 by the lifting and conveying device, the construction waste firstly carries out primary screening on the construction waste fed into the first shell 1 from the feeding port by the second screen 3 arranged below the feeding port, and the construction waste smaller than the aperture of the second screen 3 passes through the second screen 3 and the first screen 2 and falls into the first shell 1 below the first screen 2 because the aperture of the second screen 3 is smaller than the aperture of the first screen 2, and the large-size construction waste larger than the aperture of the second screen 3 is sent into the first shell 1 above the first screen 2 for primary crushing, then a second control switch electrically connected with the liquid spraying device 7 is started, a pressure pump 7-2 of the liquid spraying device 7 starts to work, water in the water storage device 7-1 is pressurized and conveyed into the hollow fixed plate 7-3 and is distributed into each spray head 7-4, the water is sprayed out from the spray heads 7-4 and is sprayed on the massive construction waste, because the construction waste (concrete) contains a plurality of gaps, the water sprayed by the spray heads 7-4 can be absorbed through capillary phenomenon, then a pressure valve on the first liquid nitrogen storage tank 8-1 is opened, the liquid nitrogen enters the first conveying pipe 8-2 through a gas mode and is further conveyed to the hollow crushing plate 6-2, as the hollow striking hammers 6-3 are communicated with the hollow crushing plate 6-2 one by one, gasified liquid nitrogen also enters the hollow striking hammers 6-3, the gasification process of the liquid nitrogen is a heat absorption process, the temperature in the space above the first screen 2 can be reduced, water is cooled and then undergoes phase change, the liquid state is changed into a solid state, the volume is increased, the building waste absorbing the water can generate cracks in the self expansion process, at the moment, the first control switch is started, the linear driving device 6-1 is started, the hollow crushing plate 6-2 can be driven to move along the horizontal direction, a speed changer can be installed on the linear driving device 6-1 if necessary, the displacement speed of the linear driving device 6-1 is adjusted, the cracked building waste can be crushed more quickly, and the crushed small building waste falls into the lower part of the first screen 2 through the through holes of the first screen 2, and the construction waste larger than the aperture of the first screen mesh 2 needs to be crushed by the interaction of the hollow impact hammer 6-3 and the first crushing tooth 5 until all the construction waste falls below the first screen mesh 2, the construction waste falling below the first screen mesh 2 is crushed by the second-stage crushing device 10 until the construction waste is crushed into a recovery object with a specified size, the crushing time of the second-stage crushing device 10 can be reduced in the process, the crushing time of the rest large construction waste of the second-stage crushing device 10 is shortened, the abrasion of the second-stage crushing device 10 is reduced, and the energy consumption is reduced.
Further, in order to reduce the energy consumption, be used for quick carry out the breakage to the bold construction waste after sending into the screening in the first casing 1 of first screen cloth 2 top, so fixed stop 4 and first broken tooth 5 are hollow structure, and fixed stop 4 and first broken tooth 5 intercommunication one by one, fixed stop 4 is through second liquid nitrogen conveyer pipe and second liquid nitrogen storage jar intercommunication, be equipped with the outlet duct of taking the valve on the second liquid nitrogen conveyer pipe for quick to the first casing 1 refrigeration of first screen cloth 2 top, improved the efficiency that the bold construction waste after absorbing water produced the crack, help improving crushing efficiency, practice thrift the energy consumption, liquid spray set 7 also can reduce the dust in the first casing 1.
Further, a specific structure of the secondary crushing device 10 is given, and the secondary crushing device 10 comprises
The second shell 10-1 is fixed on the inner wall of the first shell 1 through two connecting rods, the top of the second shell is provided with an upper opening for receiving the waste sorted by the first screen 2, the bottom of the second shell is provided with a third screen 10-2, and the peripheral wall of the second shell 10-1 and the top of the third screen 10-2 are both provided with second crushing teeth 10-3;
two crushing rollers 10-4 are arranged in the second shell 10-1, and the two crushing rollers 10-4 rotate reversely;
two driving motors 10-5 are arranged outside the first shell 1, the output shaft of each driving motor 10-5 is respectively connected with each crushing roller 10-4 shaft, the two driving motors 10-5 are electrically connected with a power supply through a second control switch, when in use, the control switch of the liquid spraying device 7 is turned on, and the control switches of the two crushing rollers 10-4 are also turned on, the construction waste dropped from the first screen 2, enters the upper opening of the second housing 10-1, then the construction waste is extruded and crushed by the two crushing rollers 10-4 which rotate reversely, and the construction waste falling into the second shell 10-1 after being extruded and the second crushing teeth 10-3 arranged on the inner wall of the second shell 10-1 are extruded and crushed until the construction waste is output through the third screen 10-2 after being crushed.
Further, in order to guide the construction waste falling into the second shell 10-1 and improve the extrusion efficiency of the two crushing rollers 10-4 in the second shell 10-1, the inclined blocks 9 are symmetrically arranged on the inner wall of the first shell 1 above the second shell 10-1 along the axis of the first shell 1 and used for rapidly guiding the waste sorted by the first screen 2 into the opening of the second shell 10-1.
Further, in order to improve the crushing efficiency of the crushing roller 10-4, the distance between the second shell 10-1 and the crushing roller 10-4 is 2-3 cm.
Further, in order to avoid scattering of construction waste conveyed by the lifting and conveying device and improve feeding accuracy, the top of the first shell 1 is provided with a feeding hopper 11, the feeding hopper 11 is communicated with the feeding hole, and the top of the feeding hopper 11 is provided with a sealing cover for reducing raise dust.
Furthermore, magnets are arranged on the inner wall of the feeding hopper 11 and used for removing iron materials in the building waste, and damage to the hollow striking hammers 6-3, the first crushing teeth 5 and the second crushing teeth is avoided.
Further, a baffle 12 which is obliquely arranged is arranged below the third screen 10-2, the baffle 12 is communicated with a discharge hole arranged on the outer wall of the first shell 1, and the baffle 12 is used for rapidly outputting construction wastes falling from the third screen 10-2.
Further, a vibration motor 13 is provided outside the first casing 1, in order to improve the conveying efficiency of the first screen 2, the second screen 3 and the third screen 10-2 and to prevent the first screen 2, the second screen 3 and the third screen 10-2 from being clogged with construction waste.
The above disclosure is only for the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims (6)

1. A civil engineering construction waste treatment device is characterized by comprising
The waste treatment device comprises a first shell (1), a fixing frame is arranged inside the first shell along the horizontal direction, a first screen (2) is arranged on the fixing frame, a feed inlet is formed in the top of the first shell, a second screen (3) which is used for preliminarily separating waste fed into the first shell (1) is arranged in the first shell (1) below the feed inlet, the aperture of the second screen (3) is smaller than that of the first screen (2), the low ends of the first screen (2) and the second screen (3) are connected through a fixing baffle (4), a plurality of first crushing teeth (5) are arranged on the fixing baffle (4), the fixing baffle (4) and the first crushing teeth (5) are of a hollow structure, the fixing baffle (4) is communicated with the first crushing teeth (5) one by one, and the fixing baffle (4) is communicated with a second liquid nitrogen storage tank through a second liquid nitrogen conveying pipe;
a primary crushing device (6) for crushing the waste sorted by the second screen (3), comprising
The linear driving device (6-1) is arranged at the top of the first shell (1);
the top of the hollow crushing plate (6-2) is connected with the linear driving device (6-1), and the bottom of the hollow crushing plate is in sliding connection with the fixed frame;
the hollow striking hammers (6-3) are all arranged on the hollow crushing plate (6-2), and the hollow striking hammers (6-3) are communicated with the hollow crushing plate (6-2) one by one;
the liquid spraying device (7) is arranged at the top of the first shell (1), is parallel to the linear driving device (6-1), and is used for wetting the waste sorted by the second screen (3);
liquid nitrogen delivery device (8) comprising
The first liquid nitrogen storage tank (8-1) is arranged outside the first shell (1);
the first liquid nitrogen conveying pipe (8-2) is communicated with the hollow crushing plate (6-2);
the secondary crushing device (10) is arranged in the first shell (1) below the first screen (2) and is used for crushing the waste crushed by the first screen (2);
the secondary crushing device (10) comprises
The second shell (10-1) is fixed on the inner wall of the first shell (1) through two connecting rods, the top of the second shell is provided with an upper opening used for receiving waste sorted by the first screen (2), the bottom of the second shell is provided with a third screen (10-2), and the peripheral wall of the second shell (10-1) and the top of the third screen (10-2) are both provided with second crushing teeth (10-3);
two crushing rollers (10-4) are arranged in the second shell (10-1), and the two crushing rollers (10-4) rotate reversely;
the two driving motors (10-5) are arranged outside the first shell (1), the output shafts of the driving motors (10-5) are respectively connected with the shafts of the crushing rollers (10-4), and the two driving motors (10-5) are electrically connected with a power supply through a third control switch; the distance between the second shell (10-1) and the crushing roller (10-4) is 2-3 cm;
the linear driving device (6-1) is electrically connected with a power supply through a first control switch, and the liquid spraying device (7) is electrically connected with the power supply through a second control switch.
2. The civil engineering construction waste treatment device of claim 1, wherein the inner wall of the first casing (1) above the second casing (10-1) is symmetrically provided with inclined blocks (9) along the axis of the first casing (1) for rapidly guiding the waste sorted by the first screen (2) into the opening of the second casing (10-1).
3. The civil engineering construction waste treatment apparatus as claimed in claim 1, wherein the first housing (1) is provided at the top with a feed hopper (11), the feed hopper (11) is communicated with the feed inlet, and the top of the feed hopper (11) is provided with a sealing cover.
4. The civil engineering construction waste treatment apparatus as claimed in claim 3, wherein the feed hopper (11) is provided with a magnet on its inner wall.
5. The civil engineering construction waste treatment device of claim 1, wherein a baffle (12) is obliquely arranged below the third screen (10-2), and the baffle (12) is communicated with a discharge hole arranged on the outer wall of the first shell (1).
6. The civil engineering construction waste treatment apparatus as claimed in claim 1, wherein the first housing (1) is externally provided with a vibration motor (13).
CN202011026340.3A 2020-09-25 2020-09-25 Civil engineering construction waste treatment device Active CN112221665B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011026340.3A CN112221665B (en) 2020-09-25 2020-09-25 Civil engineering construction waste treatment device

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Application Number Priority Date Filing Date Title
CN202011026340.3A CN112221665B (en) 2020-09-25 2020-09-25 Civil engineering construction waste treatment device

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Publication Number Publication Date
CN112221665A CN112221665A (en) 2021-01-15
CN112221665B true CN112221665B (en) 2021-07-20

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