TWI736198B - Screening process for reuse of incineration bottom slag - Google Patents

Abstract

An incineration bottom slag reutilization screening process, which includes the following steps: (a) providing an inner bottom slag screening process; (b) providing an intermediate bottom slag jaw crushing process; (b1) providing an intermediate bottom slag grinding Crushing process; (c) provide an outer bottom slag roll-back sieve transportation; (c1) provide an outer bottom slag re-vibration sieve transportation; thereby, through the above process and the use of the incineration bottom slag re-utilization screening device, the separation of the bottom slag Ferrous metals, non-ferrous metals, unburned materials and debris in the bottom slag, and crush the bottom slag larger than the set bottom slag particle size to meet the set bottom slag particle size standard for the bottom slag regenerated particle size, and use the back screen The process is in a small space.

Description

Screening process for reuse of incineration bottom slag

The present invention relates to a process, in particular to a screening process for the reuse of incineration bottom slag.

According to general incineration plants, the bottom slag incineration is wet. As a cylindrical screening machine for physical separation, it is easy to block the sieve of the cylindrical screening machine and lose the screening purpose. The bottom slag contains unscreened The removed combustibles, ferrous metals, non-ferrous metals, batteries and identifiable commercial products and other impurities, and the bottom slag is also larger than 20mm of the aforementioned impurities, so it does not meet the standards for incineration recycled pellets. The bottom slag cannot be reused and its practicability is greatly compromised. This is where the technical personnel and consumers in the field want to make a breakthrough.

In order to solve the above-mentioned shortcomings of the prior art, the main purpose of the present invention is to provide an incineration bottom slag reuse screening process, by separating the ferrous metal, non-ferrous metal, unburned matter and debris in the bottom slag, and will be more than The bottom slag with the set bottom slag particle size is crushed to meet the size standard of the bottom slag regenerated particle size at the set bottom slag particle size, in order to overcome the difficulties in the prior art.

The secondary objective of the present invention is to provide a re-use screening process of incineration bottom slag, which uses a re-screening process in a narrow space.

Another object of the present invention is to provide an incineration bottom slag recycling and screening device, which uses a rolling screen sorter and a finished product shaker to screen the bottom slag with a set bottom slag particle size, and crushes more than the bottom slag through a jaw crusher and a crusher Set the bottom slag particle size and send it to the rolling screen sorting machine and the finished product vibrating screen. In addition, the first, second, third, and fourth magnetic separators for separating metals and the manual picking platform through the manual picking platform Conveyors and eddy current equipment pick up non-ferrous metals, unburned materials and non-ferrous metals in order to overcome the difficulties in the prior art.

Another object of the present invention is to provide an incineration bottom slag re-use screening device, which repeatedly uses a rolling screen sorter and a finished product vibrating screen to screen bottom slag with a set bottom slag particle size, and the bottom slag larger than the set bottom slag particle size passes through The jaw crusher and crusher are crushed and screened back into the rolling screen sorter and the finished product shaker for screening.

Another object of the present invention is to provide an incineration bottom slag recycling and screening device, which effectively improves the bottom slag reuse and equipment reuse and simplification, and maximizes benefits.

The problem to be solved by the present invention is that since the bottom slag incineration in general incineration plants is wet, the sieve holes of the cylindrical screening equipment used as physical sorting are easily blocked and the screening purpose is lost. The bottom slag contains impurities. The combustibles, ferrous metals, non-ferrous metals, batteries and identifiable commercial products and other impurities that have been removed by screening. The bottom slag is also larger than 20mm of the aforementioned impurities, which completely does not meet the standards for incineration recycled pellets. As a result, the bottom slag cannot be reused, and its practicability is greatly reduced.

The problem to be solved by the present invention and the technical means to solve the problem. In order to achieve the above-mentioned purpose, the present invention provides a process for reusing the incineration bottom slag. The process is characterized in that the process includes the following steps: (a) providing an inner side Bottom slag screening process; (b) provide an intermediate bottom slag jaw crushing process; (b1) provide an intermediate bottom slag crushing process; (c) Provide an outer bottom slag roll-back sieve for transportation; (c1) Provide an outer bottom slag return-vibration sieve transportation; thereby, through the above process, ferrous metals, non-ferrous metals, and unburned substances in the bottom slag will be separated And debris, and crush the bottom slag larger than the set bottom slag particle size to meet the set bottom slag particle size standard for the bottom slag regenerated particle size.

Among them, the inner bottom slag screening process of the present invention is to sequentially clamp the bottom slag from the bottom slag storage pit of the incineration plant, and then put the clamped bottom slag into a vibrating feeder with a feeding conveyor at the lower end, and then The bottom slag is evenly flattened on the feeding conveyor through the vibrating blanking machine, and the large iron metal of the bottom slag is separated by the first magnetic separator that moves back and forth on the feeding conveyor, and the bottom slag is re-rolled The sieve sorting machine preliminarily sorts the bottom slag particle size of the separated large iron metal into the bottom slag that is larger than the set size of the bottom slag and less than and slightly larger than and equal to the set size of the bottom slag and falls into the transfer conveyor and Conveyor, the bottom slag that is smaller than or equal to the set bottom slag particle size, through the finished product conveyor connected to the finished product shaker, separates the iron metal in the second magnetic separator of the finished product conveyor to become sieving Finished pellets.

Among them, the intermediate bottom slag jaw crushing process of the present invention is to sequentially sieve the bottom slag that is larger than the set bottom slag particle size through the rolling screen classifier and drop onto the transfer conveyor connected to the rolling screen classifier, and pass The fourth magnetic separator installed in the transfer conveyor separates the bottom slag larger than the set bottom slag particle size, and the remaining bottom slag slightly larger than the set bottom slag particle size is sent to the transfer The manual pick-up platform conveyor connected with the conveyor, the manual pick-up platform formed by the manual pick-up platform conveyor separates the unburned materials and the large non-metal, iron and sundries in the manual picking method, and the remaining amount is slightly larger than the setting The bottom dross of the bottom slag particle size is then fed into the jaw crusher to be crushed to the bottom dross whose particle size is smaller than the set bottom dross particle size.

Wherein, the intermediate bottom slag crushing process of the present invention sequentially screens the bottom slag that is slightly larger than the set bottom slag particle size through the finished product shaker, and the bottom slag that falls into the conveyor is slightly larger than the set bottom slag particle size Of The bottom slag enters an eddy current device equipped with a third magnetic separator to separate ferrous metals and non-ferrous metals, and the remaining bottom slag, which is slightly larger than the set bottom slag particle size, enters a crusher for crushing.

Wherein, in the present invention, the outer bottom slag roll-back sieve transportation is to sequentially transport the bottom slag larger than the set bottom slag particle size through the manual picking platform conveyor and crush it to the size smaller than the set bottom slag particle size by the jaw crusher The bottom slag is transported back to the rolling screen classifier via the return screen conveyor, and the screening procedure is re-executed.

Wherein, in the present invention, the outer bottom slag re-vibration screen is transported through the bottom slag that falls into the conveyor and is slightly larger than the set bottom slag particle size and is crushed by the crusher to the bottom slag that is smaller than the set bottom slag particle size. The bottom slag will be transported back to the finished product shaker through the collection conveyor, and the screening procedure will be executed again.

The problem to be solved by the present invention and the technical means to solve the problem. In order to achieve the above-mentioned purpose, the present invention provides an incineration bottom slag recycling and screening device, which is characterized by comprising: a vibrating feeder with a One of the unloading materials enters the hopper, and the lower end of the vibrating unloading machine is provided with a vibrating lower hopper and connected to an infeed conveyor; at least one set of first magnetic separators are arranged at the upper end of the infeed conveyor; and a rolling screen sorting machine, It is installed at the other end of the feeding conveyor and is connected to at least one transfer conveyor and at least one conveyor respectively; a finished product shaker is installed on the conveyor, through which the conveyor conveys less than or equal to the set bottom slag particles The bottom slag of the diameter enters the finished product shaker for screening, and the finished product shaker is also connected to a finished product conveyor; a second magnetic separator is connected to the finished product conveyor provided on the finished product shaker and provides separation The iron metal in the bottom slag that is less than or equal to the set bottom slag particle size, and the sieved bottom slag becomes the sieved granular product; an eddy current device is installed at the other end of the conveyor; The crusher is arranged at the other end of the conveyor with the eddy current equipment, and the lower end of the crusher is provided with a collection conveyor, and the collection conveyor is connected to the finished product shaker; A fourth magnetic separator is installed on the transfer conveyor of the rolling screen sorting machine, and the fourth magnetic separator is provided to separate the iron and metal of the bottom slag; a manual pick-up platform conveyor is connected to the transfer conveyor At the other end of the conveyor, the manual pick-up platform conveyor forms a manual pick-up platform; a jaw crusher is attached to the other end of the manual pick-up platform conveyor, and the lower end of the jaw crusher is additionally connected to the rolling screen classification machine A back-screening conveyor; thereby, the bottom slag that is greater than or less than or equal to the set bottom slag particle size is screened by the rolling screen classifier and the finished product vibrating screen, and passes through the jaw crusher and the crusher The bottom slag that is larger than the set bottom slag particle size is crushed and returned to the rolling screen classification machine and the finished product vibrating screen machine.

Wherein, the conveyor of the present invention is provided with a third magnetic separator adjacent to the finished product shaker and the eddy current equipment.

Wherein, the transfer conveyor and the conveyor connected to the rolling screen sorter of the present invention respectively transport bottom slag larger than the set bottom slag particle size and transport bottom slag that is less than or equal to or slightly larger than the set bottom slag particle size.

Among them, the first magnetic separator of the present invention is two sets of moving back and forth magnetic separators.

Wherein, the rolling screen sorting machine of the present invention is composed of multiple rollers, each of which is provided with multiple discs, and the discs of each roller are staggered to form screen mesh holes.

In contrast to the effects of the prior art, the present invention separates ferrous metals, non-ferrous metals, unburned materials and impurities in the bottom slag through the above-mentioned process, and crushes the bottom slag larger than the set size of the bottom slag to The bottom slag regenerated particle size standard that meets the set bottom slag particle size and uses the back-screening process in a narrow space; the present invention uses a rolling screen sorter and a finished product shaker to screen the bottom slag with the set bottom slag particle size, and passes through the jaws. The crusher and crusher crush the bottom slag larger than the set bottom slag particle size and then send it to the rolling screen classifier and the finished product shaker. In addition, non-ferrous metals, unburned materials and non-ferrous metals are picked up through the first, second, third, and fourth magnetic separators for separating metals and manual pick-up platform conveyors and eddy current equipment through manual pick-up platforms; , Repeatedly use the rolling screen classifier and the finished product shaker to screen the bottom slag with the set bottom slag particle size. The bottom slag larger than the set bottom slag particle size is crushed by the jaw crusher and the crusher and returned to the rolling screen classification machine. And the finished product is screened by vibrating screen; effectively improve the reuse and simplification of the bottom slag, and maximize the efficiency of the equipment, which will greatly expand the utilization of the industry and be novel and progressive.

a: Provide an inner bottom slag screening process

b: Provide an intermediate bottom slag jaw crushing process

b1: Provide an intermediate bottom slag crushing process

c: Provide an outer bottom slag roll-back screen for transportation

c1: Provide an outer bottom slag re-vibration screen for transportation

1: Vibration cutting machine

10: bottom slag

100: Screened granular finished product

11: into the hopper

111: Vibration lower hopper

12: Feeding conveyor

2: The first magnetic separator

3: Rolling screen sorting machine

30: Roller

301: Disc

31: Conveyor

32: Transfer conveyor

4: Finished vibration sieve machine

41: Finished product conveyor

5: The second magnetic separator

51: The third magnetic separator

52: Eddy current equipment

53: Crusher

6: Collection conveyor

7: Jaw crusher

71: Back Screen Conveyor

8: The fourth magnetic separator

9: Manual pick-up platform conveyor

91: manual picking platform

The first figure: is the flow chart of the present invention.

Figure 2: is a three-dimensional exploded view of the present invention.

The third figure: is a three-dimensional assembly diagram of the present invention.

The fourth figure: is an embodiment diagram of the effect of the invention and the bottom slag.

Figure 5: is a block diagram of the present invention.

The sixth figure: is a diagram of an embodiment of the screening operation of the rolling screen sorter of the present invention.

The seventh figure: is an angle view of the magnetic field coverage of the eddy current device of the present invention.

The present invention is described in detail in the form of embodiment with the accompanying drawings as follows. The drawings used in the text are only for illustration and auxiliary description, and may not be the true proportions and accuracy of the present invention after implementation. Therefore, the scope of the patent for actual implementation of the present invention should not be limited by the ratio and configuration relationship of the attached drawings, which shall be explained first.

Please refer to the first, second, third, fourth, fifth, sixth and seventh diagrams, which are the flowcharts of the present invention, the three-dimensional exploded view of the present invention, and the three-dimensional combination of the present invention Figure and embodiment diagram of the effect of the present invention and bottom slag, block diagram of the present invention, embodiment diagram of the screening operation of the rolling screen sorting machine of the present invention, and an angle view of the magnetic field coverage of the eddy current equipment of the present invention.

In a preferred embodiment, the incineration bottom slag reuse screening process of the present invention is characterized in that the process includes the following steps: (a) providing an inner bottom slag screening process; (b) providing an intermediate bottom slag jaw Crushing process; (b1) provide an intermediate bottom slag crushing process; (c) provide an outer bottom slag roll-back sieve transportation; (c1) provide an outer bottom slag return-vibration sieve transportation; (as shown in Figures 1 and 5) Shown).

The aforementioned inner bottom slag screening process a is to sequentially clamp the bottom slag 10 from the bottom slag storage pit of the incineration plant, and then put the clamped bottom slag 10 into the vibrating feeder 1 with the feeding conveyor 12 at the lower end. , And then evenly flatten the bottom slag 10 on the feeding conveyor 12 through the vibrating feeder 1, and use the first magnetic separator 2 arranged on the feeding conveyor 12 to move back and forth to separate the bottom slag 10 Large iron metal, through the rolling screen classifier 3, the bottom slag 10 of the separated large iron metal is preliminarily sorted out of the size larger than the set size of the bottom slag and smaller than and slightly greater than or equal to the set size of the bottom slag. The bottom slag 10 falls into the transfer conveyor 32 and the conveyor 31 respectively. The bottom slag 10 that is less than or equal to the set bottom slag particle size will be placed on the finished product through the finished product conveyor 41 connected to the finished product shaker 4 The second magnetic separator 5 of the conveyor 41 separates the iron metal therein to become the sieved granular product 100 (as shown in the first and fifth drawings).

The aforementioned intermediate bottom slag jaw crushing process b is to sequentially sifter the bottom slag 10, which is larger than the set bottom slag particle size through the rolling screen classifier 3, onto the transfer conveyor 32 connected to the rolling screen classifier 3 , Through the fourth magnetic separator 8 arranged in the transfer conveyor 32 to separate the bottom slag 10 larger than the set bottom slag particle size, the remaining bottom slag 10 is slightly larger than the set bottom slag particle size, then Sent to the manual pick-up platform conveyor 9 connected to the transfer conveyor 32, and the manual pick-up platform 91 formed by the manual pick-up platform conveyor 9 Separate the unburned materials and the large non-metallic materials and debris by manual picking. The remaining bottom slag 10 that is slightly larger than the set bottom slag particle size will enter the jaw crusher 7 and be crushed to be smaller than the set bottom slag The bottom slag 10 of the particle size (as shown in the first and fifth diagrams).

The aforementioned intermediate bottom slag crushing process b1 is to sequentially screen out the bottom slag 10 that is slightly larger than the set bottom slag particle size through the finished product vibrating screen 4, and the bottom slag particle that falls into the conveyor 31 is slightly larger than the set bottom slag particle size The diameter of the bottom slag 10 enters the eddy current device 52 equipped with a third magnetic separator 51 to provide separation of ferrous and non-ferrous metals, and the remaining bottom slag 10, which is slightly larger than the set bottom slag particle size, enters the crusher 53 is broken (as shown in the first and fifth pictures).

The aforementioned outer bottom slag roll-over sieve transportation c is to sequentially transport the bottom slag 10 larger than the set bottom slag particle size through the manual pick-up platform conveyor 9 and crush it to be smaller than the set bottom slag particle size by the jaw crusher 7 The bottom slag 10 is transported back to the rolling screen classifier 3 via the screen return conveyor 71, and the screening procedure is re-executed (as shown in the first and fifth figures).

The aforementioned outer bottom slag return vibration sieve transportation c1 is sequentially passed through the bottom slag 10 that falls into the conveyor 31 and is slightly larger than the set bottom slag particle size and is crushed by the crusher 53 to a size smaller than the set bottom slag particle size The bottom slag 10 is transported back to the finished product shaker 4 via the collection conveyor 6, and the screening procedure is re-executed (as shown in the first and fifth figures).

Thereby, through the above process, ferrous metals, non-ferrous metals, unburned materials and impurities in the bottom slag 10 are separated, and the bottom slag 10 larger than the set size of the bottom slag is crushed to meet the set size of the bottom slag According to the size standard of the bottom slag regenerated particles, the present invention uses the back-screening process in a narrow space, which will greatly expand the industrial utilization and be novel and progressive.

In a preferred embodiment, the incineration bottom slag recycling and screening device of the present invention is characterized in that it includes a vibrating blanking machine 1, at least one set of first magnetic separator 2, a rolling screen sorting machine 3, and a finished product vibrating Screen 4, a second magnetic separator 5, an eddy current equipment 52, a crusher 53, a fourth magnetic separator 8, a manual pick-up platform conveyor 9, and a jaw crusher 7.

One of the aforementioned vibrating feeder 1 is provided with a feeding hopper 11 at its upper end. The lower end of the vibrating feeder 1 is provided with a vibrating lower hopper 111 and is connected to a feeding conveyor 12. The slag 10 is evenly flattened on the feeding conveyor 12 (as shown in the second to fifth figures).

The aforementioned at least one set of first magnetic separators 2 are arranged at the upper end of the feeding conveyor 12. In this embodiment, the first magnetic separators 2 are two sets of moving back and forth magnetic separators, but the present invention is not limited by this. , In order to provide the first separation of large iron metal in the original bottom slag 10 (as shown in the second to fifth figures).

One of the aforementioned rolling screen sorting machines 3 is arranged at the other end of the feeding conveyor 12 and connected to at least one transfer conveyor 32 and at least one conveyor 31 respectively. In this embodiment, the rolling screen sorting machine 3 provides the The size of the bottom slag 10 is preliminarily screened and sorted out, and the transfer conveyor 32 is provided with the bottom slag that is larger than the set size of the bottom slag and the conveyor 31 is provided with the bottom slag 10 that is less than or equal to or slightly larger than the set size of the bottom slag. As shown in Figures 2 to 5), in the rolling screen sorter 3 of the present invention, since the bottom slag 10 is discharged from the incineration plant wet, the bottom slag 10 absorbs moisture and consolidates to form clumps and is viscous. Therefore, Generally, the bottom slag 10 is reused. After the moisture content of the bottom slag 10 is reduced, the traditional round screen is used for screening, otherwise the holes of the round screen will be easily blocked and the screening function will be lost. The rolling screen classifier 3 of the present invention The screening operation plane is composed of multiple rollers 30. Each roller 30 is provided with multiple discs 301. The discs 301 of each roller 30 are staggered to form screen mesh holes. Each roller 30 will rotate and roll in place, driving the bottom slag 10 above to flip forward, and send the bottom slag 10 forward like a conveyor, which is smaller than the set bottom slag particle size (190mm±20%). The bottom slag 10 will fall into the holes between the interlaced discs 301 of the roller 30 to achieve a screening effect. The rolling screen classifier 3 of the present invention can properly screen even the bottom slag 10 with a high moisture content. There is no problem of blocking pores (as shown in the sixth figure), which is quite suitable for the operation in the bottom storage pit of the incineration plant. The transfer conveyor 32 connected to the rolling screen sorter 3 It is provided to transport the bottom slag 10 to preliminarily screen out the bottom slag 10 larger than the set size of the bottom slag. The bottom slag 10 larger than the set size of the bottom slag contains large non-ferrous metals, unburned materials and A small amount of iron metal, etc., the bottom slag 10 smaller than the set bottom slag particle size selected by the rolling screen classifier 3 is transported through the conveyor 31 connected to the rolling screen classifier 3; in this embodiment, the bottom slag particle size is set The particle size of the bottom slag 10 is greater than 19 mm and less than 19 mm, but the present invention is not limited by this. Due to the extremely high screening speed of the rolling screen classifier 3, the bottom slag 10 that is smaller than the set bottom slag particle size after sorting still has a part of the bottom slag that is slightly larger than the set bottom slag particle size, for example: the bottom slag less than 19mm The particle size of 10 still has the particle size of the bottom slag 10 whose particle size is slightly larger than 19mm.

One of the aforementioned finished product vibrating sieving machine 4 is arranged on the conveyor 31, and the bottom slag 10 smaller than or equal to the set bottom slag particle size is transported through the conveyor 31 to enter the finished product vibrating sieving machine 4 for sieving. The machine 4 is further connected to a finished product conveyor 41, and the finished product vibrating sieve 4 is used to carry out the second screening and fine sieving. The finished product vibrating sieve 4 separates the bottom slag 10 with a particle size less than or equal to the set bottom slag, and separates The bottom slag 10 larger than the set bottom slag particle size is discharged, wherein the bottom slag 10 that is less than or equal to the set bottom slag falls into the product conveyor 4, and the bottom slag 10 that is slightly larger than the set bottom slag particle size falls In the conveyor 31, the particle size of the bottom dross 10 with the bottom dross particle size set in this embodiment is less than or equal to and greater than 19mm, but this does not limit the present invention (as shown in Figures 2 to 5) Show).

One of the aforementioned second magnetic separators 5 is connected to the finished product conveyor 41 of the finished product vibrating screen 4, and provides separation of the iron metal in the bottom slag 10 that is less than or equal to the set bottom slag particle size, and makes The bottom slag 10 of the screening becomes the finished product 100 of sieved pellets, that is, the finished product of incineration regenerated pellets. In this embodiment, the second magnetic separator 5 is a suspended second magnetic separator, but it is not limited by this. Invention (as shown in Figures 2 to 5).

One of the aforementioned eddy current equipment 52 is located at the other end of the conveyor 31; since the finished product shaker 4 separates the bottom slag 10 which is slightly larger than the set bottom slag particle size (19mm), ferrous metals, batteries And many non-ferrous metals including coins, through the eddy current device 52, the ferrous metals and non-ferrous metals of the bottom slag 10 that are slightly larger than the set bottom slag particle size (19mm) are screened out (such as the second Figures to Figure 5); the eddy current device 52 uses the principle that a conductor can generate an induced current in a high-frequency alternating magnetic field, through which the eddy current device 52 generates a high-frequency alternating current on the surface of the sorting magnetic roller Strong magnetic field, when non-ferrous metal enters the strong magnetic separation area, it will induce eddy current in the metal. The magnetic field generated by this eddy current is opposite to the original magnetic field and has mutually repulsive force. This force moves the metal forward. Throwing out to achieve the purpose of separation; the eddy current device 52 of the present invention, the separation magnetic roller covering angle is 85 degrees (as shown in the seventh figure), but this does not limit the present invention, compared with the conventional eddy current The equipment (with an angle of 68 degrees or 35 degrees) has a larger separation and induction area and a better effect. The conveyor 31 is located adjacent to the finished product vibrating screen 4 and the eddy current equipment 52 with a third magnetic separator 51 The purpose of the third magnetic separator 51 is to prevent the eddy current device 52 from entering the eddy current device 52, which is slightly larger than the set bottom slag particle size. The bottom slag 10 contains iron metal, which is likely to cause high temperature damage to the eddy current device 52 when passing through a magnetic field. The iron metal is sieved out through the third magnetic separator 51 (as shown in the second to fifth figures).

One of the aforementioned crushers 53 is located at the other end of the conveyor 31 with the eddy current device 52. The present invention passes through the eddy current device 52 to slightly larger than the set bottom slag particle size (19mm) of the bottom The ferrous and non-ferrous metals of the slag 10 are sieved out, and the remaining bottom slag 10 that is slightly larger than the set bottom slag particle size (19mm) is input to the crusher 53 for crushing, and passes through a set at the lower end of the crusher 53 The collection conveyor 6 outputs back to the finished product shaker 4 (as shown in the second to fifth figures).

One of the foregoing fourth magnetic separators 8 is provided in the transfer conveyor 32 of the rolling screen sorter 3, and the fourth magnetic separator 8 provides separation of the iron and metal of the bottom slag 10. In this embodiment, the fourth Magnetic separator 8 It is a head-wheel type fourth magnetic separator, but the invention is not limited by this. (As shown in the second to fifth pictures).

One of the aforementioned manual pick-up platform conveyors 9 is connected to the other end of the transfer conveyor 32, and transports the bottom slag 10 that is separated from the ferrous metal and is larger than the set bottom slag particle size (19mm). The manual pick-up platform The conveyor 9 also forms a manual pick-up platform 91, which separates unburned materials, large non-ferrous metals, and various sundries by manual picking, and the remaining bottom slag 10 larger than the set bottom slag particle size is still Leave it on the manual pick-up platform conveyor 9 (as shown in the second to fifth figures).

One of the aforementioned jaw crushers 7 is attached to the other end of the manual picking platform conveyor 9, and the lower end of the jaw crusher 7 is additionally provided with a return conveyor 71 connected to the rolling screen sorter 3; the manual picking platform The manual pick-up platform 91 formed by the conveyor 9 separates the bottom slag 10 from unburned materials and large non-ferrous metals and various sundries by manual picking, and the rest is left on the manual pick-up platform. The conveyor 9 is larger than the set bottom slag The particle size is left on the bottom slag 10 of the manual picking platform conveyor 9, and then enters the jaw crusher 7 to be crushed to be less than or equal to the set bottom slag particle size, which is less than or equal to the set bottom slag particle size in this embodiment The particle size of the bottom slag 10 is less than 19 mm, but this does not limit the present invention (as shown in the second to fifth figures).

Thereby, the present invention uses the rolling screen classifier 3 and the finished product shaker 4 to screen the bottom slag 10 with the set bottom slag particle size, and crush the bottom slag larger than the set bottom slag particle size through the jaw crusher 7 and the crusher 53 The slag 10 is then sent to the rolling screen sorter 3 and the finished product vibrating screen 4, and through the first, second, third, and fourth magnetic separators 2, 5, 51, 8 for separating metals, and through the manual picking platform 91 The manual pick-up platform conveyor 9 and the eddy current equipment 52 pick up non-ferrous metals, unburned materials and non-ferrous metals; and then achieve, repeatedly use the roller screen sorter 3 and the finished product vibrating screen 4 to set the bottom slag particle size The bottom slag 10, the bottom slag 10 larger than the set bottom slag particle size, is crushed by the jaw crusher 7 and the crusher 53 and returned to the sieving machine 3 and the finished product shaker 4 for screening; the bottom is effectively improved The reuse of slag 10 and the reuse and simplification of equipment to maximize the benefits will greatly expand the usability of the industry and be novel and progressive.

From the above, it can be seen that the present invention has indeed achieved the desired enhancement effect under the breakthrough of the previous technical structure, and it is not easy to think of those who are familiar with the art. Moreover, the present invention has not been disclosed before the application. The novelty and advancement show that it meets the requirements of the invention patent application. I filed an invention application in accordance with the law, and I implore your office to approve this invention patent application to encourage invention.

The above-mentioned embodiments are only to illustrate the technical ideas and features of the present invention, and their purpose is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly. When they cannot be used to limit the patent scope of the present invention, That is, all equal changes or modifications made in accordance with the spirit of the present invention should still be covered by the patent scope of the present invention.

a: Provide an inner bottom slag screening process

b: Provide an intermediate bottom slag jaw crushing process

b1: Provide an intermediate bottom slag crushing process

c: Provide an outer bottom slag roll-back screen for transportation

c1: Provide an outer bottom slag re-vibration screen for transportation

Claims (1)

An incineration bottom slag reutilization screening process, which is characterized in that the process includes the following steps: (a) Provide an inner bottom slag screening process, which is to sequentially pick up the bottom slag from the bottom slag storage pit of the incineration plant. The clamped bottom slag is put into a vibrating blanking machine with a feeding conveyor at the lower end, and then the bottom slag is evenly flattened on the feeding conveyor through the vibrating blanking machine, and the bottom slag is evenly flattened on the feeding conveyor by using the The first magnetic separator that moves back and forth separates the large iron metal of the bottom slag, and then through the rolling screen sorter, the particle size of the separated large iron metal of the bottom slag is preliminarily sorted out to be larger than the set size of the bottom slag and smaller than or slightly The bottom slag that is larger than or equal to the set bottom slag particle size falls into the transfer conveyor and the conveyor respectively, and the bottom slag that is less than or equal to the set bottom slag particle size is transferred through the finished product conveyor connected to the finished product shaker. The second magnetic separator located in the finished product conveyor separates the iron metal in it to become the final product of screening granules; (b) Provides an intermediate bottom slag and jaw crushing process, which sequentially sieving through the rolling screen sorter to be larger than the set The bottom slag particle size of the bottom slag falls on the transfer conveyor connected with the rolling screen sorter, and the bottom slag larger than the set bottom slag particle size is separated by the fourth magnetic separator provided on the transfer conveyor. Metal, the remaining bottom dross, which is slightly larger than the set bottom dross particle size, is sent to the manual picking platform conveyor connected with the transfer conveyor, and the manual picking platform formed by the manual picking platform conveyor is manually picked The method separates the unburned materials and the large non-gold and iron metals and impurities, and the remaining bottom slag slightly larger than the set bottom slag particle size will enter the jaw crusher to be crushed to the bottom slag smaller than the set bottom slag particle size ; (B1) Provide an intermediate bottom slag crushing process, which sequentially screens out the bottom slag that is slightly larger than the set bottom slag particle size through the finished vibrating screen, and the bottom slag that falls into the conveyor is slightly larger than the set bottom slag particle The diameter of the bottom slag enters the eddy current equipment equipped with a third magnetic separator to separate ferrous metals and non-ferrous metals, and the remaining bottom slag that is slightly larger than the set bottom slag particle size enters the crusher for crushing; (c) Provide an outer bottom slag roll-back sieve for transportation, which sequentially transports the bottom slag larger than the set bottom slag particle size through the manual pick-up platform conveyor and is crushed by the jaw crusher to a size smaller than the set bottom slag particle size The bottom slag is transported back to the rolling screen sorter via the return-screening conveyor to re-execute the screening procedure; (c1) Provide an outer bottom slag return-vibration sieve for transportation, which falls into the conveyor in sequence and is slightly larger than the setting The bottom slag of the bottom slag particle size is crushed by the crusher to the bottom slag that is smaller than the set bottom slag particle size, and is transported back to the finished product shaker through the collecting conveyor, and the screening process is performed again; The above process separates ferrous metals, non-ferrous metals, unburned materials and impurities in the bottom slag, and crushes the bottom slag larger than the set size of the bottom slag to the bottom slag regenerated particles that meet the set size of the bottom slag Size standard.

Images