CN112892757B - Pre-separator tar residue treatment system and treatment method thereof - Google Patents

Pre-separator tar residue treatment system and treatment method thereof Download PDF

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Publication number
CN112892757B
CN112892757B CN202110069842.2A CN202110069842A CN112892757B CN 112892757 B CN112892757 B CN 112892757B CN 202110069842 A CN202110069842 A CN 202110069842A CN 112892757 B CN112892757 B CN 112892757B
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tar
crushing
pipe
preseparator
separator
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CN112892757A (en
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吴宗宾
余晓流
金瑜锋
高文斌
王小超
王鹏昌
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Ma'anshan Xinnenghuan Intelligent Technology Co ltd
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Ma'anshan Xinnenghuan Intelligent Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/08Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/18Knives; Mountings thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary 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
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary 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
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165Screen denying egress of oversize material

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses a pre-separator tar residue treatment system and a treatment method thereof, and belongs to the field of coking industry. The treatment system comprises a preseparator and a squeezing pump, wherein the outlet end of the preseparator is connected with an inlet pipeline of the squeezing pump, the outlet end of the squeezing pump is connected with the preseparator through a return pipe, the treatment system also comprises a strong crushing mechanism, the outlet end of the preseparator is connected with the strong crushing mechanism through a bearing pipe, the upper part of the strong crushing mechanism is connected with the inlet pipeline, and the lower part of the strong crushing mechanism is connected with a receiving tank. The invention overcomes the current situation that the large coke tar residues are lack of effective treatment after the coke tar residues in the coke-oven plant are pre-separated in the prior art, and can crush the large coke tar residues in the tar mixed liquid by simply modifying the pre-separation system commonly applied in the prior art.

Description

Pre-separator tar residue treatment system and treatment method thereof
Technical Field
The invention relates to the technical field of coking industry, in particular to a pre-separator tar residue treatment system and a treatment method thereof.
Background
The process flow of tar residue pre-separation in the industry is that tar ammonia water and tar residue are primarily separated by a tar residue pre-separator. And (3) the tar-ammonia water mixed solution after the preliminary separation enters a tar-ammonia water separation large tank, and simultaneously the tar residue and residual tar-ammonia water mixture generated by the preliminary separation is input into a thick matter filter. Separating by a thick matter filter, crushing ammonia water and small-particle (6-10 mm) tar residues by a tar squeezing pump, returning the crushed ammonia water and small-particle (6-10 mm) tar residues to a tar residue preseparator for continuous circulation, and discharging large-block tar residues into an underground empty tank through an external discharge valve at the bottom of the thick matter filter. However, as the existing coke-oven plant has the problem that the coke-oven plant is easy to cause the hole blockage of the squeeze pump due to the large tar slag (with the diameter of about 100 mm) mixed with the mixed solution of tar and ammonia water, the normal work of the squeeze pump is seriously affected, and the original deposited large tar slag needs manual cleaning. How to effectively crush and remove large coke tar residues has important application value for improving the fluidity and efficiency of the whole system in a coke-oven plant.
Through retrieval, the Chinese patent application number: 2013103961985, the name of invention creation is: the vertical tar ammonia water separation process oil extraction and slag removal method and system include: a mechanized slag scraping groove; the tar-ammonia water separation tank is used for receiving the mixture of the tar, the ammonia water and the small-particle tar residue which are separated for the first time; the tar residue pump is used for pumping out the small-particle tar residue and tar at the bottom of the tar ammonia water separation tank; the secondary deslagging device is used for receiving the small-particle tar residues and the tar at the bottom of the tar ammonia water separation tank pumped by the tar residue pump and carrying out secondary separation on the small-particle tar residues and the tar; the tar residue hopper is used for receiving the large-particle tar residues separated out primarily and the small-particle tar residues separated out secondarily; and the tar intermediate tank is used for receiving the tar which is discharged from the secondary deslagging device and subjected to secondary separation. The system can thoroughly discharge the small-particle tar residues out of the system, and the problem of system blockage is avoided.
Also as in the chinese patent application No.: 2012101782990, the name of inventive creation is: the system mainly comprises a tar residue preseparator, a holding tank, a mechanical clarifying tank, a tar residue adding device and the like. The process comprises the following steps: after the tar, ammonia water and tar residue mixture are primarily separated by a tar residue preseparator, the tar/ammonia water mixed solution enters the next procedure, the tar residue, the residual tar and ammonia water mixture are input into a mechanical clarifying tank for gravity separation, and the obtained mixed solution is discharged into an accommodating tank and then input into the tar residue preseparator by an underwater pump and the like. The tar residue is scraped out from the mechanical clarifying tank and then transferred to a tar residue adding device for coal blending. The application can greatly improve the pre-separation and removal effect of tar residues in the ammonia water, and the tar residues enter the mechanical clarifying tank for separation, so that the link of depositing the tar residues in the underground emptying tank can be saved, the field operation environment is improved, and the labor intensity is reduced.
The applications relate to the processing and transformation of tar residues, but still have further optimization space, and particularly how to effectively and reasonably transform the tar residues on the basis of the existing processing system which is generally applied, so that the transformation cost is obviously reduced, and the field implementation is facilitated.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the current situation that large coke tar residues after the coke tar residues in a coke-oven plant are pre-separated are lack of effective treatment and easy to deposit in the prior art, and provides a pre-separator coke tar residue treatment system and a treatment method thereof.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses a pre-separator tar residue treatment system, which comprises a pre-separator and a squeezing pump, wherein the outlet end of the pre-separator is connected with an inlet pipeline of the squeezing pump, the outlet end of the squeezing pump is connected with the pre-separator through a return pipe, the system also comprises a strong crushing mechanism, the outlet end of the pre-separator is connected with the strong crushing mechanism through a carrying pipe, a gate valve is arranged on the carrying pipe, an upper discharging pipe is arranged at the upper part of the strong crushing mechanism and connected with the inlet pipeline, a slag discharging pipe is arranged at the lower part of the strong crushing mechanism and connected with a receiving tank, and the strong crushing mechanism is used for crushing large tar residues.
Furthermore, the outlet end of the preseparator is connected with an inlet pipeline of the squeezing pump through a preseparator pipe, the receiving pipe is a branch pipe which is connected in parallel with one side of the preseparator pipe, and the preseparator pipe is also provided with a gate valve.
Furthermore, the strong crushing mechanism comprises a material bearing unit and a crushing unit, the material bearing unit is connected with the preseparator, the bottom of the material bearing unit is connected with the crushing unit, the crushing unit comprises an external crushing cylinder, and one side of the lower part of the crushing cylinder is provided with a slag discharge port for connecting with a slag discharge pipe; a transmission shaft is arranged in the crushing cylinder, the bottom end of the transmission shaft is connected with the motor and driven to rotate by the motor, a plurality of layers of crushing blades are sequentially arranged at the top end of the transmission shaft from top to bottom, a mechanical filter screen is arranged below each crushing blade, and the mechanical filter screen is arranged above the slag discharge port.
Furthermore, the material bearing unit comprises an upper cylinder and a lower conical cylinder, wherein a side connecting pipe is arranged on the side wall of the upper cylinder and used for being connected with the upper discharge pipe, and a communicating pipe used for being connected with the preseparator and a through hole used for observing the inside of the cylinder are arranged on the top wall of the upper cylinder; the bottom of the lower cone is connected with the crushing unit.
Furthermore, the transmission shaft is also provided with mechanical blades which are positioned below the mechanical filter screen.
Furthermore, in the multiple layers of crushing blades on the transmission shaft, the number of the crushing blades in each layer is different, and the number of the crushing blades from top to bottom is gradually increased.
Furthermore, a filtering blade is arranged on the transmission shaft, the filtering blade is positioned between the lowest crushing blade and the mechanical filter screen, and the bottom of the filtering blade extends to the surface of the mechanical filter screen.
Furthermore, the mechanical filter screen is an annular filter screen formed by a plurality of concentrically distributed circular screen rings, and an annular gap between every two adjacent screen rings is a filter channel.
Furthermore, the filtering blade is an inclined plane blade with a downward gradually-reduced cross-sectional area, and a plurality of protrusions distributed at intervals in a zigzag shape are arranged at the bottom of the filtering blade along the length direction, and the protrusions correspondingly extend into the annular gap of the mechanical filter screen.
The invention relates to a treatment method of tar residues of a preseparator, which is carried out by utilizing the treatment system according to the following processes: the tar residues discharged by the pre-separator can be selectively treated, or directly enter a press pump for treatment through a pre-separator pipe, or the pre-separator pipe is closed, a receiving pipe arranged at the outlet end of the pre-separator is opened, so that the tar residues enter a strong crushing mechanism, a part of the tar residues directly flow into the press pump through an upper discharge pipe at the upper part of the strong crushing mechanism, and a part of the tar residues are crushed by the strong crushing mechanism and then discharged into a receiving tank through a bottom slag discharge pipe; the tar residue treated by the squeeze pump flows back to the pre-separator through a return pipe for circular treatment.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) The tar residue treatment method of the preseparator can directly convey the tar residue into the squeezing pump through the preseparator pipe and can also convey the tar residue into the strong crushing mechanism through the bearing pipe, under the condition of keeping the original treatment system unchanged, the special crushing can be carried out on the large tar residue in the tar mixed solution by simply modifying and additionally arranging the strong crushing mechanism, the double crushing treatment mode of the tar residue is realized, the problem of large tar residue siltation in the production of a coking plant is solved, the modification cost is low, and the applicability is strong.
(2) According to the tar residue treatment system of the preseparator, provided by the invention, the receiving pipe, the upper discharge pipe and the residue discharge pipe of the strong crushing mechanism are respectively provided with the gate valve, and the gate valves on the upper discharge pipe can be controlled to help to control and adjust the feeding flow rate in the strong crushing mechanism, so that tar residues are prevented from being deposited in the strong crushing mechanism, and the optimal flow rate state control of the whole system is realized.
(3) According to the pre-separator tar residue treatment system, the strong crushing mechanism utilizes the crushing blades distributed in multiple layers to carry out multi-stage crushing on large tar residues, so that the crushing effect is enhanced, and the problem of large tar residues which are difficult to treat in the production of a coking plant is solved; and a mechanical filter screen is arranged below the crushing blade, so that the crushed tar residues can be further subjected to particle size screening, the tar residues with large particle sizes are prevented from flowing into equipment below, and the application safety is guaranteed.
(4) According to the tar residue treatment system of the preseparator, provided by the invention, the mechanical paddle is also arranged on the transmission shaft in the strong crushing mechanism and is positioned below the mechanical filter screen, so that the crushed tar residue can be effectively prevented from being deposited in the crushing device, and the tar residue can be favorably and smoothly discharged in time.
(5) According to the tar residue treatment system of the preseparator, the number of the crushing blades on each layer from top to bottom on the transmission shaft in the strong crushing mechanism is gradually increased, so that large tar residues are favorably and fully and uniformly crushed, and the crushing blades are inclined plane type blades with the cross-sectional areas gradually reduced from bottom to top, so that large tar residues which are not crushed are favorably beaten to the upper end to continue to be secondarily crushed.
(6) According to the tar residue treatment system of the preseparator, the transmission shaft in the strong crushing mechanism is also provided with the filtering blade, the filtering blade is positioned between the lowest crushing blade and the mechanical filter screen, and the filtering blade is an inclined plane type blade with the cross section area gradually reduced downwards, so that large blocks of crushed tar residues can be pumped to an outlet to prevent sedimentation.
Drawings
FIG. 1 is a schematic diagram of a pre-separator tar residue treatment system according to the present invention;
FIG. 2 is a schematic structural diagram of a strong crushing mechanism according to the present invention;
FIG. 3 is a schematic structural view of the loading unit of the present invention;
FIG. 4 is a schematic view of the construction of the crushing unit according to the present invention;
FIG. 5 is a schematic view showing the internal structure of the crushing unit according to the present invention;
fig. 6 is an enlarged schematic view of the mechanical strainer of the present invention.
The reference numerals in the schematic drawings illustrate:
1. a strong crushing mechanism; 2. a pre-separator; 3. a bearing pipe; 4. a gate valve; 5. a preseparator tube; 6. a squeeze pump; 7. a return pipe; 8. an inlet duct; 9. arranging pipes in the pipe; 10. a slag discharge pipe; 11. a receiving tank;
100. a material bearing unit; 200. a crushing unit; 300. a motor connecting flange; 101. an upper cylinder; 102. a lower cone; 103. a side connection pipe; 104. a communicating pipe; 105. a through hole; 201. crushing the cylinder; 202. a slag discharge port; 203. a drive shaft; 204. crushing the blade; 205. a mechanical filter screen; 206. a stationary ring; 207. a mechanical paddle; 208. a seal member; 209. a filtering blade; 210. a support rod.
Detailed Description
For a further understanding of the invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention will be further described with reference to the following examples.
Example 1
As shown in fig. 1, the system for treating tar residue of a preseparator of the present embodiment includes a preseparator 2 and a squeeze pump 6, an outlet end of the preseparator 2 is connected to an inlet pipe 8 of the squeeze pump 6, specifically, the preseparator pipe 5 is connected to the inlet pipe 8 of the squeeze pump 6, an outlet end of the squeeze pump 6 is connected to the preseparator 2 through a return pipe 7, which is a tar residue treatment mode widely used in the industry at present, after tar residue is separated by the preseparator 2, the tar residue sequentially passes through the preseparator pipe 5 and the inlet pipe 8 to enter the squeeze pump 6 for crushing, and after crushing, the tar residue returns to the preseparator 2 through the return pipe 7 to continue circulation.
The present embodiment is designed for the above problems encountered in the industry at present, and the present embodiment is additionally provided with a strong crushing mechanism 1 under the condition of keeping the original treatment system unchanged, as shown in fig. 1, specifically, the outlet end of the preseparator 2 is connected with the strong crushing mechanism 1 through a receiving pipe 3, the receiving pipe 3 is provided with a gate valve 4, the upper part of the strong crushing mechanism 1 is provided with an upper discharging pipe 9 connected with an inlet pipeline 8, the lower part of the strong crushing mechanism 1 is provided with a slag discharging pipe 10 connected with a receiving tank 11, and the strong crushing mechanism 1 is used for crushing the large tar residues. Gate valves are arranged on the upper discharging pipe 9 and the slag discharging pipe 10. More specifically, the outlet end of the preseparator 2 is connected with an inlet pipeline 8 of a squeezing pump 6 through a preseparator pipe 5, the receiving pipe 3 is a branch pipe connected in parallel with one side of the preseparator pipe 5, and the preseparator pipe 5 is also provided with a gate valve 4. Through the control of the gate valve 4, the outlet end of the pre-separator 2 can directly convey the tar residues into the squeeze pump 6 through the pre-separator pipe 5, and also can convey the tar residues into the strong crushing mechanism 1 through the receiving pipe 3, small-particle tar residues in the strong crushing mechanism 1 can be discharged into the squeeze pump 6 again through the upper discharge pipe 9 on the upper part for crushing treatment, and return to the pre-separator 2 through the return pipe 7 for continuous circulation, large-particle tar residues are specially crushed by the strong crushing mechanism 1, and the treated residues can be discharged into the receiving tank 11 through the residue discharge pipe 10. And through controlling the gate valve 4 on the upper discharging pipe 9, can help controlling and adjusting the feeding flow rate in the strong crushing mechanism 1, prevent that the tar sediment from silting up in the strong crushing mechanism 1, realize the best flow rate state control of entire system.
In the practical operation of the method for treating the tar residue of the preseparator in the embodiment, the tar residue discharged by the preseparator 2 can be selectively treated under the control of the gate valve 4, or directly enters the squeeze pump 6 for treatment through the preseparator pipe 5, or the preseparator pipe 5 is closed, the receiving pipe 3 arranged at the outlet end of the preseparator 2 is opened, so that the tar residue enters the strong crushing mechanism 1, the small-particle tar residue in the strong crushing mechanism 1 can be discharged into the squeeze pump 6 again through the upper discharge pipe 9 at the upper part for crushing treatment, and returns to the preseparator 2 again through the return pipe 7 for continuous circulation, the large-particle tar residue is specially crushed by the strong crushing mechanism 1, and the treated residue can be discharged into the receiving tank 11 through the residue discharge pipe 10. When no larger tar residue exists in the tar residue, the gate valve 4 on the adapting pipe 3 can be directly closed, and the traditional squeezing pump 6 is still adopted for crushing treatment and backflow. On the basis of keeping the original system equipment, the double-crushing treatment mode of the tar residue is realized through simple equipment transformation, and the transformation cost is low.
Example 2
The system for treating tar residue in a pre-separator of the embodiment is basically the same as that in embodiment 1, and further illustrates that in the embodiment, the strong crushing mechanism 1 includes a material holding unit 100 and a crushing unit 200, as shown in fig. 2, the material holding unit 100 is connected with the pre-separator 2 on the upper layer, the bottom of the material holding unit 100 is connected with the crushing unit 200, the crushing unit 200 includes an external crushing cylinder 201, and one side of the lower part of the crushing cylinder 201 is provided with a residue discharge port 202 for connecting with a residue discharge pipe 10 and discharging crushed residue; a transmission shaft 203 is arranged in the crushing cylinder 201, the bottom end of the transmission shaft 203 is connected with a motor and driven to rotate by the motor, specifically, the transmission shaft 203 extends out of the bottom wall of the crushing cylinder 201, a sealing element 208 is arranged between the transmission shaft 203 and the bottom wall of the crushing cylinder 201 for sealing, a plurality of layers of crushing blades 204 are sequentially arranged at the top end of the transmission shaft 203 from top to bottom, a mechanical filter screen 205 is arranged below the crushing blades 204, and the mechanical filter screen 205 is arranged above the slag discharge port 202. The lower end of the crushing unit 200 is provided with a motor connecting flange 300 for connecting with a driving motor of the transmission shaft 203, two bearings and a bearing end cover at the lower end are arranged in the motor connecting flange 300, the transmission shaft 203 is correspondingly arranged in the motor connecting flange 300, and a sealing element 208 arranged on the bottom wall of the crushing cylinder 201 is connected with the motor connecting flange 300 at the lower end.
In the embodiment, the crushing blades 204 distributed in multiple layers are specially used for carrying out multistage crushing on the large tar residues, which is beneficial to enhancing the crushing effect and solving the problem of the large tar residues which are difficult to process in the production of a coking plant; and a mechanical filter screen 205 is arranged below the crushing blade 204, so that the crushed tar residues can be further subjected to particle size screening, the tar residues with large particle sizes are prevented from flowing into equipment below, and the crushed tar residues are discharged through a residue discharge port 202 at the bottom.
As shown in fig. 3, the material loading unit 100 comprises an upper cylinder 101 and a lower cone 102, a side connecting pipe 103 is arranged on the side wall of the upper cylinder 101 for connecting with the upper discharging pipe 9, a communicating pipe 104 for connecting with the tar residue pre-separator and a through hole 105 for observing the conditions in the cylinder are arranged on the top wall of the upper cylinder 101; the bottom of the lower cone 102 is connected to the crushing unit 200. Specifically, two through holes 105 are symmetrically formed in the top wall of the upper cylinder 101, and are respectively located on two sides of the communication pipe 104.
When the method is specifically applied to the embodiment, the communicating pipe 104 of the material bearing unit 100 is connected with the preseparator 2 on the upper layer, the pre-separated tar residue enters the material bearing unit 100, and the finely-divided tar residue with smaller particle size can be directly discharged to the press pump 6 for subsequent treatment through the side connecting pipe 103 and the upper discharge pipe 9 on the upper part; the large tar slag with larger particle size is guided by the funnel-shaped lower cone 102 to rapidly enter the crushing unit 200.
Example 3
In the system for treating tar residue in a pre-separator of the present embodiment, substantially as in the above embodiment, further, as shown in fig. 5, in the crushing unit 200 of the present embodiment, a mechanical blade 207 is further disposed on the transmission shaft 203, and the mechanical blade 207 is located below the mechanical screen 205. Specifically, the two mechanical blades 207 are arranged on the transmission shaft 203 and located on two sides, and synchronously rotate along with the transmission shaft 203, and the mechanical blades 207 can effectively prevent the tar residues after being crushed from being deposited in the inner part, so that the tar residues can be discharged smoothly in time. The number and the installation angle of the mechanical paddles 207 can be flexibly adjusted according to specific use requirements, and are not described herein.
Example 4
In the system for treating tar residue in a pre-separator of the present embodiment, basically as in the above embodiments, further, in the present embodiment, the number of the crushing blades 204 in each layer is different in the multiple layers of the crushing blades 204 on the transmission shaft 203, and the number of the crushing blades 204 increases from top to bottom. As shown in fig. 5, in this embodiment, three layers of crushing blades 204 are specifically provided, the number of each layer from top to bottom is 2, 3, and 4, the plurality of crushing blades 204 on each layer are uniformly distributed along the circumferential direction of the transmission shaft 203 at intervals, and the plurality of layers of crushing blades 204 are distributed in a staggered manner, so that when the transmission shaft 203 is driven to rotate, the plurality of layers of crushing blades 204 are driven to rotate, which is helpful for sufficiently and uniformly crushing large tar residues. Further, the disintegrating blades 204 are beveled type blades having a cross-sectional area gradually decreasing from bottom to top. As shown in fig. 6, the inclined surface type edge of the crushing edge 204 is an upward inclined edge, which helps to hit the large tar slag that is not crushed to the upper end for further secondary crushing.
Example 5
In the tar residue treatment system of the present embodiment, basically as in the above embodiment, in addition, in the present embodiment, the transmission shaft 203 is further provided with a filtering blade 209, the filtering blade 209 is located between the lowest crushing blade 204 and the mechanical screen 205, and the bottom of the filtering blade 209 extends to the surface of the mechanical screen 205. The quantity of filtering cutting edge 209 is less than the quantity of the broken cutting edge 204 of lowest floor, and filtering cutting edge 209 sets up to two in this embodiment of concrete, and even interval distributes in transmission shaft 203 both sides.
As shown in fig. 6, the filtering blade 209 in this embodiment is an annular filtering net formed by a plurality of concentrically distributed circular net rings, and an annular gap between adjacent net rings is a filtering passage. The filtering blade 209 is an inclined blade with a cross-sectional area gradually reduced downward, which helps to prevent the crushed large tar slag from silting up at the outlet, and in this embodiment, the filtering blade may be an inclined blade with an isosceles trapezoid cross-section. Filter cutting edge 209 bottom and be a plurality of archs that zigzag interval distributed along length direction is equipped with, in the protruding annular gap that corresponds and extend into mechanical filter screen 205, then form the clearance that supplies to hold filter cutting edge 209 wire winding between two adjacent archs, when transmission shaft 203 synchronous drive filters cutting edge 209 and rotates, filter cutting edge 209 then can directly clear up remaining tar sediment in mechanical filter screen 205 surface and the clearance, avoid silting up on mechanical filter screen 205 surface.
In this embodiment, the mechanical filter 205 is fixedly mounted on the fixing ring 206, the fixing ring 206 includes an outer ring body and supporting rods 210 uniformly distributed at intervals in the ring body along the circumferential direction, each supporting rod 210 is provided with a plurality of supporting blocks extending upward, and the supporting blocks are correspondingly fixedly connected to the bottom of the ring of the mechanical filter 205, for example, by welding. The retainer plate 206 is installed on the transmission shaft 203 through a rotating bearing in a matching manner and is located below the mechanical filter screen 205, and is used for fixedly supporting the mechanical filter screen 205 and keeping the position stability of the mechanical filter screen 205, and the support blocks on the upper portion of the retainer plate 206 and the protrusions at the bottom of the filtering blades 209 are distributed in a staggered manner and are not influenced by each other.
The strong crushing mechanism 1 of the embodiment has simple overall structure design and lower manufacturing cost, can be directly installed and applied to the pre-separation treatment system commonly adopted at present of the tar residues, completes crushing, filtering, cleaning and deslagging of large tar residues, and has strong adaptability.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims (8)

1. The utility model provides a preseparator tar sediment processing system, includes preseparator (2) and squeeze pump (6), and the exit end of preseparator (2) links to each other with inlet pipeline (8) of squeeze pump (6), and the exit end of squeeze pump (6) passes through back flow (7) and links to each other its characterized in that with preseparator (2): the device is characterized by further comprising a strong crushing mechanism (1), wherein the outlet end of the preseparator (2) is connected with the strong crushing mechanism (1) through a bearing pipe (3), a gate valve (4) is arranged on the bearing pipe (3), the outlet end of the preseparator (2) is connected with an inlet pipeline (8) of a squeeze pump (6) through a preseparator pipe (5), the bearing pipe (3) is a branch pipe which is connected in parallel to one side of the preseparator pipe (5), and the preseparator pipe (5) is also provided with a gate valve (4);
the upper part of the strong crushing mechanism (1) is provided with an upper discharge pipe (9) connected with an inlet pipeline (8), the lower part of the strong crushing mechanism (1) is provided with a slag discharge pipe (10) connected with a receiving tank (11), and the strong crushing mechanism (1) is used for crushing large tar residues; the strong crushing mechanism (1) comprises a material bearing unit (100) and a crushing unit (200), the material bearing unit (100) is connected with the pre-separator (2), the bottom of the material bearing unit (100) is connected with the crushing unit (200), the crushing unit (200) comprises an external crushing cylinder (201), and one side of the lower part of the crushing cylinder (201) is provided with a slag discharge port (202) for being connected with a slag discharge pipe (10); a transmission shaft (203) is arranged inside the crushing cylinder (201), the bottom end of the transmission shaft (203) is connected with a motor and driven to rotate by the motor, a plurality of layers of crushing blades (204) are sequentially arranged at the top end of the transmission shaft (203) from top to bottom, a mechanical filter screen (205) is arranged below each crushing blade (204), and the height of each mechanical filter screen (205) is higher than a slag discharge port (202).
2. The pre-separator tar residue treatment system of claim 1, wherein: the material bearing unit (100) comprises an upper cylinder (101) and a lower cone (102), a side connecting pipe (103) is arranged on the side wall of the upper cylinder (101) and is used for being connected with the upper discharge pipe (9), a communicating pipe (104) used for being connected with the preseparator (2) and a through hole (105) used for observing the interior of the cylinder are arranged on the top wall of the upper cylinder (101); the bottom of the lower cone (102) is connected with the crushing unit (200).
3. The pre-separator tar residue treatment system of claim 1, wherein: the transmission shaft (203) is also provided with a mechanical paddle (207), and the mechanical paddle (207) is positioned below the mechanical filter screen (205).
4. The pre-separator tar residue treatment system of claim 1, wherein: in the multiple layers of crushing blades (204) on the transmission shaft (203), the number of the crushing blades (204) in each layer is different, and the number of the crushing blades (204) from top to bottom is gradually increased.
5. The pre-separator tar residue treatment system of claim 1, wherein: the transmission shaft (203) is also provided with a filtering blade (209), the filtering blade (209) is positioned between the lowest-layer crushing blade (204) and the mechanical filter screen (205), and the bottom of the filtering blade (209) extends to the surface of the mechanical filter screen (205).
6. The pre-separator tar residue treatment system of claim 5, wherein: the mechanical filter screen (205) is an annular filter screen formed by a plurality of concentrically distributed circular screen rings, and an annular gap between every two adjacent screen rings is a filter channel.
7. The pre-separator tar residue treatment system of claim 6, wherein: the filtering blade (209) is an inclined plane blade with a downward tapered cross-sectional area, a plurality of protrusions distributed at intervals in a zigzag shape are arranged at the bottom of the filtering blade (209) along the length direction, and the protrusions correspondingly extend into an annular gap of the mechanical filter screen (205).
8. A method of processing by referring to the pre-separator tar residue processing system of any of claims 1-7, wherein: the tar residues discharged by the pre-separator (2) can be selectively treated, or directly enter a squeezing pump (6) for treatment through a pre-separator pipe (5), or the pre-separator pipe (5) is closed, a receiving pipe (3) arranged at the outlet end of the pre-separator (2) is opened, so that the tar residues enter a strong crushing mechanism (1), a part of the tar residues directly flow into the squeezing pump (6) through an upper discharge pipe (9) at the upper part of the strong crushing mechanism (1), and a part of the tar residues are crushed by the strong crushing mechanism (1) and then are discharged into a receiving tank (11) through a residue discharge pipe (10) at the bottom; the tar residue treated by the squeeze pump (6) flows back to the pre-separator (2) through a return pipe (7) for circular treatment.
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CN204074468U (en) * 2014-06-30 2015-01-07 上海宝钢化工有限公司 With the tar slag pre-separation filter of crushing function
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