CN112892752B

CN112892752B - Large-block tar residue crushing device in tar mixed liquid

Info

Publication number: CN112892752B
Application number: CN202110069733.0A
Authority: CN
Inventors: 吴宗宾; 余晓流; 金瑜锋; 高文斌; 王小超; 王鹏昌
Original assignee: Ma'anshan Xinnenghuan Intelligent Technology Co ltd
Current assignee: Ma'anshan Xinnenghuan Intelligent Technology Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2023-05-05
Anticipated expiration: 2041-01-19
Also published as: CN112892752A

Abstract

The invention discloses a device for crushing massive tar residues in tar mixed liquid, and belongs to the field of coking industry. The invention comprises a material bearing unit and a crushing unit, wherein the material bearing unit is used for being connected with a tar residue preseparator, the bottom of the material bearing unit is connected with the crushing unit, the crushing unit comprises a crushing cylinder, and a slag discharging pipe is arranged on one side of the crushing cylinder; the inside transmission shaft that is equipped with of crushing drum, transmission shaft bottom link to each other with the motor, and the transmission shaft top is equipped with multilayer crushing cutting edge from top to bottom in proper order, and mechanical filter screen is installed to the below of crushing cutting edge. The invention overcomes the current situation that large-block tar residues are lack of effective treatment and easy to be deposited after the tar residues of a coking plant are pre-separated in the prior art, and aims to provide a large-block tar residue crushing device in tar mixed liquid, which can crush large-block tar residues in solid-liquid mixtures of tar, ammonia water and tar residues by utilizing crushing blades arranged in multiple layers, thereby solving the problem of difficult-to-treat large-block tar residues in the production of the coking plant.

Description

Large-block tar residue crushing device in tar mixed liquid

Technical Field

The invention relates to the technical field of coking industry, in particular to a device for crushing massive tar residues in tar mixed liquor.

Background

The common tar residue pre-separation process flow in the industry is that tar ammonia water and tar residue are primarily separated by a tar residue pre-separator. And (3) feeding the tar and ammonia water mixed solution after primary separation into a tar and ammonia water separation large tank, and simultaneously feeding the mixture of tar residue and residual tar and ammonia water generated by primary separation 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 to a tar residue preseparator for continuous circulation, and discharging large-sized tar residues into a subsurface emptying tank by an external discharge valve at the bottom of the thick matter filter. However, because large-block tar residues (with the diameter of about 100 mm) are mixed in the mixed solution of tar and ammonia water in the existing coking plant, the hole blocking of a squeezing pump is easy to cause, the normal operation of the squeezing pump is seriously influenced, and the original accumulated large-block tar residues need to be manually cleaned. How to effectively crush and remove large-block tar residues has important application value for improving the fluidity and efficiency of the whole system in a coking plant.

Through searching, chinese patent application number: 2019104960811, the invention is named: the utility model provides a tar residue innocent treatment device, this application is including scraping material subassembly, stirring liquefaction subassembly, broken grinding subassembly and separation subassembly, scrape material collection through setting up, heating, stirring liquefaction, broken grinding and centrifugal separation are carried out in proper order to tar residue, thereby tar in the tar residue separates out, and obtain powdered dry residue, wherein the tar that separates out can be discharged into the oil depot by the tar groove, thereby effectively collect and utilize containing tar in the tar residue, the dry residue that the moisture content of while separation is lower can be joined in marriage into coking coal, the viscosity of tar residue is great has been avoided, be difficult for mixing when blending coal, sometimes also appear the unloading is unsmooth, influence the problem of rubbing crusher's operation when serious.

Another example is chinese patent application No.: 2018114492048, the invention is named: the hot breaker of slag, this application include the casing to and install the slag jar in the casing, be provided with the dodge gate at the top that casing and slag jar are relative, still install in the casing: a hopper groove for receiving steel slag in the steel slag tank, and a slag discharging port at the bottom is communicated with the bottom of the shell; the crushing device is used for crushing the steel slag through a primary roller and a secondary roller with comb teeth on the circumferential surface; a spraying device for spraying cooling water to the steel slag; a steam exhaust pipe for outputting steam to the waste heat utilization device; a slag conveying device for outputting the processed slag; and a driving device for driving the components to work. This application enables a first crushing of the liquid or semi-liquid steel slag in the uncooled state, followed by water spray cooling, and then a second thermal crushing. The above applications relate to the crushing treatment of oil and steel slag, respectively, but there is still room for further improvement and optimization.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to overcome the current situation that large-block tar residues are lack of effective treatment and easy to deposit after the pre-separation of the tar residues in a coking plant in the prior art, and aims to provide a large-block tar residue crushing device in a tar mixed solution, which can crush large-block tar residues in a solid-liquid mixture of tar, ammonia water and tar residues by using crushing blades, so that the problem of difficult-to-treat large-block tar residues in the production of the coking plant is solved.

2. Technical proposal

In order to achieve the above purpose, the technical scheme provided by the invention is as follows:

the invention relates to a large-block tar residue crushing device in tar mixed liquid, which comprises a material bearing unit and a crushing unit, wherein the material bearing unit is connected with a tar residue preseparator on the upper layer, the bottom of the material bearing unit is connected with the crushing unit, the crushing unit comprises an external crushing cylinder, and a slag discharging pipe is arranged on one side of the lower part of the crushing cylinder; the inside transmission shaft that is equipped with of crushing drum, transmission shaft bottom link to each other and are rotated by its drive with the motor, and the transmission shaft top is equipped with multilayer crushing cutting edge from top to bottom in proper order, and mechanical filter screen is installed to the below of crushing cutting edge, and mechanical filter screen height is in the scum pipe top.

Further, a motor connecting flange is arranged at the lower end of the crushing unit and is used for being connected with a driving motor of the transmission shaft.

Further, the material bearing unit comprises an upper cylinder and a lower cone cylinder, a side connecting pipe is arranged on the side wall of the upper cylinder, a communicating pipe used for being connected with the tar residue 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.

Further, mechanical paddles are arranged on the transmission shaft and positioned below the mechanical filter screen.

Further, in the multiple layers of crushing blades on the transmission shaft, the number of the crushing blades of each layer is different, and the number of the crushing blades is gradually increased from top to bottom.

Still further, still be equipped with the filtration cutting edge on the transmission shaft, the filtration cutting edge is located between the minimum floor's crushing cutting edge and the mechanical filter screen, and filtration cutting edge bottom extends to mechanical filter screen surface.

Furthermore, the mechanical filter screen is an annular filter screen surrounded by a plurality of concentric circular filter screens, and annular gaps between adjacent filter screens are filter channels.

Furthermore, the filtering blade is an inclined blade with a downward tapered cross section area, and the bottom of the filtering blade is provided with a plurality of protrusions which are distributed at intervals in a zigzag manner along the length direction, and the protrusions correspondingly extend into the annular gap of the mechanical filter screen.

Still further, mechanical filter screen fixed mounting is on the retainer plate, and the retainer plate includes outside circle body to and along the evenly spaced apart distribution's of circumference bracing piece in the circle body, every bracing piece all is equipped with a plurality of supporting shoe that extend upwards, and this supporting shoe corresponds the net circle bottom fixed connection with mechanical filter screen.

Further, the crushing blade is an inclined blade with the cross-sectional area gradually decreasing from bottom to top.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) According to the large-block tar residue crushing device in the tar mixed solution, the material bearing unit is matched with the crushing unit, the large-block tar residue is crushed in multiple stages by utilizing the crushing blades distributed in multiple layers after the material is guided into the crushing unit by the material bearing unit, so that the crushing effect is enhanced, and the problem of large-block tar residue which is 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, large-particle-size tar residues are prevented from flowing into equipment below, and the application safety is ensured.

(2) According to the large-block tar residue crushing device in the tar mixed solution, the lower part of the material bearing unit is provided with the funnel-shaped structure, and the small-sized fine crushed tar residues with smaller particle sizes can be directly discharged through the side connecting pipe at the upper part and are connected with other equipment for subsequent treatment; a gate valve can be arranged on the side connecting pipe to cooperatively control and regulate the flow rate of tar residues, so that internal siltation is prevented; large-block tar residues with larger particle size are guided by a funnel-shaped lower cone barrel to rapidly enter the crushing unit, so that smooth operation is ensured.

(3) According to the large-block tar residue crushing device in the tar mixed solution, the mechanical paddles are further arranged on the transmission shaft and positioned below the mechanical filter screen, so that the crushed tar residue can be effectively prevented from being deposited in the crushing device, and timely and smooth discharge of the tar residue is guaranteed.

(4) According to the large-block tar residue crushing device in the tar mixed solution, the number of the crushing blades on each layer from top to bottom on the transmission shaft is gradually increased, so that the large-block tar residue can be uniformly crushed, the crushing blades are inclined-plane blades with the cross-sectional areas gradually reduced from bottom to top, and the large-block tar residue which is not crushed can be crushed continuously and secondarily crushed at the upper end.

(5) According to the large-block tar residue crushing device in the tar mixed solution, the transmission shaft is also provided with the filtering blade, the filtering blade is positioned between the lowest layer of crushing blade and the mechanical filter screen, and the filtering blade is the inclined-plane blade with the cross-section area tapered downwards, so that the crushed large-block tar residue can be helped to be beaten to the outlet to prevent siltation.

Drawings

FIG. 1 is a schematic structural view of a large-scale tar residue crushing device in a tar mixed solution;

FIG. 2 is a schematic diagram of a material carrying unit according to the present invention;

FIG. 3 is a schematic view of the crushing unit according to the present invention;

FIG. 4 is a schematic view showing the internal structure of the crushing unit according to the present invention;

fig. 5 is an enlarged schematic view of the mechanical filter according to the present invention.

Reference numerals in the schematic drawings illustrate:

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. a crushing cylinder; 202. a slag discharge pipe; 203. a transmission shaft; 204. crushing the blade; 205. a mechanical filter screen; 206. a fixing ring; 207. mechanical paddles; 208. a seal; 209. a filtering blade; 210. and (5) supporting the rod.

Detailed Description

For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured 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 invention is further described below with reference to examples.

Example 1

1-5, the device for crushing massive tar residues in the tar mixed solution of the embodiment comprises a material bearing unit 100 and a crushing unit 200, wherein the material bearing unit 100 is used for being connected with a tar residue preseparator on the upper layer, the bottom of the material bearing unit 100 is connected with the crushing unit 200, as shown in FIG. 3, the crushing unit 200 comprises an external crushing cylinder 201, and a slag discharging pipe 202 is arranged on one side of the lower part of the crushing cylinder 201 and used for discharging crushed residues; the inside transmission shaft 203 that is equipped with of crushing drum 201, transmission shaft 203 bottom link to each other and by its drive rotation, specifically, transmission shaft 203 extends beyond crushing drum 201 diapire outside, and still is equipped with sealing member 208 between transmission shaft 203 and the crushing drum 201 diapire and seals, and transmission shaft 203 top is equipped with multilayer crushing cutting edge 204 from top to bottom in proper order, and mechanical filter screen 205 is installed to the below of crushing cutting edge 204, and mechanical filter screen 205 highly is in scum pipe 202 top.

In the embodiment, the material bearing unit 100 is matched with the crushing unit 200, and the material is firstly guided by the material bearing unit 100 to enter the crushing unit 200, and then the multi-stage crushing is carried out on the massive tar residues by utilizing the crushing blades 204 distributed in multiple layers, so that the crushing effect is enhanced, and the problem of massive tar residues which are difficult to process in the production of a coking plant is solved; the 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, large-particle-size tar residues are prevented from flowing into lower equipment, and the crushed tar residues are discharged through the slag discharge pipe 202 at the bottom.

Example 2

In the device for crushing large-sized tar residues in a tar mixing solution according to this embodiment, which is substantially the same as that of embodiment 1, further, as shown in fig. 2, a material bearing unit 100 in this embodiment includes an upper cylinder 101 and a lower cone 102, a side connecting pipe 103 is disposed on a side wall of the upper cylinder 101, a communicating pipe 104 for connecting with a tar residue pre-separator is disposed on a top wall of the upper cylinder 101, and a through hole 105 for observing conditions in the cylinder is disposed; specifically, two through holes 105 are symmetrically provided on the top wall of the upper cylinder 101, and are respectively located at both sides of the communicating tube 104. The bottom of the lower cone 102 is connected with the crushing unit 200, 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 piece 208 arranged on the bottom wall of the crushing cylinder 201 is connected with the motor connecting flange 300 at the lower end.

When the embodiment is specifically applied, the communicating pipe 104 of the material bearing unit 100 is utilized to be connected with the tar residue pre-separator at the upper layer, the pre-separated tar residue enters the material bearing unit 100, the small-particle-size finely crushed tar residue can be directly discharged through the side connecting pipe 103 at the upper part to be connected with other equipment for subsequent treatment, and the side connecting pipe 103 can be provided with a gate valve to cooperate with control and regulation of the flow rate of the tar residue so as to prevent internal siltation; large-sized tar residues are guided by the funnel-shaped lower cone 102 to rapidly enter the crushing unit 200, a motor connecting flange 300 is arranged at the lower end of the crushing unit 200, and a plurality of reinforcing rib plates are further arranged between the outer wall of the crushing unit 200 and the motor connecting flange 300.

Example 3

Further, as shown in fig. 4, in the apparatus for crushing large-sized tar residues in the tar mixing solution according to the present embodiment, a mechanical paddle 207 is further disposed on the transmission shaft 203, and the mechanical paddle 207 is located under the mechanical filter 205. Specifically, two mechanical paddles 207 are arranged on the transmission shaft 203 and located on two sides, and synchronously rotate along with the transmission shaft 203, and the crushed tar residues can be effectively prevented from being deposited in the crushing device by arranging the mechanical paddles 207, so that timely and smooth discharge of the tar residues is guaranteed. The number and the installation angle of the mechanical paddles 207 can be flexibly adjusted according to specific use requirements, and are not described here.

Example 4

In the device for crushing large-sized tar residues in the tar mixed solution according to the present embodiment, basically the same as the above embodiment, further, in the multiple layers of crushing blades 204 on the transmission shaft 203 in the present embodiment, the number of the crushing blades 204 on each layer is different, and the number of the crushing blades 204 is gradually increased from top to bottom. As shown in fig. 4, in this embodiment, three layers of crushing blades 204 are specifically provided, the number of each layer from top to bottom is 2, 3, 4, and the plurality of crushing blades 204 of each layer are uniformly distributed at intervals along the circumferential direction of the transmission shaft 203, and the plurality of layers of crushing blades 204 are distributed in a staggered manner, so that the plurality of layers of crushing blades 204 are driven to rotate when the transmission shaft 203 is driven to rotate, which is helpful for sufficiently and uniformly crushing the massive tar residues. Still further, the crushing blade 204 is a beveled blade with a cross-sectional area that gradually decreases from bottom to top. As shown in fig. 5, the bevel blade of the crushing blade 204 is an upward inclined blade, which is helpful for crushing large tar residues without crushing to the upper end for further secondary crushing, and in this embodiment, the bevel blade may be a single-side inclined blade with a right trapezoid cross section.

Example 5

In this embodiment, substantially similar to the above embodiment, the transmission shaft 203 is further provided with a filtering blade 209, where the filtering blade 209 is located between the lowest layer of crushing blade 204 and the mechanical filter 205, and the bottom of the filtering blade 209 extends to the surface of the mechanical filter 205. The number of the filtering blades 209 is smaller than that of the lowest layer of the crushing blades 204, and in this embodiment, the filtering blades 209 are two, and are uniformly distributed at two sides of the transmission shaft 203 at intervals.

As shown in fig. 5, the filtering blade 209 in this embodiment is an annular filter screen surrounded by a plurality of concentric circular mesh rings, and the annular gap between the adjacent mesh rings is the filtering channel. The filtering blade 209 is a bevel blade with a downward tapered cross-sectional area, which helps to drive the crushed large tar residues to the outlet to prevent sedimentation, and in this embodiment, may be a double-sided bevel blade with an isosceles trapezoid cross-section. The bottom of the filtering blade 209 is provided with a plurality of bulges which are zigzag and distributed at intervals along the length direction, the bulges correspondingly extend into the annular gap of the mechanical filter screen 205, a gap for accommodating the net ring of the filtering blade 209 is formed between two adjacent bulges, and when the transmission shaft 203 synchronously drives the filtering blade 209 to rotate, the filtering blade 209 can directly clean the surface of the mechanical filter screen 205 and residual tar residues in the gap, so that the surface of the mechanical filter screen 205 is prevented from being deposited.

In this embodiment, the mechanical filter screen 205 is fixedly mounted on the fixing ring 206, the fixing ring 206 includes an outer ring body and support rods 210 uniformly distributed in the ring body along the circumferential direction at intervals, each support rod 210 is provided with a plurality of support blocks extending upwards, and the support blocks are correspondingly fixedly connected with the bottom of the ring of the mechanical filter screen 205, such as welding connection. The retainer plate 206 is installed on the transmission shaft 203 and is located mechanical filter screen 205 below through the antifriction bearing cooperation for the fixed support mechanical filter screen 205 keeps mechanical filter screen 205's positional stability, and the supporting shoe on retainer plate 206 upper portion staggers with the arch of filtering blade 209 bottom and distributes each other, does not influence each other.

The crushing device of the embodiment has simple overall structural design and lower manufacturing cost, can be directly installed and applied to a pre-separation treatment system of the tar residues, and has stronger adaptability in crushing, filtering, cleaning and deslagging of the large-scale tar residues.

The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Claims

1. A large-block tar residue crushing device in tar mixed liquid is characterized in that: the device comprises a material bearing unit (100) and a crushing unit (200), wherein the material bearing unit (100) is used for being connected with a tar residue preseparator at the upper layer, 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 a slag discharging pipe (202) is arranged at one side of the lower part of the crushing cylinder (201); 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 is 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 the crushing blades (204), and the mechanical filter screen (205) is arranged above the slag discharging pipe (202);

the transmission shaft (203) is also provided with mechanical paddles (207), and the mechanical paddles (207) are positioned below the mechanical filter screen (205); in the multi-layer crushing blades (204) on the transmission shaft (203), the number of the crushing blades (204) of each layer is different, and the number of the crushing blades (204) is gradually increased from top to bottom; the transmission shaft (203) is also provided with a filtering blade (209), the filtering blade (209) is positioned between the lowest layer of 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); the mechanical filter screen (205) is an annular filter screen surrounded by a plurality of concentric circular filter screens, and annular gaps between adjacent filter screens are filter channels; the filtering blade (209) is an inclined plane type blade with a downward tapered cross section area, and a plurality of bulges which are zigzag and distributed at intervals are arranged at the bottom of the filtering blade (209) along the length direction, and the bulges correspondingly extend into the annular gap of the mechanical filter screen (205).

2. The device for crushing massive tar residues in a tar mixed solution according to claim 1, wherein the device comprises: the lower end of the crushing unit (200) is provided with a motor connecting flange (300) which is used for being connected with a driving motor of the transmission shaft (203).

3. The device for crushing massive tar residues in a tar mixed solution according to claim 2, 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), a communicating pipe (104) used for being connected with the tar residue preseparator and a through hole (105) used for observing the inside 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).

4. The device for crushing massive tar residues in a tar mixed solution according to claim 1, wherein the device comprises: the mechanical filter screen (205) is fixedly mounted on the fixed ring (206), the fixed ring (206) comprises an outer ring body and support rods (210) which are uniformly distributed in the ring body at intervals along the circumferential direction, each support rod (210) is provided with a plurality of support blocks which extend upwards, and the support blocks are correspondingly fixedly connected with the bottom of the mechanical filter screen (205).

5. A device for breaking up large pieces of tar residues in a tar mixture according to any one of claims 1 to 4, characterized in that: the crushing blade (204) is an inclined blade with the cross-sectional area gradually decreasing from bottom to top.