CN216825293U

CN216825293U - Dry tail gas processing apparatus of sediment white carbon black

Info

Publication number: CN216825293U
Application number: CN202220133709.9U
Authority: CN
Inventors: 申志忠; 张清川; 梁智彪; 陈志勋; 韩怀见; 邵由俊
Original assignee: Jiangxi Blackcat Carbon Black Co ltd
Current assignee: Jiangxi Blackcat Carbon Black Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-06-28
Anticipated expiration: 2032-01-19

Abstract

The application relates to a precipitated white carbon black drying tail gas treatment device, which comprises a drying tower, a drying bag filter, a draught fan and a drying tail gas discharge chimney; the top of the drying tower is provided with an air inlet, and the bottom of the drying tower is connected with the drying bag filter through a pipeline; the dry bag filter comprises a vibrator, a filter cloth bag, a connecting plate and a differential pressure sensor; the top of the dry tail gas emission chimney is provided with a white elimination device, and the white elimination device comprises an upper top cover, a baffle plate, a shaft sleeve, a lower disc, a baffle plate and a short connecting sleeve. The utility model discloses can effectively reduce the content of white carbon black powder in the dry tail gas to retrieve the comdenstion water, avoid causing the influence to all ring edge borders, the water economy resource simultaneously.

Description

Dry tail gas processing apparatus of sediment white carbon black

Technical Field

The application relates to the technical field of white carbon black tail gas treatment, in particular to a precipitated white carbon black drying tail gas treatment device.

Background

At present, the drying modes of precipitated silica are generally divided into two types: one is pressure spray drying and the other is centrifugal spray drying. Although the two drying spray forms are different, the drying principle is the same, and the white carbon black thick slurry with the water content of about 22% is sprayed into a drying tower and exchanges heat with high-temperature hot air in the drying tower, so that the water in the white carbon black thick slurry is instantaneously evaporated into water vapor to be discharged out of the tower, and the water vapor is discharged out of the room through a drying tail gas chimney.

The dry tail gas is steam with water, is discharged outdoors to be expected to be a snow-white smoke mass, is rapidly condensed into water to fall after being contacted with air at normal temperature, so that part of condensed water can be scattered on an outdoor road to cause water accumulation all the year round on the outdoor road, and can also cause road icing in cold winter to influence the safety of pedestrians. The condensed water on the ground cannot be recycled, so that water resource waste is caused.

Disclosure of Invention

An object of the utility model is to provide a deposit white carbon black dry tail gas processing apparatus, can effectively reduce the content of white carbon black powder in the dry tail gas to retrieve the comdenstion water, avoid causing the influence to all ring edge borders, the water economy resource simultaneously.

The utility model adopts the technical proposal that: a precipitated white carbon black drying tail gas treatment device comprises a drying tower, a drying bag filter, an induced draft fan and a drying tail gas discharge chimney; the top of the drying tower is provided with an air inlet, and the bottom of the drying tower is connected with the drying bag filter through a pipeline; the dry bag filter comprises a vibrator, a filter cloth bag, a connecting plate and a differential pressure sensor; a connecting plate is arranged in the drying bag filter, the filter cloth bag array is arranged at the bottom of the connecting plate, and the vibrator is arranged at the top of the connecting plate; the interior of the drying bag filter is divided into a powder collecting chamber and a tail gas discharging chamber through a connecting plate and a filtering cloth bag; one end of the differential pressure sensor extends into the powder collecting chamber, and the other end of the differential pressure sensor extends into the tail gas discharging chamber and is electrically connected with the vibrator; the air inlet end of the induced draft fan is connected with the tail gas discharge chamber, and the air outlet end of the induced draft fan is connected with the dry tail gas discharge chimney; the top of the dry tail gas emission chimney is provided with a white elimination device, and the white elimination device comprises an upper top cover, a baffle plate, a shaft sleeve, a lower disc, a baffle plate and a short connecting sleeve; the upper top cover and the lower disc are both in the shape of a pot cap; the short connecting sleeve is fixedly connected with the dry tail gas emission chimney, the upper top cover and the lower disc are arranged on the short connecting sleeve, the shaft sleeve is arranged between the upper top cover and the lower disc, and the baffle plate is obliquely arranged on the shaft sleeve and surrounds the short connecting sleeve; the shielding plate is arc-shaped, has an L-shaped section and is connected with the upper top cover.

Further, the central angle corresponding to the shielding plate is 135-150 degrees.

Further, the included angle between the baffle plate and the vertical surface is 17-23 degrees.

Furthermore, at least two water guide convex grooves are uniformly arranged on the shielding plate at intervals.

Furthermore, the array row number of the filtering cloth bag is 20-25 rows, and the array column number is 5-10 columns.

The beneficial effects of the utility model reside in that:

(1) the filter cloth bags are used for separating the white carbon black powder from the dry tail gas with water vapor, and the contact area between the filter cloth bags and the white carbon black tail gas can be enlarged by increasing the number of the filter cloth bags, so that the filtering efficiency is improved; detecting the air pressure difference at two sides of the filter cloth bag through a pressure difference controller, and starting a vibrator to vibrate the filter cloth bag when the pressure difference at two sides of the filter cloth bag is greater than a preset value so as to remove the attached white carbon black powder on the filter cloth bag;

(2) the dry tail gas with the water vapor is blocked by the upper top cover in the upward discharging process, the discharging direction is changed, the dry tail gas is discharged along the oblique lower direction, the baffle plate is pushed to rotate around the short connecting sleeve, the contact cooling time of the water vapor and the natural air is prolonged, the water vapor is rapidly condensed into condensed water, and the white fading phenomenon is reduced; compared with the traditional demisting and foam-removing device, the utility model has the advantages of small system resistance, good energy-saving effect and safe and reliable operation;

(3) the shielding plate can prevent the comdenstion water from falling on outdoor road, avoids outdoor road ponding throughout the year to cause the wet and smooth, can also carry out recycle to the comdenstion water via the drain pipe with comdenstion water conservancy diversion to the water drainage tank of eave simultaneously, effectively solves the problem of water waste.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a white elimination device according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a whitening apparatus according to an embodiment of the present invention;

fig. 4 is a schematic view of a usage status of the whitening apparatus according to the embodiment of the present invention.

The reference signs explain: 1-drying tower, 2-drying bag filter, 3-induced draft fan, 4-drying tail gas discharge chimney, 5-gas inlet, 6-vibrator, 7-filtering cloth bag, 8-connecting plate, 9-differential pressure sensor, 10-powder collecting chamber, 11-tail gas discharge chamber, 12-upper top cover, 13-baffle plate, 14-shaft sleeve, 15-lower disk, 16-baffle plate, 17-short connecting sleeve, 18-water guide convex groove, 19-eave, 20-eave drainage groove, 21-drainage pipe and 22-white removing device.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and the present invention is not limited to the specific embodiments disclosed below.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and claims of this patent application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

As shown in fig. 1 to 4, a precipitated silica dry tail gas treatment device comprises a drying tower 1, a drying bag filter 2, an induced draft fan 3 and a dry tail gas discharge chimney 4; the top of the drying tower 1 is provided with an air inlet 5, and the bottom of the drying tower is connected with the drying bag filter 2 through a pipeline; the drying bag filter 2 comprises a vibrator 6, a filtering cloth bag 7, a connecting plate 8 and a differential pressure sensor 9; a connecting plate 8 is arranged in the drying bag filter 2, the filter cloth bags 7 are arranged at the bottom of the connecting plate 8 in an array mode, and the vibrator 6 is arranged at the top of the connecting plate 8; the interior of the drying bag filter 2 is divided into a powder collecting chamber 10 and a tail gas discharging chamber 11 by a connecting plate 8 and a filtering cloth bag 7; one end of the differential pressure sensor 9 extends into the powder collecting chamber 10, and the other end of the differential pressure sensor extends into the tail gas discharge chamber 11 and is electrically connected with the vibrator 6; the air inlet end of the draught fan 3 is connected with the tail gas discharge chamber 11, and the air outlet end of the draught fan is connected with the dry tail gas discharge chimney 4; the top of the dry tail gas emission chimney 4 is provided with a white elimination device 22, and the white elimination device 22 comprises an upper top cover 12, a baffle plate 13, a shaft sleeve 14, a lower disc 15, a baffle plate 16 and a short connecting sleeve 17; the upper top cover 12 and the lower disc 15 are both in the shape of a pot cap; the short connecting sleeve 17 is fixedly connected with the dry tail gas emission chimney 4, the upper top cover 12 and the lower disk 15 are arranged on the short connecting sleeve 17, the shaft sleeve 14 is arranged between the upper top cover 12 and the lower disk 15, and the baffle plate 13 is obliquely arranged on the shaft sleeve 14 and surrounds the short connecting sleeve 17; the shielding plate 16 is arc-shaped, has an L-shaped cross section, and is connected to the upper top cover 12.

The white carbon black thick slurry from the production line enters the drying tower 1 after being atomized by a pressure atomizing device or a centrifugal atomizing device, realizes heat exchange with hot air flowing from top to bottom in the drying tower 1, and realizes evaporation drying at the bottom of the drying tower 1 to form mixed tail gas containing materials. The mixed tail gas is sucked into the drying bag filter 2 under the action of the attraction of the draught fan 3, the gas-solid separation is realized through the filter cloth bag 7, the separated powdery solid enters a packaging system as a product, and the separated dry tail gas with water vapor enters the dry tail gas discharge chimney 4 and is discharged outdoors. In the process of filtering the mixed tail gas, part of the powder is attached to the filter cloth bag 7, the filtering capacity of the filter cloth bag 7 is gradually reduced along with the time, and the air pressure difference between the inside and the outside of the filter cloth bag 7 is increased. Therefore the embodiment of the utility model provides an adopt differential pressure sensor 9 to detect the inside and outside atmospheric pressure difference of filtration sack 7, differential pressure sensor 9 one end stretches into powder collection room 10, and the other end stretches into exhaust emission room 11, and with 6 electric connection of vibrator, when the pressure differential of powder collection room 10 and exhaust emission room 11 is greater than the default, start vibrator 6 and vibrate filtration sack 7, detach and filter the adnexed white carbon black powder on the sack 7, prolong the life of filtration sack 7 to maintain the filter capacity of drying bag filter 2. When the number of the filter cloth bags 7 is small, the internal space of the dry bag filter 2 is not fully utilized, and the filtering efficiency is low; when the number of the filter cloth bags 7 is large, the arrangement among the filter cloth bags 7 is too tight, so that the area of the filter cloth bags 7 effectively contacting with the mixed gas is reduced, the filtering efficiency cannot be effectively improved, the production cost can be increased, and the resource waste is caused. Preferably, the array row number of the filtering cloth bag 7 is 20-25 rows, and the array column number is 5-10 columns, so that the contact area between the filtering cloth bag 7 and the mixed tail gas can be increased, and the filtering efficiency is improved; but also can reasonably utilize space, control production cost and avoid resource waste.

The dry tail gas with water vapor is blocked by the upper top cover 12 in the upward discharge process, and the discharge direction is changed to discharge along the oblique lower direction. Because the baffle plate 13 is obliquely arranged, the drying tail gas with the water vapor can push the baffle plate 13 to rotate around the short connecting sleeve 17 in the discharging process, so that the contact cooling time of the water vapor and natural air is prolonged, the water vapor is rapidly condensed into condensed water, and the white fading phenomenon is reduced; compare with traditional defogging foam device, the utility model discloses system resistance is little, and is energy-conserving effectual, operation safe and reliable. The embodiment of the utility model provides an in, baffling board 13 is 17 ~23 with the contained angle of vertical face, can enough make the dry tail gas of taking steam produce sufficient thrust to baffling board 13 in the emission process, can prevent baffling board 13 rotational speed too fast again, makes the comdenstion water splash to outdoor road. When the included angle between the baffle plate 13 and the vertical surface is less than 17 degrees, the rotating speed of the baffle plate 13 is low, the contact cooling time of water vapor and natural air is short, and the condensation effect is poor; when the included angle between the baffle plate 13 and the vertical surface is larger than 23 degrees, the rotating speed of the baffle plate 13 is too large, the outward splashing angle of the condensed water is increased, and the surface water accumulation is easily generated.

When the device is used, the shielding plate 16 is arranged towards the direction of an outdoor road, and in the rotating process of the baffle plate 13, condensed water is discharged from the side surface of the white eliminating device 22, namely an exhaust port formed between the upper top cover 12, the lower disc 15 and two adjacent baffle plates 13. The condensed water discharged toward the eave 19 side flows into the eave drainage groove 20 along the eave 19, and is recycled through the drainage pipe 21; the comdenstion water of discharging towards the road side then can be blocked by shielding plate 16, and shielding plate 16's cross section is "L" type, can enough prevent that the comdenstion water from falling on outdoor road, avoids outdoor road ponding throughout the year to cause the wet and smooth, can also lead to the comdenstion water to eave water drainage tank 20, fully realizes the recycle of comdenstion water. The embodiment of the utility model provides an in, the central angle that shielding plate 16 corresponds is 135 ~150 for curved shielding plate 16 shelter from the scope and can have effectively to cover the roadside of the horse, and furthest prevents that the comdenstion water from splashing to the roadside. In addition, the shielding plate 16 is further provided with at least two water guiding convex grooves 18 at intervals, and the water guiding convex grooves 18 can guide condensed water into the eave drainage channel 20 quickly, so that water resources are recycled, and water resources are saved effectively.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The precipitated white carbon black drying tail gas treatment device is characterized by comprising a drying tower, a drying bag filter, a draught fan and a drying tail gas discharge chimney; the top of the drying tower is provided with an air inlet, and the bottom of the drying tower is connected with the drying bag filter through a pipeline; the dry bag filter comprises a vibrator, a filter cloth bag, a connecting plate and a differential pressure sensor; a connecting plate is arranged in the drying bag filter, the filter cloth bag array is arranged at the bottom of the connecting plate, and the vibrator is arranged at the top of the connecting plate; the interior of the drying bag filter is divided into a powder collecting chamber and a tail gas discharging chamber through a connecting plate and a filtering cloth bag; one end of the differential pressure sensor extends into the powder collecting chamber, and the other end of the differential pressure sensor extends into the tail gas discharging chamber and is electrically connected with the vibrator; the air inlet end of the induced draft fan is connected with the tail gas discharge chamber, and the air outlet end of the induced draft fan is connected with the dry tail gas discharge chimney; the top of the dry tail gas emission chimney is provided with a white elimination device, and the white elimination device comprises an upper top cover, a baffle plate, a shaft sleeve, a lower disc, a baffle plate and a short connecting sleeve; the upper top cover and the lower disc are both in the shape of a pot cap; the short connecting sleeve is fixedly connected with the dry tail gas emission chimney, the upper top cover and the lower disc are arranged on the short connecting sleeve, the shaft sleeve is arranged between the upper top cover and the lower disc, and the baffle plate is obliquely arranged on the shaft sleeve and surrounds the short connecting sleeve; the shielding plate is arc-shaped, has an L-shaped section and is connected with the upper top cover.

2. The device for treating the dried tail gas of precipitated silica white according to claim 1, wherein the shielding plate has a corresponding central angle of 135-150 °.

3. The device for treating the precipitated silica dry tail gas according to claim 1, wherein an included angle between the baffle plate and a vertical surface is 17-23 °.

4. The device for treating the dried tail gas of precipitated silica white according to claim 1, wherein the shielding plate is further provided with at least two water guide convex grooves at regular intervals.

5. The device for treating the dried tail gas of precipitated silica white according to claim 1, wherein the number of rows of the filter cloth bag array is 20-25 rows, and the number of columns of the filter cloth bag array is 5-10 columns.