CN215480757U

CN215480757U - Packing layer for mechanical water removal of blast furnace gas

Info

Publication number: CN215480757U
Application number: CN202121060756.7U
Authority: CN
Inventors: 胡学羽; 潘宏; 周亚军
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2022-01-11
Anticipated expiration: 2031-05-18

Abstract

The utility model relates to a packing layer for removing mechanical water of blast furnace gas, which is arranged in a vertical tower, wherein the packing layer comprises a plurality of supports, a support main beam, a support grid, regular packing, a gland grid and a plurality of pressing strips, the supports are welded on the inner wall of the tower body of the vertical tower, are symmetrically arranged along the central line of the tower, and all the support surfaces keep the same horizontal elevation, the support main beam is fixed on the supports, the support grid is laid on the support main beam, the regular packing is fixedly placed on the support grid, the gland grid is laid on the regular packing, and the pressing strips are fixed above the gland grid plate and used for limiting the gland grid plate in the vertical direction. The utility model has the advantages of simple structure, convenient installation and maintenance, high dehydration efficiency, small resistance loss, good anti-blocking performance and the like.

Description

Packing layer for mechanical water removal of blast furnace gas

Technical Field

The utility model belongs to the technical field of blast furnace production, and particularly relates to a packing layer for mechanical water removal of blast furnace gas.

Background

The blast furnace gas of the iron and steel metallurgical enterprise has the characteristics of large generation amount, high dust content, more harmful gas components and the like. At present, part of the process technology for removing dust or acid is mainly wet process, and a large amount of water is sprayed to coal gas in the process. The method inevitably causes a large amount of mechanical water contained in the outlet gas to exceed the standard, the sensible heat of the gas is seriously reduced, and the combustion temperature of the gas is also reduced, which brings great adverse effect to downstream users and is great waste of energy.

Disclosure of Invention

The utility model aims to provide a packing layer for mechanical water removal of blast furnace gas, so as to solve the problems. Therefore, the utility model adopts the following specific technical scheme:

the utility model provides a packing layer for desorption of blast furnace gas machinery water, the packing layer is installed in vertical tower, wherein, the packing layer includes a plurality of supports, supports girder, support grid, regular packing, gland grid and many layering, the support welding is in on the tower body inner wall of vertical tower, along tower central line symmetrical arrangement and all seat faces keep same horizontal elevation, it fixes to support the girder on the support, the support grid is laid on supporting the girder, regular packing is fixed to be placed on the support grid, the gland grid is laid on the regular packing, the layering is fixed the top of gland grid board is used for right the gland grid board carries out the vertical direction spacing.

Further, the support main beam is made of I-shaped steel, and is fixedly connected with the support through bolts.

Further, the support grid is composed of a plurality of bulk grid plates, the laying direction of the bulk grid plates is perpendicular to the support main beams, and the length of the bulk grid plates is equal to the center line spacing of the support main beams.

Furthermore, a plurality of bulk grid plates are connected in series in the transverse direction by fastening connecting rods, and two ends of each bulk grid plate are fixed by fastening bolts; and the longitudinal direction is directly fixed and connected by adopting bolts.

Furthermore, the grid plates of the gland grating are arranged in a staggered mode, the transverse side faces of the grid plates are provided with openings, the grid plates are transversely connected in series through fastening connecting rods, and the two ends of each grid plate are fixed through fastening bolts.

Furthermore, the two ends of the fastening connecting rod are rigid studs, and the middle of the fastening connecting rod is a flexible steel rope.

Furthermore, the packing layer still includes multiunit gusset and a lock ring, multiunit gusset circumference welding is in on the tower body inner wall, the lock ring is fixed on the gusset and its top surface elevation with support girder top surface elevation the same, the support grid is close to tower body inner wall department and lays on the lock ring.

Further, the pressing strip is made of angle steel.

Furthermore, the two ends of the pressing bar are connected with the connecting plate welded on the inner wall of the tower body through bolts.

Further, the structured packing is formed by splicing loose packing.

By adopting the technical scheme, the utility model has the beneficial effects that: the utility model has the advantages of simple structure, convenient installation and maintenance, high dehydration efficiency, small resistance loss, good anti-blocking performance and the like, and can be suitable for a blast furnace gas wet dust removal system or tower equipment for deacidifying the gas by adopting an alkali washing method and spraying water to cool the gas.

Drawings

To further illustrate the various embodiments, the utility model provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

FIG. 1 is a schematic front view of the overall assembly structure of the packing layer for mechanical water removal of blast furnace gas according to the present invention;

FIG. 2 is a schematic view of the mounting structure of the support and support main beams of the packing layer shown in FIG. 1;

FIG. 3 is a schematic view of the installation structure of the rib plates and the support rings of the packing layer shown in FIG. 1;

FIG. 4 is a schematic view of the mounting arrangement of the support grid of the packing layer shown in FIG. 1;

FIG. 5 is a schematic view of the mounting connections of the support grid of the packing layer shown in FIG. 1;

FIG. 6 is a schematic view of the installed connection of the capping grid of the packing layer shown in FIG. 1;

fig. 7 is a schematic view showing an installation structure of the bead of the packing layer shown in fig. 1.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 7, a packing layer for mechanical water removal of blast furnace gas, which is installed in a vertical tower 100, is described for removing mechanical water contained in blast furnace gas. The core component of the packing layer is structured packing, and when blast furnace gas flows in a packing zigzag channel, the collision probability of mechanical water particles is increased, so that the mechanical water particles are removed.

Specifically, as shown in fig. 1, the packing layer may include a plurality of support bases 1, a plurality of support main beams 2, a support grid 3, structured packing 4, a gland grid 5, a plurality of beads 6, and the like. The support 1 is welded on the inner wall of the tower body of the vertical tower and is used as a packing layer bearing foundation member. The supports 1 are symmetrically arranged along the center line of the tower, and the number and the form of the supports are designed according to actual requirements. The seat surfaces of all the seats 1 are kept at the same level. The support 1 can be formed by welding two side plates and a top plate. An oval bolt hole is formed in the top surface of the support 1, so that the main beam 2 is convenient to mount and support.

As shown in fig. 1 and 2, a support main beam 2 is fixed to a pedestal 1. Specifically, the support main beam 2 is made of i-steel, and an elliptical bolt hole corresponding to the elliptical bolt hole (also called a waist hole) of the support 1 is formed in the support main beam, so that the support main beam 2 and the support 1 can be fixedly connected through bolts.

As shown in fig. 1 and 3, a plurality of groups of rib plates 7 are welded on the inner wall of the tower body of the vertical tower 100 in the circumferential direction, a support ring 8 is fixed on the rib plates, and the elevation of the top surface of the support ring 8 is the same as that of the top surface of the main support beam 2, so that the support grid 3 can be laid on the support ring 8 and the main support beam 2. The support ring 8 can be fixed on the rib plate 7 through bolts.

As shown in fig. 1, 4 and 5, the support grid 3 may be assembled from a plurality of bulk grid plates 31. Specifically, the grating plates 31 have openings on both the lateral and longitudinal sides, and the grating intervals and the opening pitch are calculated and designed according to the actual engineering requirements. The grid plate 31 is laid between the two support girders 2, and is arranged perpendicular (orthogonal) to the support girders 2. The ends of the grid plates 31 are flush. The grid plate 31 is laid on the support ring 8 near the inner wall of the tower body. The plurality of bulk grid plates 31 are transversely connected in series by fastening connecting rods 32, and two ends of the bulk grid plates are fixed by fastening bolts. The fastening connecting rod 32 is a special metal piece, and both ends thereof are rigid studs and the middle thereof is a flexible steel rope. The grid plates 31 are directly fixed and connected longitudinally by bolts. The grid plates 31, after being connected in series transversely and fixed longitudinally, form a whole (support grid 3) for supporting the structured packing 4 above.

As shown in fig. 1, the structured packing 4 is fixedly placed on the support grid 3. In order to facilitate on-site installation and maintenance, the structured packing 4 is a scattered part and is formed into a whole in an on-site assembly mode. The regular packing 4 is a mature product, and can be selected in specific form and specification according to the actual engineering situation.

As shown in fig. 1 and 6, a gland grating 5 is laid on the structured packing 4 to ensure the stability of the packing layer upon gas impact. The gland grating 5 is different from the support grating 3. In particular, the spacing of the gland grating 5 is slightly larger. The grid plates 51 of the gland grid 5 are arranged in a staggered manner and are provided with openings on the lateral sides. The grating plates 51 are connected in series by fastening connecting rods 52 in the transverse direction, and the two ends are fixed by fastening bolts. The fastening connection rods 52 are identical to the fastening connection rods 32 of the support grid 3.

As shown in fig. 1 and 7, the pressing bar 6 is fixed above the gland grating plate 5 and used for limiting the gland grating plate 5 in the vertical direction. The bead 6 may be made of angle steel. Considering the convenience of maintenance, the overlong and overweight pressing strip 6 adopts a multi-section configuration and bolt connection mode. Two ends of the pressing bar 6 are connected with a connecting plate 10 welded on the inner wall of the tower body through bolts.

The packing layer of the utility model can be applied to various working conditions, and has higher dehydration efficiency for blast furnace gas after wet dust removal or alkali cleaning spraying. Meanwhile, because the blast furnace gas has the characteristics of low pressure and dust, the packing layer has the advantages of small resistance loss, good anti-blocking performance and the like.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a packing layer for desorption of blast furnace gas machinery water, the packing layer is installed in vertical tower, its characterized in that: the packing layer includes a plurality of supports, supports the girder, supports grid, regular packing, gland grid and many layering, the support welding is in on the tower body inner wall of vertical tower, along tower central line symmetrical arrangement and all seat faces keep same horizontal elevation, it fixes to support the girder on the support, it lays to support the grid on the support girder, regular packing is fixed to be placed support on the grid, the gland grid is laid regular packing is last, the layering is fixed the top of gland grid board is used for right the gland grid board carries out the vertical direction spacing.

2. The packing layer of claim 1, wherein: the supporting main beam is made of I-shaped steel and fixedly connected with the support through bolts.

3. The packing layer of claim 2, wherein: the supporting grid is composed of a plurality of bulk grid plates, the laying direction of the supporting grid plates is perpendicular to the supporting main beams, and the length of the supporting grid plates is equal to the center line distance of the supporting main beams.

4. The packing layer of claim 3, wherein: the plurality of bulk grid plates are connected in series in the transverse direction by fastening connecting rods, and two ends of the bulk grid plates are fixed by fastening bolts; and the longitudinal direction is directly fixed and connected by adopting bolts.

5. The packing layer of claim 1, wherein: the gland grating is characterized in that all grating plates are arranged in a staggered mode, and the transverse side faces of the grating plates are provided with openings, so that all the grating plates are transversely connected in series through fastening connecting rods, and the two ends of each grating plate are fixed through fastening bolts.

6. The packing layer of claim 4 or 5, wherein: the two ends of the fastening connecting rod are rigid studs, and the middle of the fastening connecting rod is a flexible steel rope.

7. The packing layer of claim 1, wherein: the packing layer further comprises a plurality of groups of rib plates and a support ring, the plurality of groups of rib plates are welded on the inner wall of the tower body in the circumferential direction, the support ring is fixed on the rib plates, the top surface elevation of the support ring is the same as that of the support main beam, and the support grid is laid on the support ring close to the inner wall of the tower body.

8. The packing layer of claim 1, wherein: the pressing strip is made of angle steel.

9. The packing layer of claim 1, wherein: and the two ends of the pressing bar are connected with the connecting plate welded on the inner wall of the tower body through bolts.

10. The packing layer of claim 1, wherein: the regular packing is formed by splicing bulk packing.