CN201094905Y

CN201094905Y - Air blast type jet apparatus

Info

Publication number: CN201094905Y
Application number: CNU2007201026470U
Authority: CN
Inventors: 张宝会; 李志刚; 周立奎; 蒋国清; 常继祥; 晁世永; 戴连成
Original assignee: Tangshan Iron and Steel Co Ltd
Current assignee: Hebei Iron and Steel Co Ltd
Priority date: 2007-09-28
Filing date: 2007-09-28
Publication date: 2008-08-06
Anticipated expiration: 2017-09-28

Abstract

The utility model relates to a blast-type ejector and belongs to the technological field of coking equipment. The ejector aims to solve the problem of small quantity of absorbed air and influence on desulfurization effects in the existing ejector. In the technical proposal, the ejector comprises a shell, a jet pipe on the shell and a nozzle at the lower end of the pipe. In the improved technical proposal, the shell is provided with an added annular pipe that is provided with gas pipes in interval and a blast pipe. After the improvement, the assistant blast is added to the existing self-absorption function, excellently eliminating the deficiency of small quantity of absorbed air in the ejector. The large-scale increase of input air can achieve the excellent regeneration of desulfurized mother liquor in a regeneration groove and solve the problems that part of elementary substance, sulfur, can not float on the surface of the regeneration groove in the form of sulfur bubbles, which affects the effective extraction and elimination of sulfur. The ejector can be installed and used as an ejector in the oxidation, self-absorption and regeneration groove that is used for desulfurization by coking enterprises.

Description

The blowing-type injector

Technical field

The utility model relates to the injector in the oxidation self-priming regeneration tank in the coal chemical enterprise desulphurization system, belongs to the coker technical field.

Background technology

The coal chemical enterprise wet desulphurization is produced and mainly is divided into gas washing, mother liquor regeneration, the sulphur foam is handled three big modes, wherein mother liquor regeneration mode effect is best, this mode adopts injection self-priming mode to carry out mother liquor regeneration, injector is the jet pipe of arranging on the case of regeneration tank top and the case, the jet pipe lower end connects nozzle, sulphur-containing mother solution with certain pressure is through jet pipe, when injecting regeneration tank, nozzle forms suction at the nozzle place, air is sucked automatically by the suction hole on the tube wall of nozzle top, with inject regeneration tank in the lump after sulphur-containing mother solution mixes, redox reaction takes place in regeneration tank, produces elemental sulfur and ammoniacal liquor.Elemental sulfur is suspended in liquid surface in the regeneration tank with the form of sulphur foam, suspension liquid is transported to scrubbing tower after washing removes the sulphur foam and under the liquid level regulator effect, the sulphur foam that is suspended in liquid surface in the regeneration tank is extracted, enlarged to regeneration tank, thereby reach the purpose of elemental sulfur in the liquid, and make mother liquor obtain regeneration.This kind injector, the air self-suction amount is little, and desulphurization mother solution can not well be regenerated in groove, and the part elemental sulfur can not be suspended in the surface of regeneration tank with the form of sulphur foam, but is contained in the liquid, has influence on the extraction of sulphur; Simultaneously, because mother liquor regeneration is bad, liquid is when entering injector, sulphur foam in the liquid just can the bridging phenomenon occur at the nozzle place of injector, and nozzle area is diminished gradually, causes spray nozzle clogging, nozzle cleaning difficulty after the obstruction in the course of time, has been aggravated the influence that air is sucked.In sum, existing injector air imbibed quantity is to cause desulphurization mother solution muddiness, degradation for a short time, and the key point of self-priming regenerative sulfur binding clean result is sprayed in influence, should seek solution route and way at this problem.

Summary of the invention

The purpose of this utility model provides a kind of blowing-type injector, and is little to solve existing injector air capacity suction, the affected problem of desulfurized effect.

The alleged problem of the utility model realizes with following technical scheme:

A kind of blowing-type injector, case is arranged in the formation, be arranged on the case jet pipe and the pipe lower end nozzle, its improvement is, sets up ring pipe on case, the appendix that is intervally arranged on the ring pipe also has blast pipe on the ring pipe.

Above-mentioned blowing-type injector, described appendix is intervally arranged along ring inboard, the ring outside of ring pipe, and each appendix upper end is connected with ring pipe by short tube.

Above-mentioned blowing-type injector, described appendix lower end is the taper convergent nozzle, on the tube wall of taper convergent nozzle top small de-air hole is arranged.

Above-mentioned blowing-type injector, the upper end of described each appendix has stop valve.

Above-mentioned blowing-type injector, the appendix that described ring medial and lateral are intervally arranged, its length is by one is long and the other is short interphase distribution.

Above-mentioned blowing-type injector, the caliber of described ring pipe, appendix are respectively 40～60,20～30 millimeters, and described small de-air hole is 6～8 row, whenever classifies 6～10 as, and the aperture is 4～8 millimeters, and pitch of holes is 8～15 millimeters.

Above-mentioned blowing-type injector is set up dividing plate in described case, described each appendix is arranged in the jack that coupling is provided with on the dividing plate, and there is the fixedly pipe clamp of appendix at the jack place, and dividing plate is positioned at described small de-air hole top.

The utlity model has following characteristics:

1. owing under the prerequisite that keeps existing self-suction function, set up auxiliary air blast again, so can eliminate the existing little use defective of injector air imbibed quantity well, can desulphurization mother solution well be regenerated in regeneration tank because of the significantly increase of air input, solved the part elemental sulfur and can not be suspended in the surface of regeneration tank with the form of sulphur foam, but be contained in the liquid, problem is removed in the effective extraction that has influence on sulphur;

2. the auxiliary drum elegance of setting up adds the form of medial and lateral appendix with ring pipe, ingenious combination has utilized the structure space of existing injector, be easy to obtain the desirable blow rate required, can be installed on the existing regeneration tank easily according to the concrete arrangement form and the quantity of appendix;

3. the appendix lower end is the taper convergent nozzle and has small de-air hole, helps strengthening blasting jet dynamics and uniformity;

4. the appendix upper end is provided with stop valve, has made things convenient for the adjusting control of the blow rate required;

The utility model is suitable to be installed and used with the injector in the oxidation self-priming regeneration tank as the coal chemical enterprise desulfurization.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the schematic top plan view of Fig. 1.

The parts label is respectively in the accompanying drawing: 1-case, 2-jet pipe, 3-nozzle, 4-regeneration tank, 5-ring pipe, 6-appendix, 7-blast pipe, 8-short tube, 9-taper convergent nozzle, 10-small de-air hole, 11-stop valve, 12-dividing plate, 13-pipe clamp.

The specific embodiment

Consult accompanying drawing.For the clear improvement part that shows, only shown ring pipe 5 and the appendix 6 set up among Fig. 1, saved original jet pipe 2, jet pipe 2 shows in Fig. 2.As shown in Figure 2, in the existing injector, jet pipe 2 is arranged on the case 1, and its upper end extends to that case is connected with the sulfur-containing liquid carrier pipe outward, the liquid level in the nozzle 3 corresponding regeneration tanks 4 of its lower end.

Still consult accompanying drawing.Of the present utility modelly mainly be improved to, set up the ring pipe 5 and the coupled logical appendix 6 that is intervally arranged thereon at place, case 1 top.Also have blast pipe 7 on the body of ring pipe 5, the compression of the import of blast pipe 7 and air and etc. air supply system be connected.Liquid level in the corresponding regeneration tank 4 in each appendix 6 lower end.

Still consult accompanying drawing.Appendix 6 can be intervally arranged along ring inboard, the ring outside of ring pipe 5.In the illustrated embodiment, ring clear width 4 appendixs of arranging, the ring outside root appendix 6 that is intervally arranged, the upper end of each appendix 6 is connected with ring pipe 5 by short tube 8 respectively.

Still consult accompanying drawing.The lower end of each appendix 6 is a taper convergent nozzle 9, sets up small de-air hole 10 on the tube wall of each taper convergent nozzle 9 top.But the small de-air hole multiple row is intervally arranged.

Consult Fig. 1.The upper end of each appendix 6 has stop valve 11 respectively, and the length of the appendix 6 that ring pipe 5 medial and lateral are intervally arranged can be by one is long and the other is short interphase distribution.

In the illustrated embodiment, the caliber of ring pipe 5, appendix 6 is respectively 50,25 millimeters, and steam vent 10 is 4 row, 10 of every row, 6 millimeters in aperture, 12 millimeters of pitchs of holes.Long tube in the appendix 6 is that 7850 millimeters, short tube are 7550 millimeters.

Still consult Fig. 1.After setting up dividing plate 12 in the case 1, each appendix 6 is arranged in the jack that coupling is provided with on the dividing plate, and is fixed on the dividing plate 12 by the pipe clamp 13 at jack place.

Claims

1. blowing-type injector, case [1] is arranged in the formation, be arranged on the case jet pipe [2] and the pipe lower end nozzle [3], it is characterized in that, on case [1], set up ring pipe [5], the appendix [6] that is intervally arranged on the ring pipe [5] also has blast pipe [7] on the ring pipe [5].

2. blowing-type injector according to claim 1 is characterized in that, described appendix [6] is intervally arranged along ring inboard, the ring outside of ring pipe [5], and each appendix upper end is connected with ring pipe [5] by short tube [8].

3. blowing-type injector according to claim 2 is characterized in that, described appendix [6] lower end is taper convergent nozzle [9], on the tube wall of taper convergent nozzle top small de-air hole [10] is arranged.

4. blowing-type injector according to claim 3 is characterized in that, the upper end of described each appendix [6] has stop valve [11].

5. blowing-type injector according to claim 4 is characterized in that, the appendix [6] that described ring medial and lateral are intervally arranged, and its length is by one is long and the other is short interphase distribution.

6. according to claim 3,4 or 5 described blowing-type injectors, it is characterized in that the caliber of described ring pipe [5], appendix [6] is respectively 40～60,20～30 millimeters, described small de-air hole [10] is 6～8 row, whenever classify 6～10 as, the aperture is 4～8 millimeters, and pitch of holes is 8～15 millimeters.

7. blowing-type injector according to claim 6, it is characterized in that, set up dividing plate [12] in described case [1], described each appendix [6] is arranged in the jack that coupling is provided with on the dividing plate, there is the fixedly pipe clamp of appendix [13] at the jack place, and dividing plate [12] is positioned at described small de-air hole [10] top.