Gypsum slurry distribution box for limestone-gypsum desulfurization

Abstract

The utility model relates to a gypsum slurry distribution box for limestone-gypsum desulfurization, which comprises a distribution box body and a distribution pipe group, the technical key points are as follows: the distribution pipe group comprises a siphon water suction pipe which is vertically arranged in the distribution box body and has a downward inlet, a siphon breaking pipe which is parallel to the siphon water suction pipe, and a U-shaped water storage pipe which is positioned on the outer side of the distribution box body and is communicated with the upper ends of the siphon water suction pipe and the siphon breaking pipe; the right-angle siphon water outlet pipe is communicated with the pipe section, connected with the siphon breaking pipe, of the U-shaped water storage pipe, the inlet of the siphon breaking pipe is higher than the inlet of the siphon water suction pipe, the horizontal section of the U bottom of the U-shaped water storage pipe is lower than the bottom surface of the distribution box body, and the pipe bottom of the horizontal section of the siphon water outlet pipe is as high as the inlet of the siphon breaking pipe. The utility model solves the problems that the distribution pipeline has a stagnant water section and slurry deposits in the pipeline, avoids the blockage of the pipeline, and has the advantages of flexibility in use, good stability and guarantee of production continuity compared with the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to limestone - gypsum method desulfurization equipment technical field, concretely relates to a kind of gypsum slurry distribution box for limestone - gypsum method desulfurization, widely used in power, heating and other industries desulfurization system gypsum dehydration process, especially applicable to the wet desulfurization system of more than two sets of vacuum belt dehydration machine of multiple furnace, multiple absorption tower arrangement. BACKGROUND

[0002] With the increasingly stringent requirement of environmental protection emission concentration, the application of wet desulfurization is more and more widely. The gypsum dehydration link of limestone-gypsum desulfurization system is an important link in the desulfurization system, and the blockage caused by the deposition and crystallization of slurry in the pipeline is a big problem affecting the stable operation of the system. The desulfurization system generally sets standby vacuum belt dehydration machine or gypsum cyclone and gypsum slurry distribution box, among which, the reasonable design of the box body and pipeline of the gypsum slurry distribution box is the most important to ensure the stable operation of the system.

[0003] Under normal circumstances, the box body of the gypsum slurry distribution box is provided with multiple pipe openings corresponding to multiple dehydration equipment, and the closure is controlled by using pipeline valves. However, there are the following problems: when the standby pipe opening is not used, there is a "dead water" section in the pipeline between the pipe opening and the valve, the slurry is easy to deposit, and crystallization is caused, resulting in pipeline blockage, or the valve cannot be opened when the pipe opening is switched. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of gypsum slurry distribution box for limestone-gypsum desulfurization with simple structure and reliable use, solve the problem of "dead water" section in distribution pipeline, slurry deposition in pipeline, avoid pipeline blockage, compared with prior art, flexible use, good stability, ensure production continuity.

[0005] The technical scheme of the utility model is:

[0006] A kind of gypsum slurry distribution box for limestone-gypsum desulfurization, including distribution box body and distribution pipe group, its technical key points are: the distribution pipe group includes siphon water suction pipe that is vertically arranged in distribution box body and the inlet faces down, siphon destruction pipe that is arranged in parallel with siphon water suction pipe, U-shaped water storage pipe that is located outside distribution box body and is communicated with the upper end of siphon water suction pipe and siphon destruction pipe, right-angle siphon water outlet pipe that is communicated with the pipe section of siphon destruction pipe connected with U-shaped water storage pipe, the inlet height of siphon destruction pipe is higher than the inlet height of siphon water suction pipe, the high end of U-shaped water storage pipe is provided with first valve for communicating with atmosphere, the U bottom horizontal section of U-shaped water storage pipe is lower than the bottom surface of distribution box body and is provided with second valve for water replenishment, the horizontal section pipe bottom of siphon water outlet pipe is same with the inlet height of siphon destruction pipe, the lower end of vertical section of siphon water outlet pipe is provided with third valve.

[0007] The gypsum slurry distribution box for limestone-gypsum desulfurization has one distribution pipe group, and the distribution box body is provided with sliding rails connected with the distribution pipe group to move the distribution pipe group to change the water discharge position and correspond to the water inlets of the dehydration equipment at different positions.

[0008] The gypsum slurry distribution box for limestone-gypsum desulfurization has multiple distribution pipe groups to adapt to multiple sets of dehydration equipment.

[0009] The gypsum slurry distribution box for limestone-gypsum desulfurization has a distance of 10mm between the inlet of the siphon water suction pipe and the bottom surface of the distribution box body.

[0010] The gypsum slurry distribution box for limestone-gypsum desulfurization has a distance of 40mm between the inlet of the siphon destruction pipe and the bottom surface of the distribution box body.

[0011] The gypsum slurry distribution box for limestone-gypsum desulfurization has a U-shaped water storage pipe with a U-shaped bottom horizontal section that is 300mm lower than the bottom surface of the distribution box body.

[0012] The gypsum slurry distribution box for limestone-gypsum desulfurization has a distance of 10mm between the inlet of the siphon water suction pipe and the bottom surface of the distribution box body.

[0013] 1. The slurry is sucked out of the distribution box body by using the siphon principle, and no additional power is needed.

[0014] 2. When the slurry discharge is completed once, the liquid level in the distribution box body drops below the inlet of the siphon destruction pipe, and the siphon is automatically stopped. The slurry is discharged into the distribution box body again, and the liquid level in the distribution box body is above the inlet of the siphon destruction pipe, and the siphon is automatically started to achieve re-suction.

[0015] 3. The siphon water suction pipe and the siphon destruction pipe are in a vertical state inside the distribution box body, and there is no phenomenon of slurry deposition in the pipe, which solves the problem of pipe blockage, is flexible to use, has good stability, and ensures the continuity of production.

[0016] 4. One or more distribution pipe groups can be set according to the needs of the desulfurization system, and are suitable for one-use-one-backup two or more gypsum vacuum belt dehydration machines.

[0017] 5. The highest part of the U-shaped water storage pipe is provided with a first valve for connecting the atmosphere to stop the siphon, and the lowest part is provided with a second valve for water replenishment to start the siphon.

[0018] 6. When the liquid level is below the inlet of the siphon destruction pipe, the siphon stops, the inside of the U-shaped water storage pipe stores water, and the two ends of the siphon water suction pipe have water seals. The horizontal section pipe bottom of the siphon outlet pipe is the same height as the inlet of the siphon destruction pipe. When the liquid level in the distribution box body is above the inlet of the siphon destruction pipe again in the siphon stop state, the water stored in the U-shaped water storage pipe will overflow to the siphon outlet pipe, thereby automatically starting the siphon. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the siphon suction pipe of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the U-shaped water storage pipe of this utility model;

[0022] Figure 4 This is a schematic diagram of the siphon breaking tube of this utility model;

[0023] Figure 5 This is a schematic diagram of the siphon water outlet pipe of this utility model.

[0024] In the diagram: 1. Siphon breaking pipe, 101. Inlet, 2. First valve, 3. Siphon outlet pipe, 301. Horizontal section, 4. Third valve, 5. Second valve, 6. U-shaped water storage pipe, 601. U-bottom horizontal section, 7. Siphon suction pipe, 701. Inlet, 8. Distribution box body. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings. Example

[0026] like Figures 1-5 As shown, the limestone-gypsum desulfurization gypsum slurry distribution box includes a distribution box body 8 and a distribution pipe assembly.

[0027] The distribution pipe assembly includes a siphon suction pipe 7 erected in the distribution box body 8 with the inlet 701 facing downwards, a siphon breaking pipe 1 arranged parallel to the siphon suction pipe 7, a U-shaped water storage pipe 6 located outside the distribution box body 8 and connected to the upper ends of the siphon suction pipe 7 and the siphon breaking pipe 1, and a right-angled siphon outlet pipe 3 connected to the pipe section of the U-shaped water storage pipe 6 that connects to the siphon breaking pipe.

[0028] The inlet 101 of the siphon breaking pipe 1 is higher than the inlet 701 of the siphon suction pipe 7. The high end of the U-shaped water storage pipe 6 is equipped with a first valve 2 for connecting to the atmosphere. The bottom horizontal section 601 of the U-shaped water storage pipe 6 is lower than the bottom surface of the distribution box body 8 and is equipped with a second valve 5 for water replenishment. The bottom of the horizontal section 301 of the siphon outlet pipe 3 is at the same height as the inlet 101 of the siphon breaking pipe 1. The lower end of the vertical section of the siphon outlet pipe 3 is equipped with a third valve 4.

[0029] In this embodiment, the number of the distribution pipe group is one, and the distribution box body 8 is provided with a sliding rail (omitted in the figure) connected with the distribution pipe group, so as to drive the distribution pipe group to move position by using the sliding rail, change the water discharge position, and correspond to the water inlet of the dewatering equipment at different positions.

[0030] In this embodiment, the size of the distribution box body 8 is 1000mm×500mm×500mm, the distance between the inlet 701 of the siphon water suction pipe 7 and the bottom surface 10 of the distribution box body 8 is 10mm, the distance between the inlet 101 of the siphon destruction pipe 1 and the bottom surface of the distribution box body 8 is 40mm, the distance between the bottom of the horizontal section 301 of the siphon water outlet pipe 3 and the bottom surface of the distribution box body 8 is 40mm, and the U bottom horizontal section 601 of the U-shaped water storage pipe 6 is 300mm lower than the bottom surface of the distribution box body 8. The diameters of the siphon water suction pipe 7, the U-shaped water storage pipe 6, the siphon destruction pipe 1 and the siphon water outlet pipe 3 are 57mm respectively, the pipe diameter of the first valve 2 for connecting the atmosphere is 21.3mm, and the pipe diameter of the second valve 5 for water supplement is also 21.3mm.

[0031] Working process:

[0032] Preparation: fill the distribution box body 8 with 50% concentration gypsum slurry.

[0033] Start siphon: close the third valve 4 at the lower end of the siphon water outlet pipe 3, close the first valve 2 for connecting the atmosphere, open the first valve 5 for water supplement, and when all the pipelines are filled with water, close the first valve 2 and open the third valve 4, so that the gypsum slurry can be siphoned out of the distribution box body 8.

[0034] Pause siphon: when the gypsum slurry liquid surface is lower than the inlet 101 of the siphon destruction pipe 1, the siphon is destroyed and the siphon is stopped.

[0035] Automatic recovery of siphon: inject slurry into the distribution box body 8 again, and when the slurry again covers the inlet 101 of the siphon destruction pipe 1, the siphon water outlet pipe 3 discharges water, the siphon is started again, and after a set time, the flow rate is restored to the maximum.

[0036] Stop siphon: open the first valve 2 for connecting the atmosphere, and the siphon is stopped. The distribution pipe group can reach the water inlet of the next dewatering equipment through the sliding rail.

[0037] End work: open the second valve 5 to flush the pipeline.

[0038] Working principle:

[0039] The utility model discloses utilize siphon principle to suck the slurry from distribution box body 8, need not extra power. When the liquid level in distribution box body 8 drops to the inlet 101 of siphon destruction pipe 1 below when once slurry discharge is completed, siphon stops automatically. When siphon stops, U type water storage pipe 6 inside will store water, make siphon water suction pipe 7 both ends have water seal. When the liquid level in distribution box body 8 is higher than the inlet 101 of siphon destruction pipe 1 again, the water stored in U type water storage pipe 6 will overflow to siphon water outlet pipe 3, thereby automatically starting siphon. Embodiment

[0040] The limestone-gypsum method desulfurization gypsum slurry distribution box, including distribution box body 8 and distribution pipe group. Wherein, the number of distribution pipe group is multiple, to adapt multiple sets of dewatering equipment. Each distribution pipe group corresponds to dewatering equipment, need not move.

[0041] The structure of distribution pipe group is same with embodiment 1.

[0042] The above embodiment of the utility model has been explained in detail, but the content is only the preferred embodiment of the utility model, can not be considered for limiting the scope of the embodiment of the utility model. All equivalent changes and improvements made in the scope of the utility model creation, should still belong to the scope of the patent.

Claims

1. A gypsum slurry distribution box for limestone-gypsum desulfurization, comprising a distribution box body and a distribution pipe group, characterized in that: The distribution pipe group comprises a siphon water inlet pipe erected in the distribution box body with the inlet downward, a siphon breaking pipe arranged in parallel with the siphon water inlet pipe, a U-shaped water storage pipe outside the distribution box body and communicating with the upper ends of the siphon water inlet pipe and the siphon breaking pipe, and a right-angle siphon water outlet pipe communicating with the pipe section of the U-shaped water storage pipe connecting the siphon breaking pipe, the inlet height of the siphon breaking pipe is higher than the inlet height of the siphon water inlet pipe, the high end of the U-shaped water storage pipe is provided with a first valve for communicating with the atmosphere, the U-bottom horizontal section of the U-shaped water storage pipe is lower than the bottom surface of the distribution box body and is provided with a second valve for water replenishment, the horizontal section bottom of the siphon water outlet pipe is the same as the inlet height of the siphon breaking pipe, and the lower end of the vertical section of the siphon water outlet pipe is provided with a third valve.

2. The gypsum slurry distribution box for limestone-gypsum method desulfurization according to claim 1, characterized in that: The number of the distribution pipe group is one, and the distribution box body is provided with a sliding rail connected with the distribution pipe group.

3. The gypsum slurry distribution box for limestone-gypsum method desulfurization according to claim 1, characterized in that: The number of the distribution pipe group is multiple.

4. The gypsum slurry distribution box for limestone-gypsum method desulfurization according to claim 1, characterized by: The distance between the inlet of the siphon water inlet pipe and the bottom surface of the distribution box body is 10 mm.

5. The gypsum slurry distribution box for limestone-gypsum desulfurization according to claim 1, characterized in that: The distance between the inlet of the siphon breaking pipe and the bottom surface of the distribution box body is 40 mm.

6. The gypsum slurry distribution box for limestone-gypsum method desulfurization according to claim 1, characterized by: The U-bottom horizontal section of the U-shaped water storage pipe is 300 mm lower than the bottom surface of the distribution box body.

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