CN212348320U - Lime mud filter device of kiln desulfurizing tower - Google Patents

Abstract

The utility model discloses a kiln desulfurizing tower lime mud filter equipment relates to sewage waste gas environmental protection and handles the field. This scheme includes lime wash circulation pond, circulation drawing liquid pump and a plurality of deposit case, and the upper portion of deposit case is provided with the overflow mouth, and the bottom of deposit case is provided with fork truck fork claw connecting portion, and the deposit case is provided with the vibration subassembly that drives the vibration of deposit case outward. The lime mud filter device for the kiln desulfurizing tower is convenient and fast to precipitate and filter the solid impurity lime mud of the lime water solution, is high in filtering efficiency, reduces labor intensity of post workers, and is simple in structure, low in manufacturing cost and good in social benefit and environmental benefit.

Description

Lime mud filter device of kiln desulfurizing tower

Technical Field

The utility model relates to a sewage waste gas environmental protection field, concretely relates to kiln desulfurizing tower lime mud filter equipment.

Background

The economy of China develops at a high speed, and the problem of industrial pollution caused by industrial development is more and more emphasized.

In the aspect of ceramic factory sewage and waste gas treatment, the method is in the stage of innovation and promotion.

At present, the known kiln desulfurization tower lime gypsum method, for example, chinese patent application No. 201610119638.6, discloses a method and a system for treating flue gas desulfurization wastewater by limestone/lime-gypsum method, which comprises adding lime, sodium sulfate, heavy metal precipitator, flocculant and coagulant into the desulfurization wastewater to be treated, and finally desulfurizing the wastewater through the procedures of precipitation, effluent neutralization and the like.

In addition, another desulfurization mode is adopted, namely lime water is sprayed into the acidic waste gas in the kiln desulfurization tower to react, so that the effect of treating the kiln waste gas is achieved, and the lime water needs to be filtered before spraying.

In order to reduce the blockage of the pipelines and the spray gun by the lime mud, the lime water is filtered.

The traditional filtering method adopts a squeezer mode for treatment, and has a plurality of defects:

firstly, the whole set of squeezer equipment is bulky, is matched with an environment-friendly tank for use, contains a plunger pump and a mud pressing filter plate, and is used for pressurization, a conveying belt and the like, so that certain waste is caused;

and secondly, the workload of operators is increased, so that the manufacturing cost of enterprises is increased, and the enterprises are subjected to capital burden.

Therefore, a lime mud filter device suitable for a kiln desulfurizing tower is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a kiln desulfurizing tower lime sediment filter equipment, it includes lime wash circulation pond, circulation drawing liquid pump and deposit case, solid impurity lime mud to lime aqueous solution through the deposit case carries out the deposit, solid lime mud accessible fork truck shifts away and uses as ceramic raw materials behind the deposit, and the liquid of lime aqueous solution after the filtration is as desulfurization treatment's raw materials, thereby can fully utilize lime wash, the utilization ratio of resource is improved and filter equipment simple structure, it is convenient to filter.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

the utility model provides a kiln desulfurizing tower lime mud filter equipment, includes lime wash circulation pond, still includes circulation drawing liquid pump and a plurality of deposit case, the circulation drawing liquid pump passes through the transfer line and connects respectively lime wash circulation pond the deposit case, the upper portion of deposit case is provided with the overflow mouth, the bottom of deposit case is provided with fork truck fork claw connecting portion, the deposit case is provided with the vibration subassembly outward, the vibration subassembly drives the deposit case vibration.

Through the arrangement, the circulating liquid pumping pipe is respectively connected with the lime water circulating pool and the depositing box through liquid conveying pipes, when the water solution in the lime water circulating pool is filtered, the lime water solution is pumped into the depositing box from the lime water circulating pool through the circulating liquid pumping pipe, the upper part of the depositing box is provided with an overflow port, solid impurity lime mud in the lime water solution is separated from liquid under the action of self weight, the separated solid impurity lime mud is precipitated in the depositing box, the flowing liquid is discharged out of the depositing box through the overflow port, the lime water in the lime water circulating pool is effectively filtered through multiple circulation, the solid impurity lime mud deposited in the depositing box can be transported away through a forklift and used as a raw material for ceramic production, the liquid part of the filtered lime water solution can be conveyed into a kiln desulfurizing tower and used as an alkaline treating agent, and the filtering device can filter the lime water solution, the structure is simple, the lime water solution can be fully utilized, the waste of resources is reduced, and the energy conservation and environmental protection are realized;

the vibration assembly is arranged, and the vibration assembly drives the deposition box to vibrate, so that deposited solid impurity lime mud in the deposition box can be vibrated and compacted, solid and liquid in the deposition box are further effectively separated, and the filtering effect of the lime water solution is improved.

Preferably, at least two deposition boxes are arranged, the deposition boxes are arranged adjacently, the heights of the upper ends of the deposition boxes are gradually lowered, and the overflow port of the deposition box with the higher height of the upper end of each two adjacent deposition boxes is positioned above the top of the other deposition box.

Through setting up like this, the setting of deposit box is two at least, the upper end height that the adjacent setting of deposit box and deposit box descends gradually, thereby when circulating filtration lime aqueous solution, can carry out two-stage deposit at least to lime aqueous solution in a circulation in-process, improve filterable efficiency, and, when circulating the drawing liquid pump with lime aqueous solution pump to one of them deposit box, rivers are more urgent, can take deposited solid impurity up, make deposited solid impurity flow out the deposit box along with the rivers, influence filterable effect and efficiency, and set up the deposit box of two-stage at least, can cushion rivers, make the solid impurity lime sediment of taking out in the liquid that flows from last one-level deposit box less, thereby improve filterable effect.

Preferably, the overflow port is connected with an overflow pipe, and the liquid outlet end of the overflow pipe is arranged towards the bottom of the deposition tank.

Through setting up like this, the overflow pipe extension is followed the route that the liquid that the overflow mouth flows, reduces the pollution of the liquid that the overflow mouth flows to the settling tank outer wall, can also make the settling tank overflow exhaust liquid flow to next stage settling tank or flow back to in the lime wash circulation pond as far as possible, reduces the loss of lime water solution.

Preferably, the middle part of the side wall of the sedimentation tank is provided with a water outlet, and the water outlet is provided with a drain valve.

By means of the arrangement as such, it is possible to,

preferably, the fork claw connecting part of the forklift comprises at least two connecting blocks, the connecting blocks are connected with the bottom surface of the deposition box, and the connecting blocks are provided with inserting grooves for inserting fork claws of the forklift.

Through setting up like this, set up the connecting block in the bottom of deposit box to set up the plug-in groove concave on the connecting block, fork claw of fork truck can peg graft in the plug-in groove, thereby can use fork truck to transport the deposit box, the convenience is to the removal and the change of deposit box.

Preferably, the vibration assembly comprises a vibrator fixedly arranged on the outer wall of the deposition box.

Through setting up like this, the vibration subassembly adopts the vibrator, with vibrator direct mount on the outer wall of deposit box, directly drives the vibration of deposit box through the vibration of vibrator to make the solid impurity lime mud vibration compaction of deposit in the deposit box, further make the effective separation of solid-liquid in the deposit box, improve filterable effect.

Preferably, the vibrator is fixed to a mounting bracket, and an upper end of the mounting bracket is provided with a hook-shaped coupling portion that can be hooked with an upper end of the deposition chamber.

Through setting up like this, can separate vibrator and deposit case, the vibrator is applicable in different deposit cases, improves the rate of utilization of vibrator, reduces the wasting of resources.

Preferably, a mounting frame is arranged on the lime water circulating pool, a placing groove for placing the depositing box is formed in the mounting frame, the vibration assembly comprises a vibrator, and the vibrator is fixedly arranged on the mounting frame and is abutted against the outer wall of the depositing box.

Through setting up like this, with vibration subassembly and deposit box separation to the reduction is shifting the damage that deposit box in-process probably caused the vibrator, and is favorable to reducing the weight of deposit box in addition, places deposit box back in the standing groove, makes the outer wall butt of vibrator and deposit box, thereby the vibrator starts work, can drive the vibration of deposit box, carries out the process of normal vibration compaction solid impurity lime sediment.

Compared with the prior art, the utility model discloses profitable technological effect has been obtained:

1. the lime mud filter device for the kiln desulfurizing tower is convenient and fast to precipitate and filter the solid impurity lime mud of the lime water solution, is high in filtering efficiency, reduces labor intensity of post workers, and is simple in structure, low in manufacturing cost and good in social benefit and environmental benefit.

2. Adopt the utility model discloses a filter equipment, the solid impurity lime mud that is detained in the settling tank after filtering can regard as ceramic manufacture's raw materials to can carry out make full use of to lime wash solution, it is extravagant to reduce the material, improves the utilization efficiency of resource, has better economic benefits and environmental benefit.

Drawings

FIG. 1 is a schematic view of the overall structure of a lime mud filter device of a kiln desulfurizing tower in embodiment 1 of the present invention;

FIG. 2 is a right side view of the deposition chamber of embodiment 1 of the present invention with the overflow pipe removed;

figure 3 is a left side view of a deposition chamber in accordance with embodiment 1 of the present invention;

fig. 4 is the overall structure schematic diagram of the lime mud filter device of the kiln desulfurizing tower in the embodiment 2 of the utility model.

Wherein, the technical characteristics that each reference numeral refers to are as follows:

1. a lime water circulation tank; 101. a bearing block; 2. a circulating liquid pump; 3. a deposition chamber; 301. a side plate; 3011. an overflow port; 30111. an overflow pipe; 3012. a drain valve; 30121. a drain pipe; 302. a base plate; 3021. a forklift jaw connection part; 30211. connecting blocks; 302111, a plug groove; 4. a transfusion tube; 5. a vibrating assembly; 501. a vibrator; 5011. mounting a bracket; 50111. a hook-shaped connecting portion; 6. a mounting frame; 601. an in-place detection sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following specific embodiments.

Example 1

Referring to fig. 1 and 2, the embodiment discloses a lime mud filter device for a kiln desulfurization tower, which comprises a lime water circulation pool 1, a circulation liquid pump 2 and a plurality of sedimentation tanks 3, wherein liquid inlet ends and liquid outlet ends of the circulation liquid pump 2 are respectively communicated with the lime water circulation pool 1 and the sedimentation tanks 3 through liquid conveying pipes 4, overflow ports 3011 are arranged at the upper parts of the sedimentation tanks 3, fork claw connecting parts 3021 of a forklift are arranged at the bottom of the sedimentation tanks 3, and the fork claw connecting parts 3021 of the forklift are connected with fork claws of the forklift, so that the sedimentation tanks 3 can be conveniently transported; in this embodiment, the circulating pump 2 is a pump of 15 KW.

Referring to fig. 1 and 3, the deposition box 3 is further provided with a vibration assembly 5, and the vibration assembly 5 is attached to the outer wall of the deposition box 3 to drive the deposition box 3 to vibrate.

Referring to fig. 1, 2 and 3, the deposition chambers 3 are arranged at least two, the deposition chambers 3 are arranged adjacently, the heights of the upper ends of the deposition chambers are gradually lowered, and the overflow port 3011 of one deposition chamber 3 with the higher height of the upper end is positioned above the top of the other deposition chamber 3 in the two adjacent deposition chambers 3, so that the liquid overflowing from the previous deposition chamber 3 can flow to the next deposition chamber 3 for re-deposition.

In this embodiment, two deposition boxes 3 are provided, wherein one deposition box 3 is a cube iron box with a side length of 1200mm and a thickness of 5mm, the other deposition box 3 is an iron box with a length of 1200mm, a width of 1200mm, a height of 1000mm and a thickness of 5mm, the deposition box 3 comprises four side plates 301 and a bottom plate 302, the upper portion of the deposition box 3 is normally open, water enters from the upper portion, an overflow port 3011 is arranged at the middle position of the upper end of one of the side plates 301, in this embodiment, the overflow port 3011 is an oval opening with a long axis of 400mm and a short axis of 200 mm.

Referring to fig. 1, an overflow pipe 30111 is connected to the overflow port 3011, a liquid outlet end of the overflow pipe 30111 is disposed toward the bottom of the deposition chamber 3, and a distance is kept between the liquid outlet and the outer wall of the deposition chamber 3.

Referring to fig. 3, a drainage port (not shown) is provided at a central portion of a sidewall of the settling tank 3, a drainage valve 3012 is provided at the drainage port, a drainage pipe 30121 is connected to the drainage port, and the drainage valve 3012 is provided on the drainage pipe 30121.

Referring to fig. 1, the fork claw connecting portion 3021 of the forklift includes at least two connecting blocks 30211, the connecting blocks 30211 are all connected to the bottom surface of the deposition chamber 3, the connecting blocks 30211 are provided with insertion grooves 302111 for inserting fork claws of the forklift, and in this embodiment, the insertion grooves 302111 have a length × width: 200mm is multiplied by 70mm, and the fork claws of the forklift are inserted, so that the deposition box 3 can be conveniently lifted and transported by the forklift.

Referring to fig. 1, a support block 101 is further arranged on the lime water circulation tank 1, and the support block 101 is abutted against the bottom of the deposition tank 3, so that the connection block 30211 is suspended and spaced from the top surface of the lime water circulation tank 1, and the deposition tank 3 can be lifted and carried by a forklift conveniently.

Referring to fig. 1 and 3, the vibration assembly 5 includes a vibrator 501, and in this embodiment, the vibrator 501 is fixedly disposed on an outer wall of the deposition chamber 3.

Specifically, referring to fig. 3, the vibrator 501 is fixedly mounted on a mounting bracket 5011, and the upper end of the mounting bracket 5011 is provided with a hook connection portion 50111, and is hooked with the upper end of the deposition chamber 3 through the hook connection portion 50111, thereby fixing the vibrator 501 outside the deposition chamber 3.

By adopting the mode, the vibrator 501 and the deposition boxes 3 can be conveniently detached and separated, the vibrator 501 can be switched and used in different deposition boxes 3, the utilization rate of the vibrator 501 is improved, and the resource waste is reduced.

Example 2

Referring to fig. 4, the present embodiment discloses another lime mud filtering device for a kiln desulfurization tower, which is different from embodiment 1 in that:

be provided with mounting bracket 6 on lime wash circulation pond 1, be provided with the standing groove (in the figure) that supplies deposit box 3 to place on mounting bracket 6, vibration subassembly 5 includes vibrator 501, and vibrator 501 is fixed to be set up on mounting bracket 6, and vibrator 501 extends to in the standing groove and vibrator 501 and the outer wall butt of deposit box 3.

The mounting frame 6 may further be provided with an in-place detection sensor 601 and a controller (not shown in the figure), the in-place detection sensor 601, the circulating liquid pump 2 and the vibrator 501 are all electrically connected to the controller, the in-place detection sensor 601 may detect whether the deposition tank 3 is placed in place, that is, whether the outer wall of the deposition tank 3 abuts against the vibrator 501, the in-place detection sensor 601 may be one of a point contact switch, a photoelectric switch or a travel switch, when the deposition tank 3 is placed in place, the in-place detection sensor 601 outputs a trigger signal to the controller, and the controller may execute a related action according to the feedback signal, for example, the circulating liquid pump 2 is turned on, and the vibrator 501 is started.

And an alarm device (not shown in the figure) can be arranged and is a sound and/or light alarm, the alarm is connected with the controller, when the in-place detection sensor 601 does not detect that the deposition box 3 is in place, the controller controls the alarm device to be started to alarm and remind, and the alarm device is closed by the controller until the deposition box 3 is in place.

Example 3

The embodiment discloses a desulfurization process of a kiln desulfurization tower, which applies the desulfurization tower and a lime mud filter device of the kiln desulfurization tower in the embodiment 1 or 2, and comprises the following steps:

s1: adding lime powder and water into a lime water circulating pool according to a formula to prepare lime water solution; the proportion adopts the matching ratio of lime water commonly used in the prior art, for example, the weight ratio of the quicklime to the water is 1: 1;

s2: starting a circulating liquid pump, pumping the lime water solution into a deposition box from a lime water circulating pool, precipitating solid impurities in the lime water solution in the deposition box, and refluxing liquid in the lime water solution into the lime water circulating pool from an overflow port;

in the solid impurity precipitation process, starting a vibration component to work for 2-3 minutes every hour;

s3: the filtered lime water solution is sprayed into a desulfurizing tower to react with acidic waste gas in a kilnAdjusting the pH of the flue gas to 9.0-9.5, and enabling heavy metal ions Cu²⁺、Ni2+、Cr³⁺Separating from the waste water in the form of hydroxide precipitate;

s4: after the height of the solid impurities accumulated reaches a certain height, the deposition box is transported to a ceramic raw material bin by a forklift, and the solid impurities are stored for later use.

And S4, when the height of the solid impurities accumulated reaches the position of the water outlet and the height of the sedimentation box is half of the height of the sedimentation box, transferring the sedimentation box away by using a forklift, and replacing the sedimentation box with a new one.

Referring to fig. 1, a circulating liquid pump is started, a filtering device circularly works according to the flow direction of an arrow in the drawing, lime water solution in a lime water circulating pool is conveyed to a deposition tank through a liquid conveying pipe, the precipitation of solid impurity lime slag is carried out in a first deposition tank by utilizing the principle that lime slag is easy to precipitate and separate in water, a vibrator of the first deposition tank is started for 2 minutes every hour in the circulating working process, so that the solid impurity lime slag in the deposition tank is compacted and agglomerated, and water in the deposition tank is extruded upwards and discharged from an overflow port;

liquid overflowing from the first settling tank flows into the second settling tank from the upper part of the second settling tank to be settled for the second time, and solid impurity lime mud can be remained in liquid discharged from the first settling tank, so that the solid impurity can be settled for the second time, the flow rate of the liquid discharged from an overflow port of the second settling tank is reduced, the solid impurity deposited by water flow is favorably carried away from the settling tank, and the effect of settling and filtering is improved.

And when the solid impurity lime mud fully reaches the drain hole, the two deposition boxes are respectively transported to the ceramic raw material bin by a forklift, and the lime mud is stored for later use.

And in the transferred-out sedimentation tank, a drain valve is opened, and water above solid impurity lime mud is drained out of the sedimentation tank through a drain port, so that solid impurities are retained in the sedimentation tank and are used as raw materials of ceramics.

After lime sludge taken out from the precipitation tank is stored for a certain amount, the lime sludge is added into a ceramic body formula as one of ceramic raw materials and recycled, so that the workload of lime sludge treatment can be reduced, and higher economic, social and environmental benefits can be generated.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.

Claims (8)

1. The utility model provides a kiln desulfurizing tower lime mud filter equipment, includes lime wash circulation pond, its characterized in that still includes circulation drawing liquid pump and a plurality of deposit case, the circulation drawing liquid pump passes through the transfer line and connects respectively lime wash circulation pond the deposit case, the upper portion of deposit case is provided with the overflow mouth, the bottom of deposit case is provided with fork truck fork claw connecting portion, the deposit case is provided with the vibration subassembly outward, the vibration subassembly drives the vibration of deposit case.

2. The lime mud filter device of claim 1, wherein the number of the settling tanks is at least two, the settling tanks are adjacently arranged, the heights of the upper ends of the settling tanks are gradually lowered, and the overflow port of the settling tank with the higher height of the upper end of the two adjacent settling tanks is positioned above the top of the other settling tank.

3. The lime mud filter device of claim 1 or 2, wherein an overflow pipe is connected to the overflow port, and a liquid outlet end of the overflow pipe is arranged towards the bottom of the settling tank.

4. The lime mud filter unit of claim 3, wherein a water outlet is arranged in the middle of the side wall of the settling tank, and a drain valve is arranged at the water outlet.

5. The lime mud filter device of claim 1, 2 or 4, wherein the forklift claw connection part comprises at least two connection blocks, the connection blocks are connected with the bottom surface of the deposition box, and the connection blocks are provided with insertion grooves for insertion of the forklift claws.

6. The kiln desulfurization tower lime mud filter unit of claim 1, 2, or 4, wherein the vibration assembly comprises a vibrator fixedly disposed on an outer wall of the settling tank.

7. The lime mud filter assembly of claim 6, wherein the vibrator is secured to a mounting bracket, the mounting bracket having an upper end provided with a hook-shaped coupling portion that is engageable with the upper end of the settling tank.

8. The lime mud filter unit of claim 1, 2 or 4, wherein a mounting frame is arranged on the lime water circulation tank, a placing groove for placing the settling tank is arranged on the mounting frame, and the vibration assembly comprises a vibrator which is fixedly arranged on the mounting frame and is abutted against the outer wall of the settling tank.

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