CN210993742U

CN210993742U - Limestone slurry tank with spraying unit

Info

Publication number: CN210993742U
Application number: CN201921841907.5U
Authority: CN
Inventors: 焦玉东; 庚永新
Original assignee: Datang Binzhou Power Generation Co ltd
Current assignee: Datang Binzhou Power Generation Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-14
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a limestone slurry tank of unit is sprayed in area belongs to limestone slurry tank technical field. The utility model discloses a limestone slurry case, limestone slurry case's top is equipped with the feed inlet, the feed inlet is connected through lower powder pipe with the limestone flour storehouse that is located the top, limestone slurry incasement upper portion is equipped with the unit that sprays, wherein spray the unit include with the trunk line that grout making water advances water piping connection, the trunk line both sides are provided with a plurality of lateral canals along the length direction interval, and trunk line and lateral canals are linked together, be provided with a plurality of atomizing nozzle on the lateral canals, the atomizing nozzle slope sets up the both sides at the lateral canals. The utility model aims to overcome current limestone slurry case and easily produce the not enough of raise dust at slurrying in-process, provide a limestone slurry case that unit was sprayed in area, not only alleviateed the raise dust, reduced limestone flour's loss, can also avoid influencing that the staff is healthy and surrounding sanitation.

Description

Limestone slurry tank with spraying unit

Technical Field

The utility model relates to a limestone slurry case technical field, more specifically say, relate to a limestone slurry case of unit is sprayed in area.

Background

The limestone powder mixing system of the power plant comprises: transporting the limestone powder from a limestone powder supply point to a limestone powder bin for storage by using a seal tank car, then sending the limestone powder into a limestone slurry tank by using a pneumatic dome valve and a variable-frequency impeller feeder, fully stirring and mixing the limestone slurry with pulping water to prepare limestone slurry with qualified concentration, and conveying the prepared limestone slurry to an absorption tower for further use by using a limestone slurry pump. Because the limestone powder falls from the eminence, cause raise dust easily, lead to producing a large amount of dust in the pulping case and emerge outside the case from the gas vent, not only make the consumption of limestone powder increase, still seriously influence staff's health and surrounding sanitation. Therefore, how to reduce the dust generated in the pulping process of the limestone slurry tank is a constantly pursued goal in the industry.

Through retrieval, a large number of patents have been published on dust suppression devices for limestone slurry tanks, such as chinese patent application No.: 2015208298729, the name of invention creation is: the utility model provides a limestone flour blanking prevents stifled dust suppression device and limestone flour mixing device, this application discloses a limestone flour blanking prevents stifled dust suppression device and limestone flour mixing device, prevent stifled dust suppression device includes one and prevents stifled case, the upper portion of preventing stifled case is equipped with the entry that is used for the limestone flour blanking, the lower part is established in the top of limestone flour thick liquid case and is opened there is the discharge gate, the outside in preventing stifled case middle part sets up the outer container, the outer container forms the air chamber with the middle part of preventing stifled case, open at the middle part of preventing stifled case has the communicating air hole with the air chamber, prevent stifled incasement and be equipped with humidification mechanism.

Also as in chinese patent application No.: 2016201407819, the name of invention creation is: can prevent the desulfurization slurrying case that the dust emits outward, this application discloses a desulfurization slurrying case that can prevent the dust from emitting outward, including limestone slurry case, limestone slurry case's top is equipped with the gas vent, feed inlet and water inlet, water inlet and slurrying technology water pipe line connection, the feed inlet is connected with the limestone flour storehouse that is located the top, a blast pipe is connected to the gas vent at limestone slurry case's top, this blast pipe bottom is for leaking hopper-shaped, intraductal being equipped with the filter screen that is used for the separation dust, the filter screen top is equipped with the shower nozzle, this shower nozzle and slurrying technology water pipe line connection, the water spray removes dust when slurrying.

The two schemes are good exploration for the dust suppression device of the limestone slurry tank, but still have space for further improvement, and research on the dust suppression device of the limestone slurry tank in the industry has never been stopped.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to overcome current limestone slurry case and easily produce the not enough of raise dust at slurrying in-process, provide a limestone slurry case that unit was sprayed in area, not only alleviateed the raise dust, reduced limestone flour's loss, can also avoid influencing that the staff is healthy and surrounding sanitation.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a lime stone thick liquid case of unit is sprayed in area, including the lime stone thick liquid case, the top of lime stone thick liquid case is equipped with the feed inlet, and the feed inlet is connected through lower powder with the lime stone powder storehouse that is located the top, and lime stone thick liquid incasement upper portion is equipped with sprays the unit, wherein sprays the trunk line that the unit includes advance water piping connection with the pulping water, and the trunk line both sides are provided with a plurality of lateral conduits along length direction interval, and trunk line and lateral conduit are linked together, be provided with a plurality of atomizing nozzle on the lateral conduit, the atomizing nozzle slope sets up the both sides at the lateral conduit.

As a further improvement, the trunk line both sides are provided with a plurality of lateral conduits perpendicularly, and a plurality of lateral conduits are along trunk line length direction evenly spaced apart distribution.

As a further improvement, the outer wall of the limestone slurry tank is all run through at the two ends of the main pipe, and the flange connection is adopted between the water inlet end of the main pipe and the pulping water inlet pipe.

As a further improvement, the main pipe is gradually reduced along the pipe diameter of the direction far away from the pulping water inlet pipe.

As a further improvement, the lateral pipes are gradually reduced along the pipe diameter of the direction away from the main pipe.

As a further improvement of the present invention, the angle between the atomizing nozzle and the branch conduit is α in the range of 45-75 °.

As a further improvement, the two sides of the branch pipeline are provided with a plurality of atomizing nozzles at even intervals, and the atomizing nozzles on the two sides of the branch pipeline are arranged in a staggered manner.

As a further improvement, the limestone slurry tank is provided with an upper spraying unit and a lower spraying unit along the height direction, and the upper spraying unit and the lower spraying unit are arranged in a mutually staggered manner.

As a further improvement, the utility model also comprises a fixing unit arranged below the spraying unit, wherein the fixing unit comprises a plurality of fixing frames arranged in parallel with the main pipeline, and the two ends of the fixing frames are connected with the inner wall of the limestone slurry tank.

As a further improvement, the inlet end of the main pipe is provided with a pressure sensor.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a lime stone slurry case of unit is sprayed in area, the unit is located the below of feed inlet sprays, lime stone powder falls into the lime stone slurry incasement through the feed inlet downwards earlier through the spraying back that sprays the unit, reachs lime stone slurry bottom of the case portion and prepares into the lime stone slurry of qualified concentration behind the further stirring of agitator, avoid the direct high altitude raise dust that falls and arouse of lime stone powder, lime stone powder has alleviateed the raise dust phenomenon through spraying the back that sprays of unit, thereby can avoid the dust to spill over outside the lime stone slurry case in the exhaust hole. This scheme changes current pulping water inlet tube (single female pipe way) into the unit that sprays of the female pipe system distribution pipeline of taking the connection branch pipeline, and wherein arranging of atomizing nozzle designs into the cross section that evenly covers limestone slurry case, and pulping water fully atomizes the cross section that covers whole limestone slurry case under certain pressure through atomizing nozzle, can reach the purpose that limestone slurry case removed dust, reduces environmental pollution

(2) The utility model discloses a lime stone thick liquid case of unit is sprayed in area, the even interval in both sides is provided with a plurality of atomizing nozzle around the lateral conduit, and the atomizing nozzle of both sides is crisscross around the lateral conduit sets up, has increased the atomizing spray range that sprays the unit, has alleviateed the raise dust that limestone flour produced when falling from the feed inlet, and then the dust of avoiding raising up spills over from the exhaust hole at lime stone thick liquid roof portion in the gas, avoids causing environmental pollution.

(3) The utility model discloses a limestone slurry case of unit is sprayed in area, atomizing nozzle's slope design that makes progress has further increased single atomizing nozzle's atomizing and has sprayed the scope, can reduce atomizing nozzle's quantity, reduction in production cost, and can reach and spray the atomization effect better.

(4) The utility model discloses a limestone slurry case of unit is sprayed in area, trunk line reduce gradually along the direction pipe diameter of keeping away from the thick liquid water inlet tube, because the thick liquid water reduces gradually along the direction water pressure of keeping away from the thick liquid water inlet tube, the design of reducing can guarantee that water pressure maintains stable unanimity everywhere on the trunk line, avoids appearing the situation of high low water pressure, and then causes each atomizing nozzle's water pressure different, avoids causing and sprays the uneven condition.

Drawings

Fig. 1 is a schematic structural view of a limestone slurry tank with a spraying unit of the utility model;

fig. 2 is a schematic top view of the spraying unit of the present invention;

fig. 3 is a schematic structural view of the fixing unit of the present invention;

FIG. 4 is a schematic view of the front view structure of the cross section of the branch pipe of the present invention;

fig. 5 is a schematic structural view of a limestone slurry tank according to a second embodiment of the present invention.

The reference numerals in the schematic drawings illustrate:

100. a limestone slurry tank; 110. a pulping water inlet pipe; 111. an inlet valve; 120. an exhaust hole; 130. a blowoff valve; 140. a stirrer; 150. a limestone powder bin; 151. a powder feeding pipe; 200. a spraying unit; 210. a main pipeline; 220. a branch pipe; 221. an atomizing nozzle; 300. a fixing unit; 310. a fixing frame.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

With reference to fig. 1-4, a limestone slurry tank with a spraying unit of this embodiment, including limestone slurry tank 100, the top of limestone slurry tank 100 is provided with a feed inlet, the feed inlet is connected with limestone powder bin 150 located above through lower powder pipe 151, upper portion is equipped with spraying unit 200 in limestone slurry tank 100, wherein spraying unit 200 includes main pipe 210 connected with slurrying water inlet pipe 110, specifically, as shown in fig. 2, the outer wall of limestone slurry tank 100 is all run through at the both ends of main pipe 210 in this embodiment, and adopt flange connection between the inlet end of main pipe 210 and slurrying water inlet pipe 110, namely main pipe 210 crosses whole limestone slurry tank 100 and fixes on limestone slurry tank 100, the stability of main pipe 210 has been guaranteed. The trunk line 210 both sides are provided with a plurality of branch pipes 220 along length direction interval, specifically, as shown in fig. 2, the trunk line 210 left and right sides vertical outside extends and is provided with a plurality of branch pipes 220 in this embodiment, and a plurality of branch pipes 220 are along the even interval distribution of trunk line 210 length direction, and trunk line 210 is linked together with branch pipes 220, make thick liquid flow into each branch pipe 220 respectively after the thick liquid inlet tube 110 flows into trunk line 210 promptly in, guarantee the even circulation distribution of making thick liquid.

In this embodiment, a plurality of atomizing nozzles 221 are disposed on the branch pipe 220, and the atomizing nozzles 221 are obliquely disposed on two sides of the branch pipe 220, specifically, in this embodiment, a plurality of atomizing nozzles 221 are uniformly disposed on the front and rear sides of the branch pipe 220 at intervals, and the atomizing nozzles 221 on the front and rear sides of the branch pipe 220 are staggered, that is, two rows of atomizing nozzles 221 on the inner sides of two adjacent branch pipes 220 are staggered, so that the atomizing spray range of the spray unit 200 is increased, the flying dust generated when the limestone powder falls from the feed port is reduced, and further the flying dust is prevented from overflowing from the exhaust hole 120, thereby preventing environmental pollution.

The spraying unit 200 is located below the feeding hole in the embodiment, limestone powder falls into the limestone slurry tank 100 through the feeding hole downwards and is sprayed by the spraying unit 200, and then reaches the bottom of the limestone slurry tank 100 and is further uniformly stirred by the stirrer 140 to prepare limestone slurry with qualified concentration, so that dust caused by direct high-altitude falling of the limestone powder is avoided, the dust phenomenon is relieved after the limestone powder is sprayed by the spraying unit 200, and therefore the dust is prevented from overflowing from the exhaust hole 120 to the outside of the limestone slurry tank 100 to cause environmental pollution. In this embodiment, the existing slurrying water inlet pipe 110 (single main pipe) is changed into the spraying unit 200 with the main pipe distribution pipeline connected with the branch pipes 220, wherein the arrangement of the atomizing nozzles 221 is designed to uniformly cover the cross section of the limestone slurry tank 100, and the slurrying water is sufficiently atomized through the atomizing nozzles 221 under a certain pressure to cover the cross section of the whole limestone slurry tank 100, so that the purpose of dedusting the limestone slurry tank 100 can be achieved, and the environmental pollution is reduced.

As shown in fig. 2, the main pipeline 210 reduces gradually along the direction pipe diameter of keeping away from thick liquid water inlet tube 110 in this embodiment, because thick liquid water reduces gradually along the direction water pressure of keeping away from thick liquid water inlet tube 110, the design of reducing can guarantee that water pressure keeps stable unanimous everywhere on the main pipeline 210, avoids appearing the situation of high low water pressure, and then causes the water pressure of each atomizing nozzle 221 different, avoids causing and sprays uneven condition. Similarly, the pipe diameter of the branch pipe 220 gradually decreases in a direction away from the main pipe 210. Further ensuring the water pressure of each atomizing nozzle 221 to be stable and consistent and ensuring the uniformity of the whole spraying.

As shown in fig. 3, the present embodiment further includes a fixing unit 300 disposed below the spraying unit 200, wherein the fixing unit 300 includes a plurality of fixing frames 310 disposed parallel to the main pipe 210, two ends of the fixing frames 310 are connected to an inner wall of the limestone slurry tank 100, and two ends of the fixing frames 310 can be welded to the inner wall of the limestone slurry tank 100, so as to ensure stability of the fixing unit 300. Specifically, in the present embodiment, the spraying unit 200 is disposed above the fixing unit 300 to support and fix the spraying unit 200, so as to further ensure the stability of the spraying unit 200.

Example 2

The basic structure of the limestone slurry tank with the spraying unit in the embodiment is the same as that in embodiment 1, but as shown in fig. 5, the limestone slurry tank 100 in the embodiment has a gradually reduced upper cross-sectional area and a gradually increased lower cross-sectional area, that is, the cross-sectional area of the limestone slurry tank 100 from top to bottom is first reduced and then increased, so that a narrower cross section is formed at the upper part of the limestone slurry tank 100, and dust generated by limestone powder falling from the top is mainly concentrated in the area. The top of this embodiment limestone slurry case is equipped with the feed inlet, the feed inlet is connected through lower powder pipe 151 with the limestone flour storehouse 150 that is located the top, upper portion is equipped with in limestone slurry case 100 sprays unit 200, as shown in fig. 5, spray unit 200 setting in this embodiment in the regional top of raise dust concentration, be convenient for spray the atomization process to concentrated raise dust, it is excessive in the exhaust hole 120 at lime slurry case 100 top to avoid the dust, avoid causing environmental pollution.

Two upper and lower spray units 200 are arranged in the limestone slurry tank 100 of the embodiment along the height direction, and the atomizing nozzles 221 on the two upper and lower spray units 200 are arranged in a staggered manner, so that the spray atomization effect on limestone powder can be further improved, and the raised dust can be further reduced.

In this embodiment, the inlet end of the main pipe 210 is provided with a pressure sensor, which can monitor the pressure of the main pipe 210 at any time, so as to regulate and control the opening of the inlet valve 111 on the pulping water inlet pipe 110 at any time. As shown in fig. 1, the bottom of the limestone slurry tank 100 of this embodiment is further provided with a blowoff valve 130 for discharging sewage in the limestone slurry tank 100.

The angle α between the atomizing nozzle 221 and the branch conduit 220 is 60 in this embodiment.

Example 3

The basic structure of the limestone slurry tank with the spraying unit in the embodiment is the same as that in the embodiment 1, but the included angle α between the atomizing nozzle 221 and the branch pipe 220 is 75 degrees in the embodiment.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a limestone slurry case of unit is sprayed in area, includes limestone slurry case (100), and the top of limestone slurry case (100) is equipped with the feed inlet, and the feed inlet is connected its characterized in that through lower powder pipe (151) with limestone flour storehouse (150) that are located the top: upper portion is equipped with in limestone slurry case (100) and sprays unit (200), wherein sprays unit (200) and include trunk line (210) of being connected with slurrying water inlet tube (110), and trunk line (210) both sides are provided with a plurality of branch pipelines (220) along length direction interval, and trunk line (210) are linked together with branch pipeline (220), be provided with a plurality of atomizing nozzle (221) on branch pipeline (220), atomizing nozzle (221) slope sets up the both sides at branch pipeline (220).

2. The limestone slurry tank with the spraying unit as claimed in claim 1, wherein: a plurality of branch pipelines (220) are vertically arranged on two sides of the main pipeline (210), and the branch pipelines (220) are evenly distributed at intervals along the length direction of the main pipeline (210).

3. The limestone slurry tank with the spraying unit as claimed in claim 1, wherein: the two ends of the main pipeline (210) penetrate through the outer wall of the limestone slurry tank (100), and the water inlet end of the main pipeline (210) is connected with the pulping water inlet pipe (110) through a flange.

4. The limestone slurry tank with the spraying unit as claimed in claim 1, wherein: the pipe diameter of the main pipe (210) is gradually reduced along the direction far away from the pulping water inlet pipe (110).

5. The limestone slurry tank with the spraying unit as claimed in claim 3, wherein: the pipe diameter of the branch pipe (220) is gradually reduced along the direction far away from the main pipe (210).

6. The limestone slurry tank with the spraying unit as claimed in claim 1, wherein the included angle between the atomizing nozzle (221) and the branch pipe (220) is α in the range of 45-75 °.

7. The limestone slurry tank with the spraying unit as claimed in claim 1, wherein: a plurality of atomizing nozzles (221) are uniformly arranged on the two sides of the branch pipeline (220) at intervals, and the atomizing nozzles (221) on the two sides of the branch pipeline (220) are arranged in a staggered mode.

8. The limestone slurry tank with the spraying unit as claimed in claim 1, wherein: an upper spraying unit (200) and a lower spraying unit (200) are arranged in the limestone slurry tank (100) along the height direction, and atomizing nozzles (221) on the upper spraying unit (200) and the lower spraying unit (200) are arranged in a staggered mode.

9. The limestone slurry tank with the spray unit as claimed in any one of claims 1 to 8, wherein: the spraying device is characterized by further comprising a fixing unit (300) arranged below the spraying unit (200), wherein the fixing unit (300) comprises a plurality of fixing frames (310) arranged in parallel with the main pipeline (210), and two ends of each fixing frame (310) are connected with the inner wall of the limestone slurry tank (100).

10. The limestone slurry tank with the spraying unit as claimed in claim 9, wherein: and a pressure sensor is arranged at the inlet end of the main pipeline (210).