CN216498766U - Lime milk dosing pipeline conveying device - Google Patents

Abstract

The utility model provides a lime milk dosing pipeline conveying device, which belongs to the field of lime milk dosing and comprises a stirring barrel, a first filtering assembly and a dosing pipeline, wherein the upper end of the stirring barrel is provided with a water injection port and a lime dosing port; the lower extreme of agitator is provided with the discharge gate, the discharge end of discharge gate pass through the connecting pipe with first filtering component's feed end intercommunication, add the feed end of medicine pipeline with first filtering component's discharge end intercommunication, the discharge end of adding the medicine pipeline is provided with the valve. The lime milk neutralizing tank has the beneficial effects that the lime milk can be fully stirred and filtered for multiple times before being added into the neutralizing tank, so that the blockage of a dosing pipeline caused by large particles in the lime milk is avoided.

Description

Lime milk dosing pipeline conveying device

Technical Field

The utility model belongs to the field of lime milk dosing, and particularly relates to a lime milk dosing pipeline conveying device.

Background

In the flue gas desulfurization process of a thermal power plant, the gypsum slurry in the desulfurization device can enrich impurities such as heavy metal elements, extremely fine dust and chloride ions in the continuous circulating process, the impurities can accelerate the corrosion of the desulfurization device on the one hand, the quality of the gypsum can be influenced on the other hand, and the desulfurization efficiency of the desulfurization device can be influenced at the same time, so that the desulfurization device needs to discharge a certain amount of wastewater to reduce the content of the impurities in the gypsum slurry.

After the wastewater is discharged, the desulfurization wastewater flows into a neutralization tank, lime milk is added into the neutralization tank, the pH value of the wastewater is adjusted, fluoride ions in the wastewater are changed into insoluble calcium fluoride precipitates, most heavy metal ions in the wastewater are separated out in the form of slightly soluble hydroxide, but in the actual operation process, the lime milk is easy to harden in a conveying pipeline, so that the pipeline is blocked, and the normal operation of equipment is influenced.

Disclosure of Invention

The utility model aims to provide a lime milk dosing pipeline conveying device capable of reducing the times of pipeline blockage in the lime milk conveying process.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a lime milk dosing pipeline conveying device comprises a stirring barrel, a first filtering assembly and a dosing pipeline, wherein a water filling port and a lime dosing port are formed in the upper end of the stirring barrel; the lower extreme of agitator is provided with the discharge gate, the discharge end of discharge gate pass through the connecting pipe with first filtering component's feed end intercommunication, add the feed end of medicine pipeline with first filtering component's discharge end intercommunication, the discharge end of adding the medicine pipeline is provided with the valve. When the lime milk is added into the neutralization tank, the lime in the lime milk and the water can be fully mixed through the stirring barrel, and the lime milk flowing into the dosing pipeline is ensured to have enough fluidity; the lime milk is filtered by the first filtering assembly, and the blockage of a dosing pipeline caused by large granular substances in the lime milk is avoided.

Further, the first filtering assembly comprises a filtering tank, and the upper end of the filtering tank is hermetically connected with the discharge end of the connecting pipe; a first filter screen is detachably mounted in the middle of the filter tank, and a slag outlet is formed in the wall of the filter tank above the first filter screen; below of first filter screen, be provided with lime milk discharge gate on the cell wall of filter-tank, lime milk discharge gate with add the feed end sealing connection of medicine pipeline, like this when lime milk flows through the filter-tank, the first filter screen of accessible filters to can take out the impurity of straining off through the slag notch.

Furthermore, a second filtering assembly is arranged at the discharge end of the dosing pipeline, and the valve is installed on the second filtering assembly, so that the lime milk flowing out of the dosing pipeline can be further filtered through the second filtering assembly.

Furthermore, the second filtering assembly comprises a filtering pipeline, one end of the filtering pipeline is hermetically connected with the discharge end of the dosing pipeline, and the valve is installed in the middle of the filtering pipeline; and a second filter screen and a third filter screen are respectively arranged on two sides of the valve in the filter pipeline, so that lime milk circulating in the filter pipeline can be secondarily filtered after the valve is opened.

Furthermore, the second filter screen is arranged on one side, close to the discharge end of the dosing pipeline, of the valve, and is a coarse filter screen; the third filter screen is arranged on one side of the valve far away from the discharge end of the dosing pipeline, and the third filter screen is a fine filter screen; like this because the mesh size of second filter screen and third filter screen is inconsistent, it can carry out sectional type ground to lime breast and filter, reduces the work load of two filter screens.

Further, the discharge gate sets up the barrel head of agitator, just the height of discharge gate is higher than the barrel head height of agitator can avoid the sediment commodity circulation at the agitator barrel head to go into in connecting pipe and the medicine pipeline like this.

Furthermore, the medicine adding pipeline is made of UPVC material, so that the blocking rate of the medicine adding pipeline is further reduced.

Furthermore, a flowmeter is arranged on the pipe wall of the dosing pipeline, and the valve is a ball valve, so that the flow of lime milk in the dosing pipeline is conveniently controlled.

According to the technical scheme, the utility model has the following advantages: when the lime milk is added into the neutralization tank by using the lime milk mixer, the lime milk mixer can ensure that lime and water in the lime milk are fully mixed through the mixing tank and ensure that the lime milk flowing into the dosing pipeline has enough fluidity; the lime milk is filtered for a plurality of times through the first filtering component and the second filtering component, so that the blockage of a dosing pipeline caused by large granular substances in the lime milk is further avoided.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1. stirring motor, 2, lime add mouthful, 3, agitator, 4, (mixing) shaft, 5, stirring vane, 6, first filter assembly, 7, slag notch, 8, filter-tank, 9, first filter screen, 10, lime breast discharge gate, 11, add the medicine pipeline, 12, second filter screen, 13, third filter screen, 14, valve, 15, flowmeter, 16, connecting pipe, 17, discharge gate, 18, water filling port, 19, filter piping.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figure 1, the utility model provides a lime milk dosing pipeline conveying device which comprises a stirring barrel 3, a first filtering assembly 6 and a dosing pipeline 11. The top of the stirring barrel 3 is provided with a water injection port 18 and a lime adding port 2, and cover plates are arranged at the water injection port 18 and the lime adding port 2; a stirring shaft 4 is rotationally connected in the stirring barrel 3, a stirring blade 5 is arranged at the middle lower part of the stirring shaft 4, and a stirring motor 1 is connected to the upper part of the stirring shaft 4 in a transmission manner, so that the stirring shaft 4 and the stirring blade 5 can be driven by the stirring motor 1 to stir limestone and water in the stirring barrel 3, the limestone and water are fully mixed, and the lime milk in the stirring barrel 3 is prevented from precipitating; the bottom of the stirring barrel 3 is provided with a discharge port 17, and the height of the discharge port 17 is higher than that of the bottom of the stirring barrel 3. The discharge end of discharge gate 17 pass through connecting pipe 16 with the feed end intercommunication of first filtering component 6, the feed end of adding medicine pipeline 11 with the discharge end intercommunication of first filtering component 6, just be provided with flowmeter 15 on the pipe wall of adding medicine pipeline 11 the discharge end of adding medicine pipeline 11 is provided with valve 14.

Specifically, the first filtering component 6 comprises a filtering tank 8, the upper end of the filtering tank 8 is hermetically connected with the discharge end of the connecting pipe 16, and a first filtering net 9 is detachably mounted at the middle lower part of the filtering tank 8. A slag outlet 7 is arranged on the wall of the filter tank 8 above the first filter screen 9; below the first filter screen 9, a lime milk discharge port 10 is arranged on the wall of the filter tank 8, and the lime milk discharge port 10 is connected with the feed end of the dosing pipeline 11 in a sealing manner.

Preferably, the discharge end of the dosing pipeline 11 is further provided with a second filtering assembly, and the lime milk flowing out of the dosing pipeline 11 is subjected to secondary filtering through the second filtering assembly. Specifically, the second filtering component includes filtering duct 19, filtering duct 19 one end with add the discharge end sealing connection of medicine pipeline 11, just valve 14 is installed filtering duct 19's middle part valve 14's both sides, still be provided with second filter screen 12 and third filter screen 13 in the filtering duct 19 respectively. The second filter screen 12 is arranged on one side of the valve 14 close to the discharge end of the dosing pipeline 11, and the second filter screen 12 is preferably a coarse filter screen; the third filter screen 13 is arranged on one side of the valve 14 far away from the discharge end of the dosing pipeline 11, and the third filter screen 13 is preferably a fine filter screen.

It is to be understood that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are intended to be open-ended, i.e., to mean either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The lime milk dosing pipeline conveying device is characterized by comprising a stirring barrel (3), a first filtering assembly (6) and a dosing pipeline (11), wherein a water injection port (18) and a lime adding port (2) are formed in the upper end of the stirring barrel (3), a stirring shaft (4) is connected in the stirring barrel (3) in a rotating mode, a stirring motor (1) is connected to the upper end of the stirring shaft (4) in a transmission mode, and stirring blades (5) are arranged on the middle lower portion of the stirring shaft (4); the lower extreme of agitator (3) is provided with discharge gate (17), the discharge end of discharge gate (17) pass through connecting pipe (16) with the feed end intercommunication of first filtering component (6), add the feed end of medicine pipeline (11) with the discharge end intercommunication of first filtering component (6), the discharge end that adds medicine pipeline (11) is provided with valve (14).

2. The lime milk dosing pipe conveying device according to claim 1, wherein the first filter assembly (6) comprises a filter tank (8), and the upper end of the filter tank (8) is in sealing connection with the discharge end of the connecting pipe (16); a first filter screen (9) is detachably mounted in the middle of the filter tank (8), and a slag outlet (7) is formed in the wall of the filter tank (8) above the first filter screen (9); and a lime milk discharge port (10) is formed in the wall of the filter tank (8) below the first filter screen (9), and the lime milk discharge port (10) is connected with the feed end of the dosing pipeline (11) in a sealing manner.

3. The lime milk dosing pipe conveying device according to claim 2, wherein a second filter assembly is arranged at the discharge end of the dosing pipe (11), and the valve (14) is mounted on the second filter assembly.

4. The lime milk dosing pipeline conveying device according to claim 3, characterized in that the second filter assembly comprises a filter pipe (19), one end of the filter pipe (19) is hermetically connected with the discharge end of the dosing pipe (11), and the valve (14) is installed in the middle of the filter pipe (19); and a second filter screen (12) and a third filter screen (13) are respectively arranged in the filter pipeline (19) at two sides of the valve (14).

5. The lime milk dosing pipeline conveying device according to claim 4, wherein the second filter screen (12) is arranged on one side of the valve (14) close to the discharge end of the dosing pipeline (11); the third filter screen (13) is arranged on one side, far away from the discharge end of the dosing pipeline (11), of the valve (14).

6. The lime milk dosing pipeline conveying device according to claim 5, wherein the second filter screen (12) is a coarse filter screen and the third filter screen (13) is a fine filter screen.

7. The lime milk feeding pipeline conveying device according to any one of claims 1 to 6, wherein the discharge port (17) is arranged at the bottom of the stirring barrel (3), and the height of the discharge port (17) is higher than the height of the bottom of the stirring barrel (3).

8. The lime milk dosing pipeline conveying device according to claim 7, wherein the dosing pipeline (11) is made of UPVC material.

9. The lime milk dosing pipeline conveying device according to claim 7, wherein a flow meter (15) is arranged on the pipe wall of the dosing pipeline (11).

10. Lime milk dosing pipeline conveying device according to claim 7, characterized in that the valve (14) is a ball valve.

Images