CN216550513U

CN216550513U - Bypass filtering device for blast furnace dry dedusting coal gas spraying system

Info

Publication number: CN216550513U
Application number: CN202123000166.8U
Authority: CN
Inventors: 黄俊雄; 周翔; 陈思雨; 李颜宗; 蒲韵竹
Original assignee: CISDI Engineering Co Ltd
Current assignee: CISDI Engineering Co Ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-17
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a bypass filtering device for a blast furnace dry dedusting coal gas spraying system, which comprises a bypass filter, a dosing assembly and an instrument assembly, wherein the bypass filter is provided with a water inlet, a water outlet communicated with a drain pipe and a drain outlet communicated with a drain pipe, the dosing assembly is used for adding a medicine for adsorbing small particle suspended matters into the bypass filter, the dosing assembly comprises a medicine storage cabin and a dosing pipe, the dosing pipe is communicated between the medicine storage cabin and the bypass filter, and the instrument assembly is used for detecting and displaying the pressure and flow conditions of fluid in a pipeline. The utility model forms a set of complete bypass filtration design process for the blast furnace dry method dust removal coal gas spray circulating water system through the bypass filtration device for the blast furnace dry method dust removal coal gas spray system, realizes the purpose of enhancing the capability of the bypass filter for treating small particle suspended matters, and finally improves the water quality of the water supply of the blast furnace dry method dust removal coal gas spray circulating water system.

Description

Bypass filtering device for blast furnace dry dedusting coal gas spraying system

Technical Field

The utility model relates to the technical field of water treatment of a blast furnace dry dedusting gas spraying circulating water system in a steel plant, in particular to a bypass filtering device for the blast furnace dry dedusting gas spraying system.

Background

The design process of the blast furnace dry dedusting gas spraying circulating water bypass filtration is an important component of a blast furnace gas spraying system, and the water supply reliability and the water quality of the water supply directly relate to the cleaning effect of the blast furnace gas. In the operation process of the conventional process, large particle suspended matters in the coal gas are removed by a dry dust removal process, only small particle suspended matters exist in the coal gas, and the conventional filter has a poor removing effect on the small particle suspended matters, so that the water quality of circulating water is gradually deteriorated in a long-time use process, the concentration of impurities and suspended matters in the water is continuously increased, a spray head of a spray tower is blocked, and the spraying effect of the coal gas is reduced.

Therefore, in order to solve the above problems, a bypass filter device for a blast furnace dry dedusting gas spray system is needed, which achieves the purpose of enhancing the capability of the bypass filter for treating small particle suspended matters through the organic combination of the bypass filter, a booster pump and a matched instrument, and finally improves the water quality of a blast furnace dry dedusting gas spray circulating water system.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention aims to overcome the defects in the prior art, and provides a bypass filter device for a blast furnace dry dedusting gas spray system, which achieves the purpose of enhancing the capability of the bypass filter for treating small particle suspended matters through the organic combination of the bypass filter, a pressure pump and a matched instrument, and finally improves the quality of water supplied by the blast furnace dry dedusting gas spray circulating water system.

The bypass filtering device for the blast furnace dry dedusting gas spraying system comprises a bypass filter, a dosing assembly and an instrument assembly, wherein the bypass filter is provided with a water inlet, a water outlet communicated with a drain pipe and a sewage outlet communicated with a sewage pipe, the dosing assembly is used for adding a medicine adsorbing small particle suspended matters into the bypass filter, the dosing assembly comprises a medicine storage cabin and a dosing pipe, the dosing pipe is communicated between the medicine storage cabin and the bypass filter, and the instrument assembly is used for detecting and displaying the pressure and flow conditions of fluid in a pipeline.

Further, be provided with the force (forcing) pump between medicine storage cabin and the dosing pipe, be provided with pressure gauge and flowmeter on the dosing pipe and be used for reading fluid pressure and the flow that adds the medicine in the medicine pipe, the force (forcing) pump provides pressure for adding the medicine in the medicine pipe, and the bypass filter is added to the help medicine, can clearly add the total amount of medicine in the bypass filter promptly speed through setting up pressure gauge and flowmeter on adding the medicine pipe, carries out the water quality testing condition according to bypass filter exhaust water and can carry out scientific feedback control to fluid pressure and flow on adding the medicine pipe.

Furthermore, a pipeline mixer is arranged at the front end of the water inlet of the bypass filter and used for fully mixing the medicine input into the medicine feeding pipe and the filtered water input into the bypass water pipe, the pipeline mixer comprises but is not limited to a static baffle type pipeline mixer, a hole plate type pipeline mixer and a three-way type pipeline mixer, and the pipeline mixer can fully mix the medicine and the bypass filtered water, so that small particle suspended matters in the bypass filtered water are fully adsorbed and accumulated, and the water quality is more fully purified.

Further, bypass filter is provided with the filter core of a plurality of series connections, and set up fluid pressure and the flow that pressure gauge and flowmeter are used for reading the bypass filter water inlet on bypass filter's the water inlet, what bypass filter in this scheme adopted is tertiary filter core, it is better that filterable effect can be guaranteed to multistage filter core, can fully carry out the filtering with the tiny particle suspended solid, mixed water pressure and flow in the bypass filter can obviously be learnt to pressure gauge and the flowmeter of water inlet department, and then can calculate the proportion between bypass filtration water and the medicine, carry out the water quality testing condition according to bypass filter exhaust water and can carry out scientific feedback control to fluid pressure and flow on the bypass filter water inlet.

Further, all set up the valve that is used for the circulation condition in the control pipeline on dosing pipe and the bypass filter inlet tube, the velocity of flow in the pipeline is adjusted in the effect of valve, and the valve form in this scheme includes but not limited to butterfly valve, ball valve, gate valve, can reach the velocity of flow in the regulation liquid pipeline can.

Further, still include liquid crystal display, liquid crystal display is connected with each pressure gauge and flowmeter electricity to show the reading of each pressure gauge and flowmeter, the monitoring of the bypass filter index of intaking of being convenient for, digital demonstration is more directly perceived.

The medicine feeding component feeds the medicine (coagulant) into the water inlet pipe of the bypass filter through the medicine feeding pipe. The side-filtering water after adding the medicine passes through the pipeline mixer and is mixed with the medicament fast, and the small particle suspended solid in the aquatic is unstable under the effect of medicament to the gathering generates large particle suspended solid. The mixed by-pass filtered water is sent into a by-pass filter through a water inlet pipe, and the water treated by the filter is discharged through a water outlet pipe and is used by a blast furnace dry dedusting gas spray circulating water system. In the treatment process, the bypass filter can automatically backwash and discharge sewage at regular time to remove impurities intercepted in the filter, and the discharged sewage is discharged to a regional waste water pipe network through a discharge pipe. The remote monitoring and unmanned guard of the pump field are realized by monitoring the numerical indexes of a flow meter and a pressure gauge on the dosing pipe, monitoring the flow meter of a water inlet pipe of the bypass filter, monitoring the index of a pressure count value and the like.

The utility model has the beneficial effects that: the utility model discloses a bypass filtering device for a blast furnace dry dedusting gas spray system, which forms a set of complete bypass filtering design process for the blast furnace dry dedusting gas spray circulating water system through the bypass filtering device for the blast furnace dry dedusting gas spray system.

Drawings

The utility model is further described below with reference to the following figures and examples:

FIG. 1 is a schematic flow chart of the operation of the present invention;

FIG. 2 is a schematic plan view of the present invention;

fig. 3 is a cross-sectional view of the arrangement of the present invention.

Detailed Description

Fig. 1 is a schematic view of a flow of the dry dedusting gas spraying system of the utility model during operation, fig. 2 is a schematic view of a plane arrangement structure of the dry dedusting gas spraying system of the utility model, and fig. 3 is a cross-sectional view of the arrangement of the dry dedusting gas spraying system of the utility model, the bypass filtering device of the dry dedusting gas spraying system of the utility model in the embodiment comprises a bypass filter 1, a dosing assembly and an instrument assembly, the bypass filter 1 is provided with a water inlet 1a, a water outlet 1b communicated with a drain pipe and a sewage outlet 1c communicated with a sewage pipe, the dosing assembly is used for adding medicines for adsorbing small particle suspended matters into the bypass filter 1, the dosing assembly comprises a medicine storage cabin 2 and a dosing pipe 2a, the dosing pipe 2a is communicated between the medicine storage cabin 2 and the bypass filter 1, and the instrument assembly is used for detecting and displaying the pressure and flow conditions of the fluids in the pipeline.

In this embodiment, be provided with force (forcing) pump 2b between medicine storage cabin 2 and the dosing pipe 2a, be provided with pressure gauge and flowmeter on the dosing pipe 2a and be used for reading fluid pressure and the flow in the dosing pipe 2a, force (forcing) pump 2b provides pressure for the medicine in the dosing pipe 2a, help the medicine to add in bypass filter 1, can clearly add the medicine total amount that bypass filter 1 is speed through setting up pressure gauge and flowmeter on dosing pipe 2a, carry out the water quality testing condition according to bypass filter 1 exhaust water and can carry out scientific feedback control to fluid pressure and flow on dosing pipe 2 a.

In this embodiment, a pipeline mixer 3 is disposed at the front end of the water inlet 1a of the bypass filter 1, the pipeline mixer 3 is used for fully mixing the medicine input in the medicine feeding pipe 2a with the filtered water input by the bypass filter pipe, the pipeline mixer 3 includes, but is not limited to, a static baffle type pipeline mixer 3, a perforated plate type pipeline mixer 3, and a three-way pipeline mixer 3, and the pipeline mixer 3 can fully mix the medicine with the bypass filtered water, so that small suspended particles in the bypass filtered water are fully adsorbed and accumulated, and the water quality is more fully purified.

In this embodiment, bypass filter 1 is provided with the filter core 1d of a plurality of series connections, and set up pressure gauge and flowmeter on bypass filter 1's the water inlet 1a and be used for reading bypass filter 1 water inlet 1 a's fluid pressure and flow, bypass filter 1 in this scheme adopts tertiary filter core 1d, filterable effect can be guaranteed to multistage filter core 1d better, can fully carry out the filtering with the tiny particle suspended solid, the mixed water pressure and the flow in water inlet 1a department and flowmeter can obviously learn to flow into bypass filter 1, and then can calculate the proportion between bypass filtration water and the medicine, carry out the water quality testing condition according to bypass filter 1 discharged water and can carry out scientific feedback regulation to fluid pressure and flow on bypass filter 1 water inlet 1 a.

In this embodiment, all set up the valve that is used for the circulation condition in the control pipeline on dosing pipe 2a and the inlet tube of bypass filter 1, the effect of valve lies in the velocity of flow in the regulation pipeline, and the valve form in this scheme includes but not limited to butterfly valve, ball valve, gate valve, can reach the velocity of flow in the regulation liquid pipeline can.

In this embodiment, still include liquid crystal display, liquid crystal display is connected with each pressure gauge and flowmeter electricity to the reading of each pressure gauge and flowmeter is shown, the monitoring of the bypass filter 1 index of intaking of being convenient for, digital demonstration is more directly perceived.

The medicine feeding component feeds the medicine (coagulant) into the water inlet pipe of the bypass filter 1 through the medicine feeding pipe 2 a. The side-filtering water after adding the medicine passes through the pipeline mixer 3 and is rapidly mixed with the medicament, and the small particle suspended solids in the water are instable under the action of the medicament and are gathered to generate large particle suspended solids. The mixed by-pass filtered water is sent into a by-pass filter 1 through a water inlet pipe, and the water treated by the filter is discharged through a water outlet pipe and is used by a blast furnace dry dedusting gas spray circulating water system. In the treatment process, the bypass filter 1 can automatically backwash and discharge sewage at regular time to remove impurities intercepted in the filter, and the discharged sewage is discharged to a regional waste water pipe network through a discharge pipe. The remote monitoring and the unattended operation of a pump field are realized by monitoring the flow meter and the pressure counting value index on the dosing pipe 2a, the flow meter of the water inlet pipe of the bypass filter 1, the pressure counting value index and the like.

The utility model discloses a bypass filtering device for a blast furnace dry dedusting gas spray system, which forms a set of complete bypass filtering design process for the blast furnace dry dedusting gas spray circulating water system through the bypass filtering device for the blast furnace dry dedusting gas spray system, and the process realizes the purpose of enhancing the capability of the bypass filter 1 for treating small particle suspended matters through the organic combination of the bypass filter 1, a booster pump 2b and a matched instrument, and finally improves the water quality of water supplied by the blast furnace dry dedusting gas spray circulating water system.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A bypass filter equipment that is used for blast furnace dry process dust removal coal gas spraying system which characterized in that: including bypass filter, add medicine subassembly and instrument subassembly, bypass filter be provided with the water inlet, with the delivery port of drain pipe intercommunication and with the drain of blow off pipe intercommunication, add the medicine subassembly be used for to bypass filter adds the medicine of adsorbing the tiny particle suspended solid, it includes that the medicine stores the cabin and adds the pencil to add the medicine subassembly, it communicates between medicine storage cabin and bypass filter to add the pencil, instrument subassembly is used for detecting and shows the interior fluidic pressure and the flow condition of pipeline.

2. The bypass filtering device for the blast furnace dry dedusting gas spraying system as claimed in claim 1, wherein: the medicine storage cabin is provided with the force (forcing) pump with between the pencil, be provided with pressure gauge and flowmeter on the pencil and be used for reading fluid pressure and the flow with in the pencil.

3. The bypass filtering device for the blast furnace dry dedusting gas spraying system as claimed in claim 2, wherein: the front end of the water inlet of the bypass filter is provided with a pipeline mixer, and the pipeline mixer is used for fully mixing the medicine input into the medicine adding pipe and the filtered water input into the bypass water pipe.

4. The bypass filtering device for the blast furnace dry dedusting gas spraying system as claimed in claim 1, wherein: the bypass filter is provided with a plurality of filter elements which are connected in series, and a pressure gauge and a flow meter are arranged on a water inlet of the bypass filter and used for reading the fluid pressure and the fluid flow at the water inlet of the bypass filter.

5. The bypass filtering device for the blast furnace dry dedusting gas spraying system as claimed in claim 1, wherein: and valves for controlling the circulation condition in the pipeline are arranged on the dosing pipe and the water inlet pipe of the bypass filter.

6. The by-pass filtering device for blast furnace dry dedusting gas spraying system according to any one of claims 1 to 5, is characterized in that: still include liquid crystal display, liquid crystal display is connected with each pressure gauge and flowmeter electricity to the monitoring of bypass filter index of intaking of being convenient for is shown the reading of each pressure gauge and flowmeter.