Dust removal system of carbide slag bin

Abstract

The invention provides a dust removal system of a carbide slag bin, and relates to the technical field of dust removal. The dust removal system of the carbide slag bin comprises a washing tower, a fan and a circulating washing pump, a gas phase inlet of the washing tower is communicated with the carbide slag bin through a gas inlet pipe, a gas phase outlet of the washing tower is communicated with the air inlet end of the fan through a gas outlet pipe, and the liquid outlet end and the liquid inlet end of the circulating washing pump are respectively communicated with the washing tower. Therefore, the washing tower is cleaned by additionally arranging the circulating washing pump, so that the washing tower can be kept in a good washing and filtering effect for a long time, the good dust removal effect and dust removal efficiency of the whole dust removal system are further ensured, the dust removal efficiency of the carbide slag bin is improved, and the good dust removal effect is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal, and in particular to a dust removal system for a carbide slag bin. Background Art

[0002] At present, the dry carbide acetylene process is usually used for the production of 1,4-butanediol. The waste carbide slag produced during the processing is usually transported to the carbide slag bin for collection by means of a scraper or other transport mechanism. Since the water content of carbide slag in the production process of the dry carbide acetylene process is usually controlled at 5%-10%, the solid phase temperature is usually at 90℃-115℃, and the carbide slag bin and dry slag conveying equipment are continuously filled with nitrogen for protection. When the hot carbide slag enters the carbide slag bin, the gas temperature in the carbide slag bin rises, and water vapor and nitrogen carry part of the carbide dust and are discharged from the top. As the production load gradually increases, the amount of dust also increases.

[0003] At present, the dust removal method for the dust discharged from the top of the calcium carbide slag bin is usually to use a dust removal fan and a washing tower for dust removal, that is, the dust discharged from the top of the calcium carbide slag bin is washed and dusted by the dust removal fan in the washing tower, and then discharged from the exhaust pipe through the dust removal fan. As the production load gradually increases, the dust removal effect is poor due to the limited washing effect of the washing tower. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. This part of the invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] An embodiment of the present invention provides a dust removal system for a carbide slag bin, comprising: a washing tower, a fan and a circulating washing pump, wherein the gas phase inlet of the washing tower is connected to the gas outlet of the carbide slag bin through an air inlet pipe, the gas phase outlet of the washing tower is connected to the air inlet end of the fan through an air outlet pipe, and the liquid outlet end and liquid inlet end of the circulating washing pump are respectively connected to the washing tower.

[0006] Furthermore, the dust removal system of the carbide slag bin also includes: a first nozzle connected to the inside of the air inlet pipe, the air inlet pipe is provided with a first connecting port connected to the first nozzle, and the liquid outlet is also configured to be connected to the first connecting port.

[0007] Furthermore, there are multiple first nozzles, which are arranged at intervals along the circumference of the air inlet pipe, and the first nozzles are configured to be able to adjust the liquid outlet direction.

[0008] Furthermore, the washing tower is provided with a second connecting port located between the gas phase inlet and the gas phase outlet, and a third connecting port located below the gas phase inlet; the liquid outlet is connected to the first connecting port through a first pipeline, the liquid outlet is connected to the second connecting port through a second pipeline, and the liquid inlet is connected to the third connecting port through a third pipeline.

[0009] Furthermore, there are two second connection ports, which are arranged at intervals along the direction from the gas phase inlet to the gas phase outlet; a second nozzle is provided inside the washing tower, and the second nozzle is arranged in a double-layer manner along the direction from the gas phase inlet to the gas phase outlet, and the double-layered second nozzle is connected to the two second connection ports through pipelines respectively.

[0010] Furthermore, the distance between the two second connection ports in the vertical direction is 1.5 m to 3 m.

[0011] Furthermore, the dust removal system of the carbide slag bin also includes: an exhaust pipe, a first end of the exhaust pipe is connected to the air outlet end of the fan, and a second end of the exhaust end is provided with an exhaust port, and the exhaust port is located above the target object.

[0012] Furthermore, the vertical distance between the exhaust port and the target object is 4m to 8m.

[0013] Furthermore, the wind volume of the fan is 10000m 3 / h to 16000m 3 / h.

[0014] Furthermore, the dust removal system of the carbide slag bin also includes: a pollution collecting device, which is arranged around the washing tower and the circulating washing pump, and the liquid outlet is also configured to be connected to the pollution collecting device, and the washing tower is provided with a sewage outlet connected to the pollution collecting device.

[0015] The carbide slag bin dust removal system provided in the embodiment of the present invention includes a washing tower, a fan and a circulating washing pump. The gas phase inlet of the washing tower is connected with the gas outlet of the carbide slag bin through an air inlet pipe, and the gas phase outlet of the washing tower is connected with the air inlet end of the fan through the air outlet pipe. By adding a circulating washing pump, the liquid outlet end and the liquid inlet end of the circulating washing pump are respectively connected with the washing tower. Thus, the washing tower can be circulated and cleaned by the circulating washing pump, which can improve the washing and filtering effect of the washing tower. In this way, even if the production load gradually increases, the washing tower can maintain a good washing and filtering effect for a long time, thereby ensuring the good dust removal effect and dust removal efficiency of the entire dust removal system. At the same time, this setting can improve the cleanliness rate of the gas flowing through the fan, reduce the possibility of calcium carbide sludge remaining inside the fan, thereby reducing the maintenance frequency of the fan, extending the maintenance cycle of the fan, and ensuring that the dust content in the gas discharged by the fan is low or dust-free, so that the fan and dust removal system can meet environmental protection requirements, and increase the service life of the fan, increase the overall service life of the dust removal system, improve the dust removal efficiency of the calcium carbide slag bin and ensure good dust removal effects, which is suitable for popularization and application.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. Among them:

[0018] Figure 1 A schematic structural diagram of a dust removal system for a carbide slag bin provided by an embodiment of the present invention is shown;

[0019] Figure 2 The structural schematic diagram of the washing tower provided by the embodiment of the present invention is shown;

[0020] Figure 3 A comparison diagram of the dilute acid tower and the washing tower modifications provided by the embodiments of the present invention is shown.

[0021] in, Figures 1 to 3 The corresponding relationship between the reference numerals and the component names is as follows:

[0022] 100 dust removal system, 110 washing tower, 111 gas phase inlet, 112 gas phase outlet, 113 second connection port, 114 third connection port, 115 operation port, 116 sewage outlet, 120 fan, 130 circulating washing pump, 131 liquid inlet end, 132 liquid outlet end, 133 first pipeline, 134 second pipeline, 135 third pipeline, 140 air inlet pipe, 141 first connection port, 150 air outlet pipe, 160 exhaust pipe, 161 exhaust port, 170 water source, 180 sewage collecting device, 210 carbide slag bin, 211 air outlet, 220 feeder, 230 scraper, 240 dilute acid tower. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0025] Refer to the following Figures 1 to 3 The dust removal system 100 of the carbide slag bin 210 provided according to some embodiments of the present invention is described. The carbide slag bin 210 is used to collect and contain the remaining carbide slag produced by the dry carbide acetylene process to produce 1,4-butanediol.

[0026] Among them, Figure 1 As shown, the process flow of producing 1,4-butanediol by dry carbide acetylene process is generally as follows: carbide powder is evenly and controllably added to the generator through a feeder, and water is evenly sprayed on the carbide by a nozzle after adjusting the ratio to hydrolyze it; the produced crude acetylene is discharged from the outlet at the top of the generator, washed and cooled in a washing and cooling tower, and then enters the acetylene gas outer main pipe and gas cabinet from the positive water seal. Among them, the carbide slag in the generator moves from top to bottom under the stirring to the slag discharge port at the bottom of the generator and is discharged by the feeder 220, and the carbide slag is transported to the carbide slag bin 210 by conveying equipment such as a scraper 230.

[0027] Due to the continuous nitrogen protection inside the carbide slag bin 210 and the carbide slag conveying equipment, the carbide slag with higher temperature enters the carbide slag bin 210, the gas temperature in the carbide slag bin 210 increases, and water vapor and nitrogen carry part of the carbide dust to be discharged from the top. As the production load gradually increases, the amount of dust also increases accordingly.

[0028] In view of this, if Figure 1 and Figure 2As shown, the present invention provides a dust removal system 100 for a carbide slag bin 210, comprising: a washing tower 110, a fan 120 and a circulating washing pump 130, the gas phase inlet 111 of the washing tower 110 is connected to the gas outlet 211 of the carbide slag bin 210 through an air inlet pipe 140, the gas phase outlet 112 of the washing tower 110 is connected to the air inlet end of the fan 120 through an air outlet pipe 150, and the liquid outlet end 132 and the liquid inlet end 131 of the circulating washing pump 130 are respectively connected to the washing tower 110.

[0029] The dust removal system 100 for the carbide slag bin 210 provided in the embodiment of the present invention includes a washing tower 110, a fan 120 and a circulating washing pump 130. The gas phase inlet 111 of the washing tower 110 is connected to the gas outlet 211 of the carbide slag bin 210 through an air inlet pipe 140, and the gas phase outlet 112 of the washing tower 110 is connected to the air inlet end of the fan 120 through an air outlet pipe 150. By adding a circulating washing pump 130, the liquid outlet end 132 and the liquid inlet end 131 of the circulating washing pump 130 are respectively connected to the washing tower 110. Therefore, the washing tower 110 can be circulated and cleaned by the circulating washing pump 130, so that the washing and filtering effect of the washing tower 110 can be improved. In this way, even if the production load gradually increases, the washing tower 110 can maintain a good washing and filtering effect for a long time, thereby ensuring the good dust removal effect and dust removal efficiency of the entire dust removal system 100. At the same time, this setting can improve the cleanliness rate of the gas flowing through the fan 120, reduce the possibility of calcium carbide sludge remaining inside the fan 120, and thus reduce the maintenance frequency of the fan 120, extend the maintenance cycle of the fan 120, and ensure that the dust content in the gas discharged by the fan 120 is low or dust-free, so that the fan 120 and the dust removal system 100 can meet environmental protection requirements, and improve the service life of the fan 120, improve the overall service life of the dust removal system 100, improve the dust removal efficiency of the calcium carbide slag bin 210 and ensure a good dust removal effect, which is suitable for popularization and application.

[0030] The liquid outlet 132 and the liquid inlet 131 of the circulating washing pump 130 are respectively connected to the washing tower 110, and the liquid outlet 132 of the circulating washing pump 130 can be directly or indirectly connected to the washing tower 110 through a pipeline, and the liquid inlet 131 of the circulating washing pump 130 is directly or indirectly connected to the washing tower 110 through a pipeline. It can be understood that as long as the liquid outlet 132 and the liquid inlet 131 of the circulating washing pump 130 are respectively connected to the washing tower 110 to form a circulating water system passing through the circulating washing pump 130 and the washing tower 110, the circulating washing pump 130 can be used to wash and clean the washing tower 110, so that the washing tower 110 can maintain a good washing and cleaning effect for a long time.

[0031] Among them, Figure 1As shown, a gas outlet 211 may be provided at the top of the carbide slag bin 210, a first end of the gas inlet pipe 140 is connected to the gas outlet 211, and a second end of the gas inlet pipe 140 is connected to the gas phase inlet 111 of the washing tower 110. The gas phase inlet 111 of the washing tower 110 may be provided near the bottom of the washing tower 110, and the gas phase outlet 112 of the washing tower 110 may be located at the top.

[0032] like Figure 1 As shown, in some possible embodiments provided by the present invention, the dust removal system 100 of the carbide slag bin 210 also includes: a first nozzle, the first nozzle is connected to the inside of the air inlet pipe 140, and the air inlet pipe 140 is provided with a first connecting port 141 connected to the first nozzle, and the liquid outlet end 132 is also configured to be connected to the first connecting port 141.

[0033] In this embodiment, a first nozzle is added inside the air inlet pipe 140, and the liquid outlet 132 of the circulating washing pump 130 is connected to the first nozzle through the first connecting port 141 to supply water to the first nozzle. As a result, the first nozzle can be used to wash and remove dust from the air flow flowing from the carbide slag bin 210 into the washing tower 110 through the air inlet pipe 140, thereby improving the cleaning rate of the gas flowing into the washing tower 110, alleviating the cleaning burden of the washing tower 110, and ensuring that the washing tower 110 has a good washing and cleaning effect. As a result, the cleaning rate of the gas flowing through the fan 120 can be further improved, reducing the possibility of carbide sludge remaining inside the fan 120, improving the service life of the fan 120, and ensuring a good dust removal effect of the dust removal system 100.

[0034] That is to say, in this embodiment, the dust removal system 100 of the calcium carbide slag bin 210 is additionally provided with a circulating washing pump 130 and a first nozzle, and the circulating washing pump 130 performs a circulating washing and filtering operation on the washing tower 110. At the same time, the circulating washing pump 130 supplies water to the first nozzle, and the gas flowing into the washing tower 110 is washed and filtered by the first nozzle, thereby improving the cleanliness of the gas entering the washing tower 110, and enabling the washing tower 110 to maintain a good washing and filtering effect for a long time, thereby, even if the production load gradually increases, the washing tower 110 can also maintain a good washing and filtering effect for a long time, ensuring a good dust removal effect and dust removal efficiency of the entire dust removal system 100. It can also greatly reduce the possibility of calcium carbide slag remaining inside the fan 120, reduce the dust rate of the gas discharged by the fan 120, enable the fan 120 to meet environmental protection requirements, and improve the service life of the fan 120.

[0035] The liquid outlet 132 of the circulating washing pump 130 may be directly or indirectly connected to the first connecting port 141 of the air inlet pipe 140 through a pipeline.

[0036] In some possible embodiments provided by the present invention, there are multiple first nozzles, and multiple first nozzles can improve the washing efficiency of the gas flowing through the intake pipe 140 and improve the washing effect.

[0037] Among them, multiple first nozzles are arranged at intervals along the circumference of the intake pipe 140, so that the spray areas of the multiple first nozzles can more comprehensively cover the radial cross-street surface of the intake pipe 140. In this way, the multiple first nozzles cooperate with each other to more comprehensively wash the gas flowing through the intake pipe 140, ensuring a good washing and dust removal effect, so that the gas flowing into the washing tower 110 through the intake pipe 140 has a higher cleaning effect and a lower dust content.

[0038] Among them, the first nozzle is configured to adjust the liquid outlet direction, thereby, the liquid outlet direction of the first nozzle can be flexibly adjusted, so that the liquid outlet area of ​​the first nozzle can more comprehensively cover the gas flowing through the air intake pipe 140 to ensure a good washing effect.

[0039] Specifically, a washing nozzle is usually arranged in the washing tower 110, such as the second nozzle mentioned later, and the connection mode of the first nozzle and the air inlet pipe 140 can refer to the connection mode of the second nozzle in the washing tower 110. Specifically, each first nozzle can include a root ball valve, a connecting hose and a spiral nozzle, so that the nozzle can rotate relative to the root ball valve to adjust the liquid outlet direction.

[0040] Specifically, the number of the first nozzles may be two, three, four or other numbers. Taking the example of three first nozzles, adjacent first nozzles are installed at an angle of 120°.

[0041] It is understandable that the liquid washed by the first nozzle can flow into the washing pump through the air intake pipe 140 .

[0042] like Figure 1 and Figure 2 As shown, in some possible embodiments provided by the present invention, the washing tower 110 is provided with a second connection port 113 located between the gas phase inlet 111 and the gas phase outlet 112, and a third connection port 114 located below the gas phase inlet 111; the liquid outlet 132 is connected to the first connection port 141 through the first pipeline 133, the liquid outlet 132 is connected to the second connection port 113 through the second pipeline 134, and the liquid inlet 131 is connected to the third connection port 114 through the third pipeline 135. Thus, the liquid outlet 132 and the liquid inlet 131 of the circulating washing pump 130 are both connected to the washing tower 110, realizing the circulation connection of the liquid pipelines of the two, and at the same time, the circulating washing pump 130 can supply water to the first nozzle.

[0043] Specifically, Figure 2As shown, the washing tower 110 further includes a drain port 116 at the bottom, so that solid impurities and / or liquid impurities in the washing tower 110 are discharged through the drain port 116. The washing tower 110 further includes an operation port 115 opened on the side wall, through which a worker and / or an auxiliary tool can install, repair, or replace the second nozzle or other components inside the washing tower 110.

[0044] like Figure 1 and Figure 2 As shown, in some possible embodiments provided by the present invention, the number of the second connecting ports 113 is two, and the two second connecting ports 113 are arranged at intervals along the direction from the gas phase inlet 111 to the gas phase outlet 112. A second nozzle is arranged inside the washing tower 110, and the second nozzle is arranged in a double-layer along the direction from the gas phase inlet 111 to the gas phase outlet 112. The double-layer arranged second nozzles are respectively connected to the two second connecting ports 113 through pipelines.

[0045] In this embodiment, the second nozzle in the washing tower 110 is set to a double-layer arrangement structure, and two second connecting ports 113 are respectively connected to the double-layer arranged second nozzles, and the two second connecting ports 113 are connected to the liquid outlet 132 of the circulating washing pump 130. Therefore, the circulating washing pump 130 can supply water to the double-layer arranged second nozzles in the washing tower 110, so that the washing tower 110 can perform a double-layer washing and filtering effect. Compared with the related art in which only one washing nozzle is set in the washing tower, the washing area, washing effect and washing efficiency of the washing tower 110 are greatly increased, the cleaning rate of the gas flowing through the fan 120 is improved, the dust removal efficiency of the dust removal system 100 is improved, and a good dust removal effect is ensured.

[0046] In the above embodiment, in the vertical direction, the distance between the two second connection ports 113 is 1.5 m to 3 m. Figure 2 As shown by the arrow Z in FIG. 1 , in the vertical direction, the distance between the two second connection ports 113 can be as follows: Figure 2 As shown in D0 in FIG. 1 , D0 is 1.5 m to 3 m. By properly setting the distance between the two second connection ports 113 in the vertical direction, the shell of the washing tower 110 has good strength. At the same time, the distance between the double-layer second nozzles in the washing tower 110 is reasonable, so that the gas flowing through the washing tower 110 can be fully and comprehensively double-washed, ensuring good washing effect and washing efficiency.

[0047] Specifically, the distance between the two second connection ports 113 in the vertical direction may be 1.5 m, 1.8 m, 2 m, 3 m, 2.5 m, 2.8 m, 3 m, or any distance between 1.5 m and 3 m.

[0048] like Figure 1As shown, in some possible embodiments provided by the present invention, the dust removal system 100 also includes: an exhaust pipe 160, the first end of the exhaust pipe 160 is connected to the air outlet end of the fan 120, and the second end of the exhaust pipe 160 is provided with an exhaust port 161, and the exhaust port 161 is located above the target object.

[0049] The subject matter may be a generator building for producing 1,4-butanediol using a dry calcium carbide acetylene process. In the related art, the gas after washing and filtration is directly discharged through the outlet of the fan, or discharged through an exhaust pipe connected to the outlet of the fan. Since the outlet of the fan or the exhaust port of the exhaust pipe is not high enough and does not exceed the top of the generator building, there is a possibility that part of the discharged gas will enter the generator building. Since the discharged gas contains acetylene gas, there is a safety risk.

[0050] Therefore, in this embodiment, the first end of the exhaust pipe 160 is connected to the air outlet end of the fan 120, and the exhaust port 161 at the second end of the exhaust pipe 160 is located above the target object, that is, the exhaust port 161 is located above the generating building, thereby avoiding or reducing the possibility of the gas exhausted through the exhaust port 161 flowing into the generating building, thereby improving the safety of the dust removal system 100.

[0051] In some possible embodiments provided by the present invention, the vertical distance between the exhaust port 161 and the target object is 4m to 8m. That is, the vertical distance between the exhaust port 161 and the top of the generating building can be 4m to 8m, thereby further avoiding or reducing the possibility of the gas discharged through the exhaust port 161 flowing into the generating building, thereby improving the safety of the dust removal system 100.

[0052] Specifically, the vertical distance between the exhaust port 161 and the target object may be 4 m, 5 m, 6 m, 7 m, 8 m, or any distance between 4 m and 8 m.

[0053] In some possible embodiments provided by the present invention, the air volume of the fan 120 is 10000m 3 / h to 16000m 3 / h.

[0054] Since the air volume of the fan in the dust removal system in the prior art usually does not exceed 8000m 3 / h, there is a problem that the air volume of the fan is too small, and the dust on the top of the calcium carbide slag bin cannot be completely sucked away by the fan, and part of it is directly discharged to pollute the environment. To this end, in this embodiment, by increasing the air volume of the fan 120, such as the air volume of the fan 120 is 10000m 3 / h to 16000m 3 / h, so that the dust on the top of the carbide slag bin 210 can be more comprehensively and thoroughly sucked away by the fan 120 and enter the dust removal system 100 for washing and filtration, thereby reducing the problem of dust being directly discharged into the external environment and polluting the environment.

[0055] Specifically, the air volume of the fan 120 can be 10000m 3 / h、12000m 3 / h、13000m 3 / h、14000m 3 / h、15000m 3 / h、16000m 3 / h, or 10000m 3 / h to 16000m 3 Any value between / h.

[0056] like Figure 1 As shown, in some possible embodiments provided by the present invention, the dust removal system 100 of the carbide slag bin 210 also includes: a pollution collecting device 180, which is arranged around the washing tower 110 and the circulating washing pump 130, and the liquid outlet 132 is also configured to be connected to the pollution collecting device 180, and the washing tower 110 is provided with a sewage outlet 116 connected to the pollution collecting device 180.

[0057] In this embodiment, the provision of the sewage collecting device 180 can realize the collection of the liquid discharged from the circulating washing pump 130 and the collection of the liquid discharged from the washing tower 110, thereby facilitating the centralized treatment of the discharged liquid.

[0058] Specifically, the sewage collecting device 180 can be a cofferdam arranged around the washing tower 110 and the circulating washing pump 130, and the cofferdam is used to collect the discharge of the circulating washing pump 130 and the washing tower 110. The accumulated water in the cofferdam can be drained to a nearby groundwater well by a trough, thereby processing the liquid. In this way, the waste cement slag in the cofferdam can be fully recovered during routine maintenance and cleaning, achieving the purpose of environmentally friendly green production. It is understandable that the sewage collecting device 180 can also be other devices that meet the requirements.

[0059] Further, the liquid inlet end 131 of the circulating washing pump 130 may also be connected to a water source 170 to supply water to the circulating washing pump 130. Specifically, the water source 170 may be primary water or a common water source 170.

[0060] Furthermore, the dust removal system 100 also includes a plurality of valves arranged on each liquid pipeline to realize the control of each liquid pipeline. For example, a valve body is arranged on each pipeline connected to the liquid inlet end 131 of the circulating washing pump 130, and a valve body is arranged on each pipeline connected to the liquid outlet end 132 of the circulating washing pump 130 to control the circulation and isolation of the liquid in each pipeline, so that the on-off condition of each pipeline can be reasonably controlled by each valve body according to the requirements of different dust removal efficiency and / or dust removal effect of the dust removal system 100. It is understandable that the local operating column of the dust removal system 100 and the electrical appliances involved in the dry calcium carbide acetylene process can be explosion-proof, and the motor of the scraper 230 can also be explosion-proof to improve the safety of the system.

[0061] In a specific example, Figure 3 As shown, the washing tower 110 provided by the present invention can be transformed using the idle dilute acid tower 240 tower body replaced by the second phase acetylation, and the specific transformation process is as follows:

[0062] First, Figure 3 As shown, after the middle of the tower body of the original idle dilute acid tower 240 is cut off by a distance of D1, the upper section with a height of D3 and the lower section with a height of D2 are welded together, so that the height of the modified washing tower 110 is D2+D3. Among them, the air inlet pipe 140 connects the air outlet 211 at the top of the calcium carbide slag bin 210 and the gas phase inlet 111 at the bottom of the lower section, and the gas phase outlet 112 at the top of the upper section is connected to the air inlet end of the fan 120 through the air outlet pipe 150; the third connecting port 114 at the bottom of the lower section is connected to the liquid inlet end 131 of the circulating washing pump 130.

[0063] Second, another second connection port 113 is opened at a preset distance below the original second connection port 113 of the upper section, and is connected to the liquid outlet 132 of the circulating washing pump 130 through the second pipeline 134 to form two layers of washing water. Specifically, the distance between the newly opened second connection port 113 and the lower section is as follows: Figure 3 As shown in D3.

[0064] Third, two layers of second nozzles are welded inside the washing tower 110, and the connection method between the second nozzle and the washing tower 110 can be the same as the connection method of the water spray nozzle in the washing tower 110 of the generator.

[0065] Fourth, the original inner diameter of the packing layer, grate plate, etc. in the tower body of the dilute acid tower 240 is completely removed to increase the internal volume of the improved washing tower 110.

[0066] Specifically, the size range of D1 can be any size from 3000mm to 5000mm, the size range of D2 can be any size from 6250mm to 8250mm, the size range of D3 can be any size from 3670mm to 5670mm, and the size range of D4 can be any size from 2000mm to 3000mm.

[0067] In a specific example, the size of D1 is 4000 mm, the size of D2 is 7250 mm, the size of D3 is 4670 mm, and the size of D4 is 2450 mm.

[0068] The dust removal system 100 of the carbide slag bin 210 provided by the embodiment of the present invention can completely or mostly suck away the dust on the top of the carbide slag bin 210 due to the large air volume of the fan 120. The washing effect of the washing tower 110 is good, which reduces the amount of dust in the gas discharged by the fan 120, so that the gas discharged by the fan 120 can be dust-free or with a small amount of dust, thereby reducing pollution to the environment. At the same time, since the exhaust port 161 of the exhaust pipe 160 connected to the fan 120 is higher than the generating building, the safety risk can be reduced. As a result, the dust removal efficiency of the carbide slag bin 210 can be greatly improved after the modification, and a good dust removal effect can be ensured, so that the rectification system meets the environmental protection requirements. At the same time, after the cofferdam is set as the sewage collection device 180 on the surrounding side of the washing tower 110 and the circulating washing pump 130, the waste cement slag can be fully recovered during daily maintenance and cleaning, thereby achieving the purpose of environmental protection and green production.

[0069] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship described in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the description of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust removal system for carbide slag silo, characterized in that: include: A washing tower, a fan and a circulating washing pump, wherein the gas phase inlet of the washing tower is connected to the gas outlet of the carbide slag bin through an air inlet pipe, the gas phase outlet of the washing tower is connected to the air inlet end of the fan through an air outlet pipe, and the liquid outlet and liquid inlet ends of the circulating washing pump are respectively connected to the washing tower.

2. The dust removal system for carbide slag silo according to claim 1, characterized in that: Also includes: The first nozzle is connected to the inside of the air inlet pipe. The air inlet pipe is provided with a first connection port connected to the first nozzle. The liquid outlet is also configured to be connected to the first connection port.

3. The dust removal system for carbide slag silo according to claim 2 is characterized in that: There are multiple first nozzles, which are arranged at intervals along the circumference of the air inlet pipe. The first nozzles are configured to be able to adjust the liquid outlet direction.

4. The dust removal system for carbide slag silo according to claim 2, characterized in that: The washing tower is provided with a second connecting port located between the gas phase inlet and the gas phase outlet, and a third connecting port located below the gas phase inlet; The liquid outlet is connected to the first connection port through a first pipeline, the liquid outlet is connected to the second connection port through a second pipeline, and the liquid inlet is connected to the third connection port through a third pipeline.

5. The dust removal system for carbide slag bin according to claim 4, characterized in that: The number of the second connection ports is two, and the two second connection ports are arranged at intervals along the direction from the gas phase inlet to the gas phase outlet; The washing tower is provided with a second nozzle inside, and the second nozzle is arranged in a double layer from the gas phase inlet to the gas phase outlet, and the second nozzle arranged in the double layer is connected to the two second connecting ports through pipelines respectively.

6. The dust removal system for carbide slag silo according to claim 5, characterized in that: The distance between the two second connection ports in the vertical direction is 1.5 m to 3 m.

7. The dust removal system for carbide slag silo according to claim 1, characterized in that: Also includes: An exhaust pipe, wherein a first end of the exhaust pipe is connected to an air outlet of the fan, and a second end of the exhaust pipe is provided with an exhaust port, and the exhaust port is located above the target object.

8. The dust removal system for carbide slag bin according to claim 7, characterized in that: The vertical distance between the exhaust port and the target object is 4m to 8m.

9. The dust removal system for carbide slag silo according to claim 1, characterized in that: The wind volume of the fan is 10000m 3 / h to 16000m 3 / h.

10. The dust removal system for carbide slag silo according to claim 1, characterized in that: Also includes: A sewage collecting device is arranged around the washing tower and the circulating washing pump, the liquid outlet is also configured to be connected to the sewage collecting device, and the washing tower is provided with a sewage outlet connected to the sewage collecting device.

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