Cement production flue gas treatment system based on pipeline sensing

Abstract

The utility model provides a kind of cement production flue gas treatment system based on pipeline sensing, it is related to the technical field of flue gas detection, processing in cement production system, and this flue gas treatment system includes first data acquisition module, processor module, flue gas transmission pipeline and absorption tower;First data acquisition module is arranged inside the flue gas transmission pipeline, and first data acquisition module includes first dust concentration sensor, first SO2 concentration sensor and first CO2 concentration sensor, and absorption tower includes multiple dust removal module, first spraying module and second spraying module.The utility model can obtain the state of flue gas flowing through inside flue gas transmission pipeline, specifically including the concentration of dust, SO2 and CO2 in flue gas, for different state flue gas, processor module can be adjusted the number of dust removal module opened in absorption tower and the concentration of absorption liquid accordingly, so that the absorption capacity of absorption tower is adapted to flue gas state, can effectively purify and impurity-removing flue gas and reduce energy, resource waste.

Description

Technical Field

[0001] This utility model relates to the field of flue gas detection and treatment technology in cement production systems, and in particular to a cement production flue gas treatment system based on pipeline sensing. Background Technology

[0002] A cement production system generally includes modules such as crushing and pre-homogenization, raw meal preparation and homogenization, preheating and decomposition, cement clinker calcination, and cement grinding and packaging. The flue gas generated during the cement clinker calcination stage is transported to the absorption tower through a flue gas transmission pipeline. The flue gas is at a high temperature and contains pollutants such as dust, SO2, and CO2. The pollutants are adsorbed in the absorption tower, so that the flue gas emitted into the atmosphere meets the emission standards and achieves the effect of environmental protection.

[0003] In existing technologies, a constant amount of absorbent liquid is usually set in the absorption tower and a constant number of dust removal devices are turned on to meet emission standards. When the flue gas conditions are relatively good, this will result in waste of absorbent liquid and energy. When the flue gas conditions are relatively bad, the pollutants cannot be effectively absorbed, making it difficult to meet emission standards. Furthermore, this will cause a sharp increase in the workload of the equipment inside the absorption tower, thereby affecting the service life and working efficiency of the absorption tower. Utility Model Content

[0004] In view of this, the present invention provides a cement production flue gas treatment system based on pipeline sensing to eliminate or improve one or more defects existing in the prior art.

[0005] This utility model provides a cement production flue gas treatment system based on pipeline sensing, including a first data acquisition module, a processor module, a flue gas transmission pipeline, and an absorption tower. The first data acquisition module is disposed inside the flue gas transmission pipeline and includes a first dust concentration sensor, a first SO2 concentration sensor, and a first CO2 concentration sensor. The first data acquisition module is used to collect the first dust concentration, first SO2 concentration, and first CO2 concentration of the flue gas inside the flue gas transmission pipeline. The first data acquisition module is wired or wirelessly connected to the processor module and is used to transmit the first dust concentration, first SO2 concentration, and first CO2 concentration of the flue gas inside the flue gas transmission pipeline. The first CO2 concentration is transmitted to the processor module; the end of the flue gas transmission pipe is connected to the absorption tower, which includes multiple dust removal modules, a first spray module, and a second spray module; the dust removal modules, the first spray module, and the second spray module are all wired or wirelessly connected to the processor module; the processor module is used to determine the number of dust removal modules to be activated based on the first dust concentration; the processor module is used to determine the concentration of the SO2 absorption liquid sprayed by the first spray module based on the first SO2 concentration; the processor module is used to determine the concentration of the CO2 absorption liquid sprayed by the second spray module based on the first CO2 concentration.

[0006] In some embodiments of this utility model, the cement production flue gas treatment system based on pipeline sensing further includes a second data acquisition module. The second data acquisition module is disposed at the outlet end of the absorption tower. The second data acquisition module includes a second dust concentration sensor, a second SO2 concentration sensor, and a second CO2 concentration sensor. The second data acquisition module is used to collect the second dust concentration, the second SO2 concentration, and the second CO2 concentration of the flue gas discharged from the absorption tower. The second data acquisition module is connected to the processor module by wire or wireless means and is used to transmit the second dust concentration, the second SO2 concentration, and the second CO2 concentration to the processor module to determine whether the flue gas discharged from the outlet end of the absorption tower meets the standards.

[0007] In some embodiments of this utility model, the cement production flue gas treatment system based on pipeline sensing further includes an alarm module. The alarm module includes an audible and visual alarm and a temperature sensor. The audible and visual alarm is located in the central control room, and the temperature sensor is located inside the flue gas transmission pipeline. Both the audible and visual alarm and the temperature sensor are wired or wirelessly connected to the processor module. When the temperature sensor detects that the temperature inside the flue gas transmission pipeline is higher than the safe temperature, the processor module controls the audible and visual alarm to issue an audible and visual alarm.

[0008] In some embodiments of this utility model, both the first spray module and the second spray module include a spray pipeline, multiple spray heads, a water pump, a water tank, and a solution tank. The bottom of the spray pipeline is connected to the solution pool at the bottom of the absorption tower, and the top of the spray pipeline is located inside the absorption tower and connected to the multiple spray heads. The water pump is located in the middle of the spray pipeline and is used to pump the absorbent from the solution pool to the spray heads. The water tank and the solution tank are both connected to the solution pool through an electromagnetic on / off valve and a flow meter, and are used to add water or solution to the solution pool to change the concentration of the absorbent.

[0009] In some embodiments of this utility model, when two dust removal modules are provided, the two dust removal modules are connected in parallel, and each dust removal module includes an electrostatic dust removal device and a bag dust removal device connected in series.

[0010] In some embodiments of this utility model, the cement production flue gas treatment system based on pipeline sensing further includes a sensor fixing assembly. The sensor fixing assembly includes an installation cylinder and a support pipe. The installation cylinder and the support pipe are fixedly connected and coaxially arranged. The diameter of the installation cylinder is larger than the diameter of the support pipe. The flue gas transmission pipeline has an installation hole for the installation cylinder, which is used to install the installation cylinder. The side wall of the support pipe has at least four sensor mounting holes for installing the temperature sensor, the first dust concentration sensor, the first CO2 concentration sensor, and the first SO2 concentration sensor.

[0011] In some embodiments of this utility model, the sensor fixing assembly further includes a plurality of handles, which are disposed on the side of the mounting cylinder away from the support tube, and the plurality of handles are arranged circumferentially along the side wall of the mounting cylinder.

[0012] In some embodiments of this utility model, the sensor fixing assembly further includes a sliding sleeve, a spring, and a plug; the sliding sleeve is fixedly disposed at the end of the support tube away from the mounting cylinder, the plug is slidably connected to the sliding sleeve, the spring is disposed inside the sliding sleeve and abuts against the plug, and is used to keep the plug pressed against the inner wall of the flue gas transmission pipe when the plug is in contact with the inner wall of the flue gas transmission pipe, and the outer contour of the end of the plug away from the sliding sleeve is the same as the shape of the inner wall of the flue gas transmission pipe.

[0013] In some embodiments of this utility model, the cement production flue gas treatment system based on pipeline sensing further includes a purging device, which is disposed inside the flue gas transmission pipeline and is used to clean the dust on the temperature sensor, the dust concentration sensor, the first CO2 concentration sensor and the first SO2 concentration sensor.

[0014] In some embodiments of this utility model, the first data acquisition module further includes a third dust concentration sensor, which is located upstream of the flue gas transmission duct and downstream of the first dust concentration sensor. The third dust concentration sensor is used to collect a third dust concentration. The third dust concentration sensor is connected to the processor module via wired or wireless connection and is used to transmit the third dust concentration to the processor module. If the difference between the third dust concentration and the first dust concentration is greater than a preset value, the processor module is used to issue a prompt to clean the flue gas transmission duct.

[0015] This utility model's cement production flue gas treatment system based on pipeline sensing can acquire the state of the flue gas flowing inside the flue gas transmission pipeline in real time, specifically including the concentration of dust, SO2, and CO2 in the flue gas. For flue gas in different states, the processor module can adjust the number of dust removal modules opened in the absorption tower and the concentration of absorbent liquid in the two spray modules accordingly, so that the absorption capacity of the absorption tower is adapted to the flue gas state, which can effectively purify and remove impurities from the flue gas and reduce the waste of energy and resources.

[0016] Additional advantages, objects, and features of this invention will be set forth in part in the description which follows, and will in part become apparent to those skilled in the art upon review of the description, or may be learned by practice of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures specifically pointed out in the description and drawings.

[0017] Those skilled in the art will understand that the objectives and advantages achievable with this invention are not limited to those specifically described above, and that the above and other objectives achievable with this invention will become clearer from the following detailed description. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute a limitation thereof. The components in the drawings are not drawn to scale but are merely for illustrating the principles of the present invention. For ease of illustration and description of certain parts of the present invention, corresponding portions in the drawings may be enlarged, i.e., may appear larger relative to other components in an exemplary device actually manufactured according to the present invention.

[0019] Figure 1 This is a block diagram of a cement production flue gas treatment system based on pipeline sensing in one embodiment of the present invention.

[0020] Figure 2This is a schematic diagram of the structure of the flue gas transmission pipeline and absorption tower in a cement production flue gas treatment system based on pipeline sensing, according to one embodiment of this utility model.

[0021] Figure 3 This is a front view of the sensor fixing assembly in one embodiment of the present invention.

[0022] Figure 4 This is a left view of the sensor fixing assembly in one embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the distribution structure of the sweeping and blowing device in one embodiment of the present invention.

[0024] Reference numerals: 1. First data acquisition module; 11. First dust concentration sensor; 12. First SO2 concentration sensor; 13. First CO2 concentration sensor; 2. Second data acquisition module; 21. Second dust concentration sensor; 22. Second SO2 concentration sensor; 23. Second CO2 concentration sensor; 3. Processor module; 4. Flue gas transmission pipeline; 5. Absorption tower; 51. First spray module; 511. Spray pipeline; 512. Spray head; 513. Water pump; 514. Water tank; 515. Solution tank; 516. Solution pool; 52. Dust removal module; 521. Electrostatic dust removal device; 522. Bag dust removal device; 53. Second spray module; 6. Alarm module; 61. Audible and visual alarm; 62. Temperature sensor; 7. Sensor fixing assembly; 71. Mounting cylinder; 72. Support tube; 73. Sensor mounting hole; 74. Handle; 75. Sliding sleeve; 76. Spring; 77. Plug; 8. Sweeping and blowing device. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0026] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0027] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps, or components.

[0028] It should also be noted that, unless otherwise specified, the term "connection" in this article can refer not only to a direct connection, but also to an indirect connection involving an intermediary.

[0029] In the following description, embodiments of the present invention will be illustrated with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar parts, or the same or similar steps.

[0030] To address the problem that the ability of existing absorption towers to absorb pollutants cannot be adjusted according to the flue gas state, this utility model proposes a cement production flue gas treatment system based on pipeline sensing. This system can monitor the pollutant content in real time and dynamically adjust the absorption tower's ability to absorb pollutants based on the pollutant content. It can not only treat flue gas in different states but also reduce the waste of resources and energy within the absorption tower.

[0031] Reference Figure 1 and Figure 2 This utility model provides a cement production flue gas treatment system based on pipeline sensing, including a first data acquisition module 1, a processor module 3, a flue gas transmission pipeline 4, and an absorption tower 5.

[0032] The first data acquisition module 1 is installed inside the flue gas transmission duct 4. The first data acquisition module 1 includes a first dust concentration sensor 11, a first SO2 concentration sensor 12, and a first CO2 concentration sensor 13. The first data acquisition module 1 is used to collect the first dust concentration, the first SO2 concentration, and the first CO2 concentration of the flue gas inside the flue gas transmission duct 4. The first data acquisition module 1 is connected to the processor module 3 by wired or wireless means and is used to transmit the first dust concentration, the first SO2 concentration, and the first CO2 concentration to the processor module 3. The first data acquisition module 1 realizes dynamic monitoring of pollutant concentrations inside the duct through the combination of dust, SO, and CO multi-parameter sensors, and can obtain the concentrations of various pollutants in real time.

[0033] The end of the flue gas transmission pipe 4 is connected to the absorption tower 5, which includes multiple dust removal modules 52, a first spray module 51, and a second spray module 53. The dust removal modules 52, the first spray module 51, and the second spray module 53 are all connected to the processor module 3 by wire or wireless means. The dust removal modules 52, the first spray module 51, and the second spray module 53 are controlled by the processor module 3. Based on the content of pollutants, the processor module 3 adjusts the decontamination capacity of each module to save energy while ensuring sufficient decontamination.

[0034] Processor module 3 determines the number of dust removal modules 52 to be activated based on a first dust concentration. When the first dust concentration is low, fewer dust removal modules 52 are activated; when the first dust concentration is high, more dust removal modules 52 are activated. This not only achieves dust treatment but also avoids energy waste when all dust removal modules 52 are activated. Processor module 3 also determines the concentration of the SO2 absorbent sprayed by the first spray module 51 based on a first SO2 concentration. The first spray module 51 adjusts the concentration of the calcium-based or ammonia-based absorbent according to the SO2 concentration. Processor module 3 further determines the concentration of the CO2 absorbent sprayed by the second spray module 53 based on a first CO2 concentration. The second spray module 53 uses an alkaline solution to absorb CO, generating recyclable carbonate byproducts. Processor module 3 can dynamically adjust dust removal and spray parameters based on real-time data, effectively absorbing gaseous pollutants while preventing excessive use of absorbent. It can also add a gas-liquid separation device within the spray tower to reduce the problem of liquid droplets entrained in the flue gas.

[0035] Reference Figure 2 The flue gas enters through the flue gas transmission pipe 4 on the left side of the absorption tower 5. The flue gas transmission pipe 4 splits into two branches at the connection point with the dust removal module 52, and is connected to the two dust removal modules 52 respectively. The opening and closing of the branch pipes are controlled by valves. After passing through the dust removal module 52, the flue gas enters the first spray module 51 through the connecting pipe on the right side of the absorption tower 5. The flue gas treated by the first spray module 51 enters the second spray module 53 through another connecting pipe on the right side of the absorption tower 5, and is finally discharged from the top of the absorption tower 5.

[0036] Compared to flue gas transmission pipelines without a first data acquisition module 1, the flue gas treatment system in this embodiment can acquire the state of the flue gas flowing inside the flue gas transmission pipeline in real time, specifically including the concentrations of dust, SO2, and CO2 in the flue gas. For flue gas in different states, the processor module 3 can adjust the number of dust removal modules opened in the absorption tower 5 and the concentration of the absorbent liquid in the two spray modules accordingly, so that the absorption capacity of the absorption tower 5 is adapted to the flue gas state, which can effectively purify and remove impurities from the flue gas and reduce the waste of energy and resources.

[0037] In some embodiments, the cement production flue gas treatment system based on pipeline sensing further includes a second data acquisition module 2. The second data acquisition module 2 is located at the outlet end of the absorption tower 5. The second data acquisition module 2 includes a second dust concentration sensor 21, a second SO2 concentration sensor 22, and a second CO2 concentration sensor 23. The second data acquisition module 2 is used to collect the second dust concentration, the second SO2 concentration, and the second CO2 concentration of the flue gas discharged from the absorption tower 5. The second data acquisition module 2 is connected to the processor module 3 by wire or wireless means and is used to transmit the second dust concentration, the second SO2 concentration, and the second CO2 concentration data to the processor module 3 to determine whether the flue gas discharged from the outlet end of the absorption tower 5 meets the standards.

[0038] In the above embodiment, the processor module 3 dynamically verifies the efficiency of the dust removal module 52 and the two spray modules by comparing the pollutant concentration difference between the inlet (first data acquisition module 1) and the outlet (second data acquisition module 2), thereby achieving early warning and real-time calibration for exceeding emission standards. When the pollutant concentration monitored by the second data acquisition module 2 exceeds the set threshold, the processor module 3 reversely adjusts the dosage of absorbent liquid in the two spray modules or increases the concentration of absorbent liquid, or increases the number of dust removal modules 52 that are turned on, forming a "detection-adjustment-re-detection" closed loop to prevent excessive flue gas emissions or prolonged high-load operation of the absorption tower.

[0039] In some embodiments, the cement production flue gas treatment system based on pipeline sensing further includes an alarm module 6. The alarm module 6 includes an audible and visual alarm 61 and a temperature sensor 62. The audible and visual alarm 61 is located in the central control room, and the temperature sensor 62 is located inside the flue gas transmission duct 4. Both the audible and visual alarm 61 and the temperature sensor 62 are connected to the processor module 3 via wired or wireless connection. When the temperature sensor 62 detects that the temperature inside the flue gas transmission duct 4 exceeds a safe temperature, the processor module 3 controls the audible and visual alarm 61 to issue an audible and visual alarm. The temperature sensor 62 can monitor the flue gas temperature in real time, with an accuracy selectable to ±1.5℃. When the temperature exceeds a preset safe temperature, the processor module 3 immediately triggers the audible and visual alarm 61, improving the response speed of maintenance personnel, preventing catalyst sintering or equipment damage caused by high temperatures, and enhancing safety.

[0040] In some embodiments, refer to Figure 2An isolation plate is provided between the first spray module 51 and the second spray module 53 to separate the two spray modules. Both the first spray module 51 and the second spray module 53 include a spray pipe 511, multiple spray heads 512, a water pump 513, a water tank 514, and a solution tank 515. The bottom of the spray pipe 511 is connected to the solution pool 516 at the bottom of the absorption tower 5, and the top of the spray pipe 511 is located inside the absorption tower 5 and connected to the multiple spray heads 512. One or more spray heads 512 can be installed to ensure sufficient contact between the flue gas and the absorbent liquid. A water pump 513 is located in the middle of the spray pipe 511, used to pump the absorbent from the solution tank 516 to the spray head 512. Both the water tank 514 and the solution tank 515 are connected to the solution tank 516 via electromagnetic on / off valves and flow meters, used to add water or solution to the solution tank 516 to change the concentration of the absorbent. The electromagnetic on / off valves and flow meters are connected in series. The electromagnetic on / off valves control the connection or disconnection between the water tank 514 or solution tank 515 and the solution tank 516, while the flow meters monitor the volume of water or solution injected into the solution tank 516, thereby controlling the concentration of the absorbent in the solution tank 516. Dynamically adjusting the liquid addition ratio in the water tank 514 and solution tank 515 via electromagnetic on / off valves improves the accuracy of solution concentration control. It should be noted that a concentration sensor is installed in the solution tank 516 to monitor the solution concentration in real time, preventing excessive addition of solution to the solution tank 515. The 514 water tank also serves to cool the water, quickly diluting the concentration of the absorbent in the event of a sudden high temperature to prevent scaling or overheating of the equipment.

[0041] In some embodiments, when two dust removal modules 52 are provided, the two dust removal modules 52 are connected in parallel. Each dust removal module 52 includes an electrostatic precipitator 521 and a bag filter 522 connected in series. The electrostatic precipitator 521, as a pretreatment unit, can quickly capture more than 80% of coarse particles (particle size > 10 μm) in the smoke and dust, effectively reducing the dust load on the subsequent bag filter 522. The bag filter 522, relying on the interception mechanism of the fiber filter media, achieves a collection efficiency of over 99% for ultrafine particles (0.1-1 μm) such as PM2.5. (Refer to...) Figure 2 There are two dust removal modules 52, and the electrostatic dust collector 521 and the bag filter 522 are connected by a pipe. When the dust concentration detected by the first dust concentration sensor 11 is low, only one dust removal module 52 can be turned on; when the dust concentration detected by the first dust concentration sensor 11 is high, both dust removal modules 52 can be turned on.

[0042] In some embodiments, refer to Figure 3The cement production flue gas treatment system based on pipeline sensing also includes a sensor fixing assembly 7. The sensor fixing assembly 7 includes an installation cylinder 71 and a support pipe 72. The installation cylinder 71 and the support pipe 72 are fixedly connected and coaxially arranged. The diameter of the installation cylinder 71 is larger than the diameter of the support pipe 72. The outer surface of the installation cylinder 71 has external threads. The flue gas transmission pipeline 4 has an installation hole for the installation cylinder. The installation hole has internal threads and is used to install the installation cylinder 71. The threaded connection facilitates quick replacement of the sensor fixing assembly 7. The side wall of the support pipe 72 has at least four sensor mounting holes 73 for installing a temperature sensor 62, a first dust concentration sensor 11, a first CO2 concentration sensor 13, and a first SO2 concentration sensor 12. The sensor mounting holes 73 can be threadedly connected to each sensor.

[0043] In some embodiments, refer to Figure 4 The sensor fixing assembly 7 also includes multiple handles 74, which are located on the side of the mounting cylinder 71 away from the support tube 72 and are arranged circumferentially along the side wall of the mounting cylinder 71. The handles 74 facilitate the gripping and application of force by the operator, and facilitate the assembly and disassembly of the sensor fixing assembly 7.

[0044] In some embodiments, the sensor fixing assembly 7 further includes a sliding sleeve 75, a spring 76, and a plug 77. The sliding sleeve 75 is fixedly disposed at the end of the support tube 72 away from the mounting cylinder 71. The plug 77 is slidably connected to the sliding sleeve 75. The spring 76 is disposed within the sliding sleeve 75 and abuts against the plug 77. When the plug 77 is in contact with the inner wall of the flue gas transmission pipe 4, it keeps the plug 77 pressed against the inner wall of the flue gas transmission pipe 4. The outer contour of the end of the plug 77 away from the sliding sleeve 75 is the same shape as the inner wall of the flue gas transmission pipe 4. Under the continuous elastic force of the spring 76, it can adapt to slight deformation of the pipe or unevenness of the inner wall. After the plug 77 contacts the inner wall of the flue gas transmission pipe 4, the inner wall of the flue gas transmission pipe 4 provides support and friction to the plug 77, preventing the sensor fixing assembly 7 from collapsing or deforming under the influence of gravity and the impact of flue gas.

[0045] In some embodiments, refer to Figure 5 The cement production flue gas treatment system based on pipeline sensing also includes a purging device 8. The purging device 8 is installed inside the flue gas transmission pipeline 4 to clean dust from the temperature sensor 62, dust concentration sensor, first CO2 concentration sensor 13, and first SO2 concentration sensor 12, preventing dust accumulation on the sensors and affecting their normal operation. Four purging devices 8 can be installed, distributed on the left and right sides of the sensor fixing assembly 7, to thoroughly blow away accumulated dust from the sensors.

[0046] In some embodiments, the first data acquisition module 1 further includes a third dust concentration sensor. The third dust concentration sensor is located upstream of the flue gas transmission duct 4, and the first dust concentration sensor 11 is located downstream of the flue gas transmission duct 4. The third dust concentration sensor is used to collect the third dust concentration. The third dust concentration sensor is connected to the processor module 3 via wired or wireless connection and is used to transmit the third dust concentration to the processor module 3. If the difference between the third dust concentration and the first dust concentration is greater than a preset value, the processor module 3 is used to issue a prompt to clean the flue gas transmission duct 4. Under normal circumstances, the dust concentration is roughly the same at various points inside the flue gas transmission duct 4. When dust settles or accumulates at a certain point in the flue gas transmission duct 4, the dust concentration downstream of the accumulation point will decrease. By collecting the difference in flue gas concentration at different points by the third dust concentration sensor and the first dust concentration sensor 11, it can be determined whether dust accumulation has occurred in the flue gas transmission duct 4. The processor module 3 can issue a prompt to facilitate timely detection of dust accumulation.

[0047] It should be clarified that this utility model is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this utility model is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this utility model.

[0048] In this invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or in place of features of other embodiments.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cement production flue gas treatment system based on pipeline sensing, characterized in that, It includes a first data acquisition module (1), a processor module (3), a flue gas transmission pipeline (4), and an absorption tower (5); The first data acquisition module (1) is located inside the flue gas transmission pipe (4). The first data acquisition module (1) includes a first dust concentration sensor (11), a first SO2 concentration sensor (12), and a first CO2 concentration sensor (13). The first data acquisition module (1) is used to collect the first dust concentration, the first SO2 concentration, and the first CO2 concentration of the flue gas inside the flue gas transmission pipe (4). The first data acquisition module (1) is connected to the processor module (3) by wire or wireless means and is used to transmit the first dust concentration, the first SO2 concentration, and the first CO2 concentration to the processor module (3). The end of the flue gas transmission pipe (4) is connected to the absorption tower (5), which includes multiple dust removal modules (52), a first spray module (51) and a second spray module (53); the dust removal module (52), the first spray module (51) and the second spray module (53) are all wired or wirelessly connected to the processor module (3). The processor module (3) is used to determine the number of dust removal modules (52) to be turned on based on the first dust concentration; the processor module (3) is used to determine the concentration of SO2 absorption liquid sprayed by the first spray module (51) based on the first SO2 concentration; the processor module (3) is used to determine the concentration of CO2 absorption liquid sprayed by the second spray module (53) based on the first CO2 concentration.

2. The cement production flue gas treatment system based on pipeline sensing according to claim 1, characterized in that, The cement production flue gas treatment system based on pipeline sensing also includes a second data acquisition module (2), which is located at the outlet end of the absorption tower (5). The second data acquisition module (2) includes a second dust concentration sensor (21), a second SO2 concentration sensor (22), and a second CO2 concentration sensor (23). The second data acquisition module (2) is used to collect the second dust concentration, the second SO2 concentration and the second CO2 concentration of the flue gas discharged from the absorption tower (5). The second data acquisition module (2) is connected to the processor module (3) by wire or wireless means and is used to transmit the second dust concentration, the second SO2 concentration and the second CO2 concentration to the processor module (3) to determine whether the flue gas discharged from the outlet of the absorption tower (5) meets the standards.

3. The cement production flue gas treatment system based on pipeline sensing according to claim 1, characterized in that, The cement production flue gas treatment system based on pipeline sensing also includes an alarm module (6); The alarm module (6) includes an audible and visual alarm (61) and a temperature sensor (62). The audible and visual alarm (61) is located in the central control room, and the temperature sensor (62) is located inside the flue gas transmission duct (4). Both the audible and visual alarm (61) and the temperature sensor (62) are wired or wirelessly connected to the processor module (3). When the temperature sensor (62) detects that the temperature inside the flue gas transmission duct (4) is greater than the safe temperature, the processor module (3) controls the audible and visual alarm (61) to issue an audible and visual alarm.

4. The cement production flue gas treatment system based on pipeline sensing according to claim 1, characterized in that, Both the first spray module (51) and the second spray module (53) include a spray pipeline (511), multiple spray heads (512), a water pump (513), a water tank (514), and a solution tank (515); The bottom of the spray pipe (511) is connected to the solution pool (516) at the bottom of the absorption tower (5). The top of the spray pipe (511) is located inside the absorption tower (5) and connected to multiple spray heads (512). The water pump (513) is located in the middle of the spray pipe (511) and is used to pump the absorbent liquid from the solution pool (516) to the spray head (512). The water tank (514) and the solution tank (515) are both connected to the solution pool (516) through electromagnetic on / off valves and flow meters, and are used to add water or solution to the solution pool (516) to change the concentration of the absorbent liquid.

5. The cement production flue gas treatment system based on pipeline sensing according to claim 1, characterized in that, When there are two dust removal modules (52), the two dust removal modules (52) are connected in parallel. Each dust removal module (52) includes an electrostatic dust removal device (521) and a bag dust removal device (522) connected in series.

6. The cement production flue gas treatment system based on pipeline sensing according to claim 3, characterized in that, The cement production flue gas treatment system based on pipeline sensing also includes a sensor fixing assembly (7), which includes an installation cylinder (71) and a support pipe (72). The installation cylinder (71) and the support pipe (72) are fixedly connected and coaxially arranged. The diameter of the installation cylinder (71) is larger than the diameter of the support pipe (72). The flue gas transmission pipeline (4) has an installation hole for the installation cylinder, which is used to install the installation cylinder (71). The side wall of the support pipe (72) has at least four sensor mounting holes (73) for installing the temperature sensor (62), the first dust concentration sensor (11), the first CO2 concentration sensor (13), and the first SO2 concentration sensor (12).

7. The cement production flue gas treatment system based on pipeline sensing according to claim 6, characterized in that, The sensor fixing assembly (7) also includes a plurality of handles (74), which are disposed on the side of the mounting cylinder (71) away from the support tube (72), and the plurality of handles (74) are arranged circumferentially along the side wall of the mounting cylinder (71).

8. The cement production flue gas treatment system based on pipeline sensing according to claim 7, characterized in that, The sensor fixing assembly (7) further includes a sliding sleeve (75), a spring (76), and a plug (77); the sliding sleeve (75) is fixedly disposed at one end of the support tube (72) away from the mounting cylinder (71), the plug (77) is slidably connected to the sliding sleeve (75), the spring (76) is disposed inside the sliding sleeve (75) and abuts against the plug (77), and is used to keep the plug (77) pressed against the inner wall of the flue gas transmission pipe (4) when the plug (77) is in contact with the inner wall of the flue gas transmission pipe (4), and the outer contour of the end of the plug (77) away from the sliding sleeve (75) is the same as the shape of the inner wall of the flue gas transmission pipe (4).

9. The cement production flue gas treatment system based on pipeline sensing according to claim 6, characterized in that, The cement production flue gas treatment system based on pipeline sensing also includes a sweeping device (8), which is installed inside the flue gas transmission pipeline (4) and is used to clean the dust on the temperature sensor (62), the dust concentration sensor, the first CO2 concentration sensor (13) and the first SO2 concentration sensor (12).

10. The cement production flue gas treatment system based on pipeline sensing according to claim 2, characterized in that, The first data acquisition module (1) further includes a third dust concentration sensor, which is located upstream of the flue gas transmission pipe (4) and the first dust concentration sensor (11) is located downstream of the flue gas transmission pipe (4). The third dust concentration sensor is used to collect the third dust concentration. The third dust concentration sensor is connected to the processor module (3) by wire or wireless means and is used to transmit the third dust concentration to the processor module (3). If the difference between the third dust concentration and the first dust concentration is greater than a preset value, the processor module (3) is used to issue a prompt to clean the flue gas transmission pipe (4).

Images