Dedusting and sweeping integrated technical device and working method thereof

Abstract

The invention discloses a dedusting and sweeping integrated technical device and a working method thereof, and the dedusting and sweeping integrated technical device is characterized in that a dedusting and sweeping shared purification chamber is used for discharging purified gas; the air path switching module can switch the special dust removal fan or the special cleaning fan to be communicated or disconnected with the air outlet of the dust removal and cleaning shared purification chamber; during dust removal, the control module controls the air path switching module to enable the special dust removal fan to be communicated with an air outlet of the dust removal and sweeping shared purification chamber, and the special dust removal fan generates low negative pressure to enable the dust removal and sweeping shared purification chamber to suck suspended dust for purification and dust removal; in the sweeping mode, the control module controls the air path switching module to enable the special sweeping fan to be communicated with the air outlet of the dust removal and sweeping shared purification chamber, the special sweeping fan generates high negative pressure to enable the dust removal and sweeping shared purification chamber to suck settled dust for purification and sweeping, and integration of dust removal and sweeping is achieved; not only is the overall occupied space of the device effectively reduced, but also the modes can be automatically switched according to needs, so that the two modes are ensured to cooperate with each other and do not interfere with each other.

Description

Technical Field

[0001] This invention relates to the field of industrial dust control technology, and in particular to a technical device and its working method that integrates source dust removal and post-production area cleaning functions during the production process. Background Technology

[0002] In current industrial dust control, central dust collection systems and central vacuum cleaning systems are two independent and parallel systems. Central dust collection systems are primarily responsible for initial and ongoing control of newly generated suspended dust at dust-generating points (such as crushing, feeding, and cutting) during production. Their technical characteristics include high air volume, low negative pressure, large pipe diameter, and a larger filtration area. Central vacuum cleaning systems, on the other hand, are responsible for post-dust cleaning of dust that has settled on the ground and equipment surfaces. Their technical characteristics include high negative pressure, low air volume, high air velocity within the pipes, and a smaller pipe diameter.

[0003] Because these two systems differ fundamentally in their core functions, operating parameters (airflow, negative pressure), operating modes (continuous / intermittent), and the state of the dust they handle (suspended / settled), they have long been designed, installed, and operated as two independent pieces of equipment. This approach has led to the following prominent problems: 1. Equipment redundancy and high cost: It requires the purchase, installation and maintenance of two independent systems, including fans, filters, piping networks and control systems, resulting in high initial investment and long-term operation and maintenance costs.

[0004] 2. Large space occupation: The main unit, filter unit and ash conveying device of the two systems require a large amount of factory space, which is difficult to arrange for workshops with limited space.

[0005] 3. Low energy efficiency: The two systems operate independently and cannot effectively allocate energy according to the working conditions. In particular, the energy utilization rate is low when operating at non-full load.

[0006] 4. Poor system coordination: Although the functions are complementary, there is a lack of intelligent linkage between independent systems, and the phenomenon of information silos is serious, making it impossible to achieve optimal control based on a global dust control strategy.

[0007] Currently, the industry lacks an integrated equipment and design methodology that can effectively integrate the core functions of these two systems and solve the aforementioned technical challenges. The fundamental reason is that integrating a high-volume, low-negative-pressure dust removal system with a low-volume, high-negative-pressure cleaning system faces the following technical biases and practical obstacles: 1. Difficulty in matching parameters: The requirements for system air volume and negative pressure differ greatly between the two operating conditions. Sharing a set of filter units may lead to a serious decrease in efficiency under either operating condition.

[0008] 2. Filtration adaptability challenges: Dust removal processes suspended fine powder (i.e., particles with small diameters), while cleaning and collecting settled particles (which may contain larger debris). This places different requirements on the filter media, cleaning methods, and structural strength of the filter unit.

[0009] 3. System interference risk: If the two sets of pipelines are simply connected in parallel, they are very likely to interfere with each other during switching or operation, resulting in problems such as airflow short circuit and insufficient suction.

[0010] Therefore, the research direction of this invention is to provide a new device and method that can overcome the aforementioned technical biases and integration obstacles, and achieve integrated dust removal and cleaning. This not only effectively reduces the overall space occupied by the device, but also automatically switches modes according to the required working conditions, thereby ensuring that the two modes work together without interfering with each other, and achieving continuous operation with cost reduction, energy saving, intelligence and intensification. Summary of the Invention

[0011] To address the problems existing in the prior art, this invention provides an integrated dust removal and cleaning technology device and its working method. By sharing a dust removal and cleaning cleanroom in different modes and combining intelligent switching control, dust removal and cleaning are integrated. This not only effectively reduces the overall space occupied by the device, but also automatically switches modes according to the required working conditions, thereby ensuring that the two modes work together without interfering with each other, achieving cost reduction, energy saving, intelligence and intensive continuous operation.

[0012] To achieve the above objectives, the technical solution adopted by the present invention is: an integrated dust removal and cleaning technology device, including a shared dust removal and cleaning purification chamber, an air path switching module, a cleaning-specific fan, a cleaning pipeline, a dust removal-specific fan, a dust removal pipeline, and a control module.

[0013] The shared purification chamber for dust removal and cleaning is equipped with a filter structure and has an air inlet and an air outlet on its surface, which are used to purify and remove dust from the air entering through the air inlet and then discharge it through the air outlet.

[0014] The air path switching module is installed at the air outlet of the shared cleanroom for dust removal and cleaning, and is connected to one end of the cleaning pipe and one end of the dust removal pipe respectively. The other end of the cleaning pipe and the other end of the dust removal pipe are connected to the cleaning fan and the dust removal fan respectively. The air path switching module can switch the connection or disconnection between the cleaning pipe or the dust removal pipe and the air outlet of the shared cleanroom for dust removal and cleaning.

[0015] The control module is connected to the air path switching module, the cleaning fan, and the dust removal fan. In dust removal mode, the control module controls the air path switching module to connect the dust removal pipeline and the dust removal fan to the outlet of the shared cleanroom for dust removal and cleaning. It also activates the dust removal fan to create a low negative pressure inside the shared cleanroom, allowing the air inlet of the cleanroom to draw in suspended dust from the surrounding environment. The purified gas is then discharged to the surrounding environment through the dust removal pipeline and the dust removal fan. In cleaning mode, the control module controls the air path switching module to connect the cleaning pipeline and the cleaning fan to the outlet of the shared cleanroom for dust removal and cleaning. It also activates the cleaning fan to create a high negative pressure inside the shared cleanroom, allowing the air inlet of the cleanroom to draw in settled dust from the surrounding environment. The purified gas is then discharged to the surrounding environment through the cleaning pipeline and the cleaning fan.

[0016] Furthermore, it also includes at least one dedicated dust collection chamber. This chamber is equipped with a filter structure and has an air inlet and outlet on its surface. The outlet of the dedicated dust collection chamber is connected to the dust collection pipeline via a three-way pipe. During dust collection mode, a dedicated dust collection fan creates a low negative pressure within the dedicated dust collection chamber, drawing in suspended dust from the environment through the inlet. The purified air then merges with the purified air from the shared dust collection chamber via the three-way pipe within the dust collection pipeline before being discharged into the environment by the dedicated dust collection fan. This method increases the required airflow and dust collection area during dust collection mode, thereby ensuring the dust collection efficiency.

[0017] Furthermore, the filtration structure can be either a dry filtration structure or a wet filtration structure. Both of these existing structures can achieve dust removal effects; the specific choice depends on the actual situation.

[0018] Furthermore, each of the cleaning and dust removal pipelines is equipped with an electric air valve near the air path switching module. These electric air valves are connected to the control module, which controls the connection or disconnection of the cleaning or dust removal pipeline with the air path switching module via the electric air valves. This design ensures that the dust removal pipeline is closed during cleaning mode and the cleaning pipeline is closed during dust removal mode, preventing interference between the two modes and improving the operational stability of each mode.

[0019] Furthermore, the pneumatic switching module is a three-way solenoid valve. Multiple electric butterfly valves can also be used in combination, but a three-way solenoid valve is preferred for ease of control and switching.

[0020] Furthermore, the diameter of the cleaning pipeline is smaller than that of the dust removal pipeline; the negative pressure generated by the cleaning fan is greater than that generated by the dust removal fan. This ensures the effectiveness of both the cleaning and dust removal modes.

[0021] The working method of the above-mentioned integrated dust removal and cleaning technology device includes the following steps: Step 1: Determine the device composition: The filtration capacity of the shared cleanroom for dust removal and cleaning must meet the required cleaning airflow Q in cleaning mode. 清 And determine the required dust removal air volume Q in the dust removal mode. 除 If Q 除 ≈Q 清 When the required dust removal environment space is small, the dust removal and purification section of the device consists only of a shared dust removal and cleaning cleanroom; if Q 除 Q 清 In order to reduce the load on a single cleanroom and optimize system resistance, the dust removal and purification section of the device consists of a shared dust removal and cleaning cleanroom and at least one dedicated dust removal chamber.

[0022] Step 2: Determine the performance of the dust removal fan and the cleaning fan: The maximum air volume and maximum negative pressure generated by the dust removal fan must be greater than the operating point (Q). 除 ,P 除 ), where P 除 The total resistance of the dedicated dust removal cleanroom, the shared dust removal and cleaning cleanroom, and the dust removal pipeline; Q 除 The required dust removal air volume Q at the current operating point 除 .

[0023] The maximum air volume and maximum negative pressure generated by the cleaning-specific blower must be greater than the operating point (Q). 清 ,P 清 ), where Q 清 The required cleaning air volume Q at the current operating point 清 ;P 清 The determination of the pressure must take into account the most unfavorable operating conditions, and its total pressure must meet the following requirements: P 清 ≥ΔP 清扫 +ΔP 共享净化室 +ΔP 泄漏 Where, ΔP 清扫 To clear the resistance in the pipeline; ΔP 共享净化室 Resistance to dust removal and cleaning of the shared cleanroom; ΔP 泄漏 The performance safety margin is set to deal with the possibility of minute leakage after the dust removal pipeline is closed, ensuring that the cleaning negative pressure is not affected and the fan operating point is stable.

[0024] Step 3: Determine the operating parameters of the filter structure: A. If the filter structure is a dry filter structure, its total filter area must meet the load of both the cleaning mode and the dust removal mode; and its cleaning cycle must be set.

[0025] B. If the filter structure is a wet filter structure, first determine the calculation model, and adaptively adjust the liquid-to-gas ratio of the wet filter structure according to the cleaning mode and dust removal mode to achieve the optimal dust removal performance in the corresponding mode.

[0026] Step 4, Dust Removal Mode: After completing the preset steps one through three, deploy the device to the required dust removal environment. During dust removal, the control module issues a command to close the electric air valve in the cleaning pipeline to prevent the large volume of dust removal air from being diverted to the cleaning pipeline, ensuring that the air volume is concentrated on the production dust removal point. After confirming that the electric air valve in the cleaning pipeline is closed, the control module controls the air path switching module to connect the dust removal pipeline and the dedicated dust removal fan to the air outlet of the shared cleanroom for dust removal and cleaning, and opens the dedicated dust removal fan and the electric air valve in the dust removal pipeline to create a low negative pressure inside the shared cleanroom for dust removal and cleaning. This allows the air inlet of the shared cleanroom for dust removal and cleaning to draw in suspended dust from the surrounding environment, and the purified gas is discharged to the surrounding environment through the dust removal pipeline and the dedicated dust removal fan; thus achieving the dust removal work for the surrounding environment.

[0027] Step 5, Cleaning Mode: During cleaning, the control module issues a command to close the electric air valve and the dedicated dust removal fan in the dust removal pipeline. This prevents the high negative pressure of the dedicated cleaning fan from being consumed by leaks and ineffective suction in the dust removal pipeline, ensuring that all suction power is used for cleaning. After confirming that the electric air valve in the dust removal pipeline is closed, the control module controls the air path switching module to connect the cleaning pipeline and the dedicated cleaning fan to the air outlet of the shared cleanroom for dust removal and cleaning. It then opens the dedicated cleaning fan and the electric air valve in the cleaning pipeline, creating a high negative pressure inside the shared cleanroom for dust removal and cleaning. This causes the air inlet of the shared cleanroom to draw in settled dust from the surrounding environment. The purified and dust-removed gas is then discharged into the surrounding environment through the cleaning pipeline and the dedicated cleaning fan, thus achieving the cleaning of the surrounding environment.

[0028] Furthermore, the total filtration area in step A meets the load requirements of both the cleaning mode and the dust removal mode, as specified in the formula: A total ≥max(Q 除 / v 除尘 Q 清 / v 清扫 ) Among them, v 除尘 and v 清扫 These are the required filtration speeds for dust removal and cleaning modes, respectively.

[0029] The dust removal cycle is dynamically triggered based on real-time dust load, and the triggering conditions are: ΔP 过滤 ≥ΔP 初始 +αL(t) Wherein, dust load L(t) ≈ ΣC n *Qn *Δt;ΔP 过滤 The real-time measured pressure difference (Pa) in the shared cleanroom for dust removal and cleaning; ΔP 初始 The initial resistance (Pa) of the clean filter media is given by α, which is the dust load resistance coefficient (Pa / g), calibrated experimentally; L(t) is the real-time dust load (g), i.e., the mass of dust accumulated since the last cleaning cycle; C n Q represents the average dust concentration (g / m³) during the nth sampling period; n Δt represents the average processing air volume (m³ / h) during the nth sampling period; Δt represents the sampling time interval (h).

[0030] Furthermore, in step B, the liquid-to-gas ratio of the wet filter structure is adaptively adjusted according to the cleaning mode and dust removal mode, specifically as follows: I. Before the device starts operating, set the optimal theoretical liquid-to-gas ratio design value. The specific formula is as follows: Where: (L / G) set The theoretically optimal liquid-to-gas ratio (L / m) was set. 3 ); it serves as the output, a parameter used to guide the operation of the wet filter structure; f(d p ) is the particle size distribution frequency function of the target dust (m -1 As an input, it is determined by the working mode: in dust removal mode, the input is the fine particulate matter particle size distribution f(d). p ) 除 In cleaning mode, input the particle size distribution f(d) of coarse particles. p ) 清 η target (d) p ) for particle size d p The target capture efficiency of the particles; set as a constant (e.g., 99%), or set as a function related to particle size as required by regulations; η c (d) p For a single droplet with a particle size d p The collision efficiency of the particles is calculated using theoretical models (such as the Langmuir formula); K: system characteristic constant; this is a comprehensive constant that includes the influence of inherent factors such as droplet diameter, gas velocity, and dust collector structure. This constant needs to be calibrated based on experimental data from a specific device; d min and d max These represent the minimum and maximum particle sizes of dust particles in the environment.

[0031] II. During the operation of the device, the optimal liquid-to-gas ratio design value is corrected, specifically as follows: The optimal liquid-to-gas ratio was determined as a function of dust removal efficiency for different particle size ranges, and then the form of the function was determined through regression analysis: (L / G) 经验 =f(η(d) p )) Wherein, η(d) p () represents the actual measured purification efficiency of dust within the target particle size range.

[0032] When switching modes, the control module automatically calls the calculation model for this step, based on the typical dust particle size distribution in the current mode (where the dust removal mode corresponds to the fine particulate matter distribution f(d)). p ) 除 The cleaning mode corresponds to the coarse particulate matter distribution f(d) p ) 清 The system calculates and sets a new optimal liquid-gas ratio in real time to replace the optimal theoretical liquid-gas ratio design value determined in step I. Then, the control module controls the liquid flow rate L by adjusting the speed of the circulating water pump of the wet filter structure, and controls the gas flow rate G by adjusting the frequency of the fan corresponding to the current mode, thereby enabling the wet filter structure to continuously maintain the optimal liquid-gas ratio calculated.

[0033] Compared with the prior art, the present invention has the following advantages: 1. Creative integration and cost reduction: This invention combines the core filtration functions of the existing two independent dust removal and cleaning systems into one, that is, the two modes of cleaning and dust removal share the same dust removal and cleaning cleanroom, saving the repeated investment in filter units, housings and foundations, and significantly reducing the initial equipment cost and long-term operation and maintenance cost.

[0034] 2. Space saving: This invention significantly reduces the equipment's footprint by integrating dust removal and cleaning, making it more suitable for renovation projects or new factory buildings with limited space.

[0035] 3. Significantly improved intelligence and reliability: The invention uses a control module to achieve centralized monitoring and intelligent switching. Through the isolation of the air valve and the coordinated interlocking design of the air path switching in different modes, the possibility of interference between modes is physically eliminated, achieving seamless, stable and reliable operation.

[0036] 4. Energy efficiency optimization: The control module of this invention can dynamically adjust the operating status of the fan in different modes according to the actual working conditions, so as to achieve optimal working efficiency and avoid energy waste.

[0037] 5. Easy maintenance: Since this invention is an integrated cleaning and dust removal device, maintenance personnel only need to be familiar with one system, and the types of spare parts are uniform, which reduces the complexity of operation and maintenance and long-term maintenance costs. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the shared cleanroom and dedicated dust removal room in this invention.

[0039] Figure 2 This is a schematic diagram of the overall layout of the present invention.

[0040] Figure 3 This is a schematic diagram of a wet filtration structure used in an embodiment of the present invention.

[0041] In the diagram: 1-Dedicated cleaning fan, 2-Air outlet of shared dust removal and cleaning chamber, 3-Shared dust removal and cleaning chamber, 4-Air path switching module, 5-Dedicated dust removal chamber, 6-Air outlet of dedicated dust removal chamber, 7-T-shaped pipe, 8-Dedicated dust removal fan, 9-Electric air valve, 10-Air inlet of shared dust removal and cleaning chamber, 11-Air inlet of dedicated dust removal chamber. Detailed Implementation

[0042] The present invention will be further described below.

[0043] like Figure 1 and 2 As shown, an integrated dust removal and cleaning technology device includes a shared dust removal and cleaning purification chamber 3, an air path switching module 4, a cleaning-specific fan 1, cleaning pipelines, a dust removal-specific fan 8, dust removal pipelines, and a control module.

[0044] The dust removal and cleaning shared purification chamber 3 is equipped with a filter structure inside and an air inlet and an air outlet on its surface, which are used to purify and remove dust from the gas entering through the air inlet and then discharge it through the air outlet.

[0045] The air path switching module 4 is installed at the air outlet 2 of the shared cleanroom for dust removal and cleaning, and is connected to one end of the cleaning pipe and one end of the dust removal pipe respectively. The other end of the cleaning pipe and the other end of the dust removal pipe are connected to the cleaning fan 1 and the dust removal fan 8 respectively. The air path switching module 4 can switch the connection or disconnection between the cleaning pipe or the dust removal pipe and the air outlet 2 of the shared cleanroom for dust removal and cleaning.

[0046] The control module is connected to the air path switching module 4, the cleaning fan 1, and the dust removal fan 8. In dust removal mode, the control module controls the air path switching module 4 to connect the dust removal pipeline and the dust removal fan 8 to the air outlet 2 of the shared cleanroom for dust removal and cleaning, and turns on the dust removal fan 8 to create a low negative pressure inside the shared cleanroom 3. This causes the air inlet 10 of the shared cleanroom to draw in suspended dust from the surrounding environment, and the purified gas is then discharged back into the environment through the dust removal pipeline and the dust removal fan 8. In cleaning mode, the control module controls the air path switching module 4 to connect the cleaning... The pipeline and dedicated cleaning fan 1 are connected to the air outlet 2 of the shared dust removal and cleaning purification chamber 3. Turning on the dedicated cleaning fan 1 creates a high negative pressure inside the shared dust removal and cleaning purification chamber 3, causing the air inlet 10 of the shared dust removal and cleaning purification chamber to draw in settled dust from the surrounding environment. The purified and dust-removed gas is then discharged back into the environment through the cleaning pipeline and dedicated cleaning fan 1. Each of the cleaning pipeline and the dust removal pipeline is equipped with an electric air valve 9 near the air path switching module 4. The electric air valve 9 is connected to the control module, which controls the connection or disconnection of the cleaning pipeline or dust removal pipeline with the air path switching module 4 via the electric air valve 9. This design ensures that the dust removal pipeline is closed during cleaning mode and the cleaning pipeline is closed during dust removal mode, preventing interference between the two modes and improving the operational stability of each mode.

[0047] like Figure 1 As shown, it also includes a dedicated dust collection chamber 5. The dedicated dust collection chamber 5 is equipped with a filter structure and has an air inlet and an air outlet on its surface. The air outlet 6 of the dedicated dust collection chamber is connected to the dust collection pipeline via a three-way pipe 7. In dust collection mode, the dedicated dust collection fan 8 creates a low negative pressure within the dedicated dust collection chamber 5, thereby drawing in suspended dust from the surrounding environment through the air inlet 11. The purified gas then merges with the purified gas from the shared dust collection and cleaning chamber 3 via the three-way pipe 7 within the dust collection pipeline before being discharged to the surrounding environment by the dedicated dust collection fan 8. This method increases the required airflow and dust collection area in dust collection mode, thus ensuring the dust collection efficiency. The aforementioned filter structure can be either a dry filter structure or a wet filter structure. Both of these existing structures can achieve the dust collection effect; the specific choice depends on the actual situation.

[0048] As an improvement of this invention, the air path switching module 4 is a three-way solenoid valve. Multiple electric butterfly valves can also be used in combination, but a three-way solenoid valve is preferred for easier control and switching. The diameter of the cleaning pipeline is smaller than that of the dust removal pipeline; the negative pressure generated by the cleaning fan 1 is greater than that generated by the dust removal fan 8. The dust removal pipeline is designed based on high air volume and low negative pressure characteristics to ensure air volume balance at each dust-generating point. The cleaning pipeline is designed based on low air volume and high negative pressure characteristics, and the air velocity inside the pipeline must be verified to meet the minimum conveying air velocity requirement to prevent dust settling and blockage. This minimum air velocity needs to be set according to dust characteristics (such as particle size and density) and with reference to industry standards or engineering experience values. This ensures the effectiveness of both the cleaning and dust removal modes.

[0049] The working method of the above-mentioned integrated dust removal and cleaning technology device includes the following steps: Step 1: Determine the device composition: The filtration capacity of the shared cleanroom 3 for dust removal and cleaning must meet the required cleaning airflow Q in cleaning mode. 清 And determine the required dust removal air volume Q in the dust removal mode. 除 If Q 除 ≈ Q 清 When the required dust removal environment space is small, the dust removal and purification section of the device consists only of the shared dust removal and cleaning purification chamber 3; if Q 除 Q 清 In order to reduce the load on a single cleanroom and optimize system resistance, the dust removal and purification section of the device consists of a shared dust removal and cleaning cleanroom 3 and a dedicated dust removal room 5.

[0050] Step 2: Determine the performance of the dust removal fan and the cleaning fan: The maximum air volume and maximum negative pressure generated by the dust removal fan 8 must be greater than the operating point (Q). 除 , P 除 ), where P 除 The total resistance of the dedicated dust removal cleanroom 5, the shared dust removal and cleaning cleanroom 3, and the dust removal pipeline; Q 除 The required dust removal air volume Q at the current operating point 除 .

[0051] The maximum air volume and maximum negative pressure generated by the cleaning fan 1 must be greater than the operating point (Q). 清 , P 清 ), where Q 清 The required cleaning air volume Q at the current operating point 清 ;P 清 The determination of the pressure must take into account the most unfavorable operating conditions, and its total pressure must meet the following requirements: P 清 ≥ΔP 清扫 + ΔP 共享净化室 +ΔP 泄漏 Where, ΔP 清扫 To clear the resistance in the pipeline; ΔP 共享净化室 The resistance to dust removal and cleaning of the shared cleanroom 3; ΔP 泄漏 The performance safety margin is set to deal with the possibility of minute leakage after the dust removal pipeline is closed, ensuring that the cleaning negative pressure is not affected and the fan operating point is stable.

[0052] Step 3: Determine the operating parameters of the filter structure: A. If the filter structure is a dry filter structure, then its total filtration area must meet the load requirements of both the cleaning mode and the dust removal mode. The specific formula is as follows: A total ≥max(Q 除 / v 除尘 Q 清 / v 清扫 ) Among them, v 除尘 and v 清扫 These are the required filtration speeds for dust removal and cleaning modes, respectively.

[0053] The dust removal cycle is dynamically triggered based on real-time dust load, and the triggering conditions are: ΔP 过滤 ≥ΔP 初始 + αL(t) Wherein, dust load L(t) ≈ ΣC n *Q n *Δt;ΔP 过滤 The real-time measured pressure difference (Pa) in the shared cleanroom for dust removal and cleaning; ΔP 初始 The initial resistance (Pa) of the clean filter media is given by α, which is the dust load resistance coefficient (Pa / g), calibrated experimentally; L(t) is the real-time dust load (g), i.e., the mass of dust accumulated since the last cleaning cycle; C n Q represents the average dust concentration (g / m³) during the nth sampling period; n Δt represents the average processing air volume (m³ / h) during the nth sampling period; Δt represents the sampling time interval (h).

[0054] B. If the filtration structure is a wet filtration structure, such as Figure 3The diagram shows a water-storage wet scrubber. The dust collection mode primarily handles suspended fine particulate matter (such as PM10 and PM2.5), requiring a higher liquid-to-gas ratio and more intense atomization to improve collection efficiency. The cleaning mode primarily handles settled coarse particulate matter (such as visible sand and flocculent matter), requiring sufficient liquid level to form a water curtain seal and impact energy, but excessive atomization must be avoided to prevent energy consumption and water carryover. Therefore, a calculation model is first determined, and the liquid-to-gas ratio of the wet filter structure is adaptively adjusted according to the cleaning and dust collection modes to achieve optimal dust collection performance in the corresponding modes. Specifically: I. Before the device starts operating, set the optimal theoretical liquid-to-gas ratio design value. The specific formula is as follows: Where: (L / G) set The theoretically optimal liquid-to-gas ratio (L / m) was set. 3 ); it serves as the output, a parameter used to guide the operation of the wet filter structure; f(d p ) is the particle size distribution frequency function of the target dust (m -1 As an input, it is determined by the working mode: in dust removal mode, the input is the fine particulate matter particle size distribution f(d). p ) 除 In cleaning mode, input the particle size distribution f(d) of coarse particles. p ) 清 η target (d) p ) for particle size d p The target capture efficiency of the particles; set as a constant (e.g., 99%), or set as a function related to particle size as required by regulations; η c (d) p For a single droplet with a particle size d p The collision efficiency of the particles is calculated using theoretical models (such as the Langmuir formula); K: system characteristic constant; this is a comprehensive constant that includes the influence of inherent factors such as droplet diameter, gas velocity, and dust collector structure. This constant needs to be calibrated based on experimental data from a specific device; d min and d max These represent the minimum and maximum particle sizes of dust particles in the environment.

[0055] II. During the operation of the device, the optimal liquid-to-gas ratio design value is corrected, specifically as follows: The optimal liquid-to-gas ratio was determined as a function of dust removal efficiency for different particle size ranges, and then the form of the function was determined through regression analysis: (L / G) 经验 =f(η(d) p )) Wherein, η(d) p () represents the actual measured purification efficiency of dust within the target particle size range.

[0056] When switching modes, the control module automatically calls the calculation model for this step, based on the typical dust particle size distribution in the current mode (where the dust removal mode corresponds to the fine particulate matter distribution f(d)). p ) 除 The cleaning mode corresponds to the coarse particulate matter distribution f(d) p ) 清 The system calculates and sets a new optimal liquid-gas ratio in real time to replace the optimal theoretical liquid-gas ratio design value determined in step I. Then, the control module controls the liquid flow rate L by adjusting the speed of the circulating water pump of the wet filter structure, and controls the gas flow rate G by adjusting the frequency of the fan corresponding to the current mode, thereby enabling the wet filter structure to continuously maintain the optimal liquid-gas ratio calculated.

[0057] Step 4, Dust Removal Mode: After completing the preset steps one through three, deploy the device to the required dust removal environment. During dust removal, the control module issues a command to close the electric air valve 9 in the cleaning pipeline to prevent the large volume of dust removal air from being diverted to the cleaning pipeline, ensuring that the air volume is concentrated on the production dust removal point. After confirming that the electric air valve 9 in the cleaning pipeline is closed, the control module controls the air path switching module 4 to connect the dust removal pipeline and the dedicated dust removal fan 8 with the air outlet 2 of the shared cleanroom for dust removal and cleaning, and opens the dedicated dust removal fan 5 and the electric air valve 9 in the dust removal pipeline to facilitate dust removal and cleaning. The shared cleanroom 3 generates a low negative pressure, which in turn draws in suspended dust from the environment through the air inlet 10. The purified air then enters the dust removal pipeline. Simultaneously, the dedicated dust removal fan 8 generates a low negative pressure inside the dedicated dust removal chamber 5, which in turn draws in suspended dust from the environment through the air inlet 11. The purified air then merges with the purified air from the shared cleanroom 3 through the three-way pipe 7 in the dust removal pipeline, and is then discharged into the environment through the dedicated dust removal fan 8, thus achieving dust removal of the surrounding environment.

[0058] Step 5, Cleaning Mode: During cleaning, the control module issues a command to close the electric air valve 9 and the dust removal fan 8 in the dust removal pipeline, preventing the high negative pressure of the cleaning fan 1 from being consumed by leaks and ineffective suction in the dust removal pipeline, ensuring that all suction force is used for cleaning. After confirming that the electric air valve 9 in the dust removal pipeline is closed, the control module controls the air path switching module 4 to connect the cleaning pipeline and the cleaning fan 1 with the air outlet 2 of the shared cleanroom for dust removal and cleaning, and opens the cleaning fan 1 and the electric air valve 9 in the cleaning pipeline, creating a high negative pressure inside the shared cleanroom for dust removal and cleaning. This causes the air inlet 10 of the shared cleanroom for dust removal and cleaning to draw in the settled dust from the surrounding environment. The purified and dust-removed gas is then discharged to the surrounding environment through the cleaning pipeline and the cleaning fan 1, thus achieving the cleaning of the surrounding environment.

[0059] The aforementioned timing interlock logic of "first shutting off the inlet, then switching the outlet" is the key to ensuring smooth airflow and preventing short circuits or power conflicts during mode switching.

[0060] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A dust removal and cleaning integrated technology device, characterized in that, It includes a shared cleanroom for dust removal and cleaning, an air path switching module, a dedicated cleaning fan, cleaning pipelines, a dedicated dust removal fan, dust removal pipelines, and a control module; The dust removal and cleaning shared purification chamber is equipped with a filter structure inside and an air inlet and an air outlet on its surface, which are used to purify and remove dust from the air entering through the air inlet and then discharge it through the air outlet. The air path switching module is installed at the air outlet of the shared cleanroom for dust removal and cleaning, and is connected to one end of the cleaning pipe and one end of the dust removal pipe respectively. The other end of the cleaning pipe and the other end of the dust removal pipe are connected to the cleaning fan and the dust removal fan respectively. The air path switching module can switch the connection or disconnection between the cleaning pipe or the dust removal pipe and the air outlet of the shared cleanroom for dust removal and cleaning. The control module is connected to the air path switching module, the cleaning fan, and the dust removal fan. In dust removal mode, the control module controls the air path switching module to connect the dust removal pipeline and the dust removal fan to the outlet of the shared cleanroom for dust removal and cleaning. It also activates the dust removal fan to create a low negative pressure inside the shared cleanroom, drawing in suspended dust from the environment through the air inlet. The purified gas is then discharged to the environment through the dust removal pipeline and the dust removal fan. In cleaning mode, the control module controls the air path switching module to connect the cleaning pipeline and the cleaning fan to the outlet of the shared cleanroom for dust removal and cleaning. It also activates the cleaning fan to create a high negative pressure inside the shared cleanroom, drawing in settled dust from the environment through the air inlet. The purified gas is then discharged to the environment through the cleaning pipeline and the cleaning fan.

2. The integrated dust removal and cleaning device according to claim 1, characterized in that, It also includes at least one dedicated dust removal chamber, which is equipped with a filter structure and has an air inlet and an air outlet on its surface. The air outlet of the dedicated dust removal chamber is connected to the dust removal pipeline through a three-way pipe. In the dust removal mode, the dedicated dust removal fan can generate a low negative pressure in the dedicated dust removal chamber, so that the air inlet of the dedicated dust removal chamber can draw in suspended dust from the surrounding environment. After the gas is purified and dust removed, it is combined with the gas purified and dust removed in the shared cleanroom of the dust removal and cleaning through the three-way pipe in the dust removal pipeline, and then discharged to the surrounding environment through the dedicated dust removal fan.

3. The integrated dust removal and cleaning device according to claim 1 or 2, characterized in that, The filtration structure can be a dry filtration structure or a wet filtration structure.

4. The integrated dust removal and cleaning device according to claim 1, characterized in that, Each of the cleaning pipeline and the dust removal pipeline is equipped with an electric air valve near the air path switching module. The electric air valve is connected to the control module, and the control module controls the connection or disconnection between the cleaning pipeline or the dust removal pipeline and the air path switching module through the electric air valve.

5. The integrated dust removal and cleaning device according to claim 1, characterized in that, The gas path switching module is a three-way solenoid valve.

6. The integrated dust removal and cleaning device according to claim 1, characterized in that, The diameter of the cleaning pipeline is smaller than that of the dust removal pipeline; the negative pressure generated by the cleaning fan is greater than that generated by the dust removal fan.

7. A method of operating the integrated dust removal and cleaning device according to any one of claims 1 to 6, characterized in that, Includes the following steps: Step 1: Determine the device composition: The filtration capacity of the shared cleanroom for dust removal and cleaning must meet the required cleaning airflow Q in cleaning mode. 清 And determine the required dust removal air volume Q in the dust removal mode. 除 If Q 除 ≈Q 清 At that time, the dust removal and purification section of the device consists only of a shared dust removal and cleaning purification chamber; if Q 除 Q 清 At that time, the dust removal and purification section of the device consists of a shared dust removal and cleaning purification room and at least one dedicated dust removal room; Step 2: Determine the performance of the dust removal fan and the cleaning fan: The maximum air volume and maximum negative pressure generated by the dust removal fan must be greater than the operating point (Q). 除 ,P 除 ), where P 除 The total resistance of the dedicated dust removal cleanroom, the shared dust removal and cleaning cleanroom, and the dust removal pipeline; Q 除 The required dust removal air volume Q at the current operating point 除 ; The maximum air volume and maximum negative pressure generated by the cleaning-specific blower must be greater than the operating point (Q). 清 ,P 清 ); where Q 清 The required cleaning air volume Q at the current operating point 清 ;P 清 The determination of the pressure must take into account the most unfavorable operating conditions, and its total pressure must meet the following requirements: P 清 ≥ΔP 清扫 +ΔP 共享净化室 +ΔP 泄漏 Wherein, ΔP 清扫 To clear the resistance in the pipeline; ΔP 共享净化室 Resistance to dust removal and cleaning of the shared cleanroom; ΔP 泄漏 Performance safety margins are provided to address potential leaks after the dust collection pipeline is shut down; Step 3: Determine the operating parameters of the filter structure: A. If the filter structure is a dry filter structure, its total filter area must meet the load of both the cleaning mode and the dust removal mode; and its cleaning cycle must be set. B. If the filter structure is a wet filter structure, first determine the calculation model, and adaptively adjust the liquid-to-gas ratio of the wet filter structure according to the cleaning mode and dust removal mode to achieve the optimal dust removal performance in the corresponding mode. Step 4, Dust Removal Mode: After completing the preset steps one through three, deploy the device to the required dust removal environment. During dust removal, the control module issues a command to close the electric air valve in the cleaning pipeline. After confirming that the electric air valve in the cleaning pipeline is closed, the control module controls the air path switching module to connect the dust removal pipeline and the dedicated dust removal fan to the air outlet of the shared cleanroom. It also opens the dedicated dust removal fan and the electric air valve in the dust removal pipeline, creating a low negative pressure inside the shared cleanroom. This allows the air inlet of the shared cleanroom to draw in suspended dust from the surrounding environment. The purified gas is then discharged back into the environment through the dust removal pipeline and the dedicated dust removal fan, thus achieving dust removal for the surrounding environment. Step 5, Cleaning Mode: During cleaning, the control module issues a command to close the electric air valve and the dedicated dust removal fan in the dust removal pipeline. After confirming that the electric air valve in the dust removal pipeline is closed, the control module controls the air path switching module to connect the cleaning pipeline and the dedicated cleaning fan to the air outlet of the shared cleanroom for dust removal and cleaning. It then opens the dedicated cleaning fan and the electric air valve in the cleaning pipeline, creating a high negative pressure inside the shared cleanroom. This causes the air inlet of the shared cleanroom to draw in settled dust from the surrounding environment. The purified and dust-removed gas is then discharged back into the environment through the cleaning pipeline and the dedicated cleaning fan, thus completing the cleaning of the surrounding environment.

8. The working method according to claim 7, characterized in that, In step A, the total filtration area meets the load requirements of both the cleaning mode and the dust removal mode. The specific formula is as follows: A total ≥max(Q 除 / v 除尘 ,Q 清 / v 清扫 ) Among them, v 除尘 and v 清扫 These are the required filtration speeds for dust removal and cleaning modes, respectively. The dust removal cycle is dynamically triggered based on real-time dust load, and the triggering conditions are: ΔP 过滤 ≥ΔP 初始 +αL(t) Wherein, dust load L(t) ≈ ΣC n *Q n *Δt;ΔP 过滤 The pressure difference ΔP in the shared cleanroom for dust removal and cleaning is measured in real time. 初始 The initial resistance of the cleaning filter media is given by α, which is the dust load resistance coefficient, calibrated experimentally; L(t) is the real-time dust load, i.e., the accumulated dust mass since the last cleaning cycle; C n Q represents the average dust concentration during the nth sampling period. n Δt represents the average processing air volume during the nth sampling period; Δt is the sampling time interval.

9. The working method according to claim 7, characterized in that, In step B, the liquid-to-gas ratio of the wet filter structure is adaptively adjusted according to the cleaning mode and dust removal mode, specifically as follows: I. Before the device starts operating, set the optimal theoretical liquid-to-gas ratio design value. The specific formula is as follows: Where: (L / G) set The theoretically optimal liquid-to-gas ratio is set; it serves as the output parameter to guide the operation of the wet filtration structure; f(d p ) is the particle size distribution frequency function of the target dust; it serves as input and is determined by the operating mode: in dust removal mode, the input is the fine particulate matter particle size distribution f(d) p ) 除 In cleaning mode, input the coarse particle size distribution f(d) p ) 清 η target (d) p ) for particle size d p η is the target capture efficiency of particles. c (d) p ( ) represents a single droplet with a particle size d p The collision efficiency of the particles; K: system characteristic constant; d min and d max These represent the minimum and maximum particle sizes of dust particles in the environment. II. During the operation of the device, the optimal liquid-to-gas ratio design value is corrected, specifically as follows: The optimal liquid-to-gas ratio was determined as a function of dust removal efficiency for different particle size ranges, and then the form of the function was determined through regression analysis: (L / G) 经验 =f(η(d) p )) Wherein, η(d) p () represents the actual measured purification efficiency of dust within the target particle size range; When switching modes, the control module automatically calls the calculation model of this step, calculates and sets a new optimal liquid-gas ratio in real time based on the typical dust particle size distribution in the current mode, replacing the optimal theoretical liquid-gas ratio design value determined in step I; then the control module controls the liquid flow rate L by adjusting the speed of the circulating water pump of the wet filter structure, and at the same time adjusts the frequency of the fan corresponding to the current mode to control the gas flow rate G, thereby enabling the wet filter structure to continuously maintain the optimal liquid-gas ratio calculated.

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