Process gas treatment apparatus and process gas treatment method

Abstract

The invention relates to a process gas treatment apparatus for a process gas used for processing a process material in a process apparatus, with a process gas inlet and a process gas outlet, a process gas dehumidification apparatus and a process gas temperature control apparatus, wherein the process gas temperature control apparatus has a temperature control unit, a cooling unit and a bypass unit connected in parallel to the temperature control unit, wherein a valve assembly is arranged at the bypass unit, a first measuring apparatus and a control apparatus, wherein the cooling unit is an integral part of the bypass unit, wherein the process apparatus is configured as an apparatus component of the process gas treatment apparatus and as a fluidization apparatus or a coating apparatus.

Description

Technical Field

[0001] This invention relates to a process gas processing apparatus for process gases used to process process materials in a process unit. The process gas processing apparatus includes: a process gas inlet and a process gas outlet fluidly connected to the process unit, wherein the process gas flows in a processing section extending from the process gas inlet to the process gas outlet; a process gas dehumidification device configured as an apparatus component along the flow direction of the process gas; and a process gas temperature control device configured as an apparatus component downstream of the process gas dehumidification device, wherein the process gas dehumidification device has a dehumidification device inlet and a dehumidification device outlet, and the process gas temperature control device has a temperature control device inlet and a temperature control device outlet. The device includes a temperature control unit for the process gas, a cooling unit for the process gas, and a bypass unit connected in parallel with the temperature control unit. The temperature control unit has a temperature control unit inlet and a temperature control unit outlet. The cooling unit has a cooling unit inlet and a cooling unit outlet. The bypass unit has a bypass inlet and a bypass outlet. A valve assembly for selectively flowing through the temperature control unit or the bypass unit is arranged at the bypass unit. The device also includes a first measuring device having a relative humidity sensor for measuring the relative humidity of the process gas, located downstream of the process gas dehumidification device. Finally, a control device is provided.

[0002] Furthermore, the present invention relates to a method for processing process gases used to process process materials in a process apparatus during a drying and cooling phase. The process apparatus includes a process gas processing device having: a process gas inlet and a process gas outlet fluidly connected to the process apparatus, wherein the process gas flows over a processing section extending from the process gas inlet to the process gas outlet; a process gas dehumidification device configured as a component along the flow direction of the process gas; and a process gas temperature control device configured as a component downstream of the process gas dehumidification device, wherein the process gas dehumidification device has a dehumidification device inlet and a dehumidification device outlet, and the process gas temperature control device has a temperature control device inlet and a temperature control device outlet. The device includes an outlet, and wherein the process gas temperature control equipment comprises a temperature control unit for the process gas constituting the equipment component, a cooling unit for the process gas constituting the equipment component, and a bypass unit for the equipment component connected in parallel with the temperature control unit, the temperature control unit having a temperature control unit inlet and a temperature control unit outlet, the cooling unit having a cooling unit inlet and a cooling unit outlet, and the bypass unit having a bypass inlet and a bypass outlet, wherein a valve assembly constituting the equipment component is arranged at the bypass unit for selectively flowing through the temperature control unit or the bypass unit; and a first measuring device having a relative humidity sensor for measuring the relative humidity of the process gas, wherein the first measuring device is arranged downstream of the process gas dehumidification equipment; and a control device. Background Technology

[0003] Process gas handling equipment is known, but in addition to the high energy consumption for process gases, it also has a long cooling time for process gases. Summary of the Invention

[0004] Therefore, the object of the present invention is to provide a process gas processing apparatus and a method for processing process gases, so as to minimize the disadvantages of known process gas processing apparatuses, especially for the high energy consumption and long cooling time of process gases.

[0005] In process gas handling equipment of the type described at the beginning, this objective is achieved by incorporating a cooling unit as part of a bypass unit. Besides the advantage of significantly reducing energy consumption during the drying and cooling phases of the process material, this process gas handling equipment also has the advantage that the cooling time for the process gas (particularly configured as ambient air) in the cooling phase immediately following the drying phase is shortened by arranging the cooling unit within the bypass unit. The cooling phase of the process material begins after the drying phase. This cooling phase is necessary to prevent moisture, especially in the form of water, from "leaking" from the processed process material, as this moisture would otherwise condense and potentially cause undesirable agglomeration of the process material in the process unit. In known process gas handling equipment, the process gas is cooled upstream or downstream of a process gas temperature control device. In cases where the process gas is cooled upstream or downstream of the process gas temperature control device, all equipment components are also passed through during the cooling phase and are therefore cooled before the process material, which is very energy-intensive and time-consuming, for example, due to the inertial mass of the installed equipment components.

[0006] In related improvements to process gas handling equipment, the equipment includes a process unit configured as an equipment component, which is suitably configured as a fluidizing device or a coating device. The fluidizing device is, for example, configured as a fluidized bed device or a spray bed device. The coating device is, for example, a coating machine, particularly a roller coating machine.

[0007] Process gas handling equipment preferably includes process gas conveying equipment constructed as equipment components. The advantage of this design is that process gases can be regulatedly conveyed in the handling section by the process gas conveying equipment (especially blowers, vacuum pumps, etc.). In this regard, the process gas conveying equipment is suitably located upstream and / or downstream of the process unit.

[0008] Further improvements to process gas handling equipment have led to the development of process gas dehumidification equipment comprising a condensation dehumidification unit and / or an adsorption dehumidification unit, both configured as equipment components. The condensation dehumidification unit has a condensation dehumidification unit inlet and an adsorption dehumidification unit outlet, while the adsorption dehumidification unit has an adsorption dehumidification unit inlet and an adsorption dehumidification unit outlet. Advantageously, both the condensation dehumidification unit and the adsorption dehumidification unit are suitable for dehumidifying process gases, wherein improved and precisely adjustable dehumidification of the process gas is achieved by using both units in the process gas dehumidification equipment. The use of these two equipment components, or a combination thereof, depends on the amount of moisture to be extracted from the process gas.

[0009] Suitablely, the condensation dehumidification unit is constructed as a fluid-cooled condenser, wherein cooling water, such as water from a nearby body of water, is used as the fluid. The condensation dehumidification unit, constructed as a condenser, is preferably sized to cool the process gas to approximately 8°C when using cooling water. This reduces the relative humidity of the process gas, thereby drying it.

[0010] The size of the condenser-dehumidification unit, constructed as a condenser, is designed to be sufficient for most methods used to process process gases.

[0011] In process gas dehumidification equipment that includes both condensation dehumidification and adsorption dehumidification units, the condensation dehumidification unit is appropriately positioned upstream of the adsorption dehumidification unit in the processing section. Therefore, the relative humidity of the process gas after passing through the condensation dehumidification unit can be precisely adjusted by the adsorption dehumidification unit, which is preferably constructed as a drying wheel.

[0012] In particular, the adsorption dehumidification unit has a regeneration unit configured as an equipment component, which has a regeneration unit inlet and a regeneration unit outlet. The regeneration gas is conveyed by a regeneration gas conveying device configured as an equipment component, having a regeneration gas conveying device inlet and outlet, in a regeneration section extending from the regeneration unit inlet to the regeneration unit outlet. The regeneration gas flows through a regeneration gas heating device configured as an equipment component and the adsorption dehumidification unit, which has a regeneration gas heating device inlet and outlet, and the adsorption dehumidification unit has a regeneration gas inlet and outlet. Thermal regeneration of the adsorption dehumidification unit is suitably performed. During thermal regeneration, to regenerate the desiccant in the adsorption dehumidification unit, the regeneration gas is heated to a temperature of, for example, 160°C or higher, and guided through the adsorption dehumidification unit to be regenerated. The hot regeneration gas removes the moisture absorbed from the process gas from the desiccant, and preferably suitably discharges this moisture into the environment at the regeneration unit outlet. In this regard, the regeneration section is preferably configured as a closed loop. Correspondingly, such a closed loop has the advantage that the regeneration of the adsorption dehumidification unit can be carried out independently of environmental conditions, i.e., without drawing in ambient air.

[0013] According to another design scheme for process gas handling equipment, the process gas dehumidification equipment has a preheating unit constructed as a component of the equipment. This preheating unit has a preheating unit inlet and a preheating unit outlet, and is suitably arranged upstream of the condensation dehumidification unit and / or the adsorption dehumidification unit. The preheating unit particularly serves as an "anti-freeze heater" for the condensation dehumidification unit. When the regeneration section is constructed as a closed loop, the moisture absorbed from the regeneration gas during the regeneration of the adsorption dehumidification unit is condensed in the preheating unit.

[0014] Furthermore, and particularly preferably, the preheating unit is also associated with the regeneration unit, wherein the preheating unit is arranged upstream of the regeneration gas heating device and downstream of the regeneration gas conveying device in the regeneration section, which is configured as a closed loop. Thus, the process gas is heated as it flows through the preheating unit, while the regeneration gas is cooled as it flows through the preheating unit. The integration of the preheating unit, configured as a heat source, further improves the drying economy of the process gas.

[0015] Furthermore, preferably, the regenerated gas conveying equipment is arranged downstream of the adsorption dehumidification unit in the regeneration section. This arrangement of the regenerated gas conveying equipment generates a negative pressure, preferably in the regeneration section.

[0016] More preferably, the first measuring device is arranged upstream of the process gas temperature control device. Advantageously, the relative humidity in the process gas is measured by means of the first measuring device and transmitted as a sensor signal to the control device.

[0017] Humidity describes the proportion of water vapor in a process gas, excluding liquid water (such as rain and dew). Relative humidity indicates the highest possible saturation level, where 100% means the process gas can no longer absorb water vapor. Absolute humidity indicates the mass of water vapor per cubic meter of process gas. The higher the temperature, the more water vapor a process gas (especially air) can absorb.

[0018] Relative humidity can be converted to absolute humidity using approximate formulas. Various approximate formulas exist in the literature for this purpose. A "simple" approximate formula for calculating absolute humidity f in g / m³ from relative humidity and temperature is as follows:

[0019] ,

[0020] Within a temperature range of -30℃ to 35℃ and under normal atmospheric pressure, the maximum deviation accuracy is achieved at 0.1%, where temperature T is in degrees Celsius, relative humidity rh is in percentage (%), and e is the base of the natural logarithm, 2.71828. The greater the deviation of the temperature from the above range, the less accurate the conversion result will be.

[0021] To convert relative humidity to absolute humidity, the temperature of the process gas is required. Therefore, the first measuring device also includes a temperature sensor for measuring the temperature of the process gas. Suitablely, the temperature of the process gas is also measured and transmitted as a sensor signal to the control device.

[0022] The relative humidity sensor and temperature sensor of the first measuring device are preferably constructed as structural units.

[0023] By utilizing the appropriate sensor signal of the process gas to transmit temperature and relative humidity to the control equipment, absolute humidity independent of temperature can be calculated. This is then converted into an actual absolute humidity value in the first measuring or control device.

[0024] According to another improvement to the process gas handling equipment, the temperature control unit has a heating device constructed as an equipment component, which has a heating device inlet and a heating device outlet. The heating device is advantageously suited for handling process gases by cooling or heating during the drying stage of the processed materials. Therefore, the temperature of process gases, especially in the form of ambient air, can be adjusted to any temperature within the range of 5°C to 250°C.

[0025] According to an additional improvement to the process gas handling equipment, the process gas delivery equipment is arranged downstream of the process gas dehumidification equipment and upstream of the process gas temperature control equipment. This arrangement of the process gas delivery equipment downstream of the process gas dehumidification equipment generates a negative pressure, preferably in the processing section. Furthermore, in this improved version of the process gas handling equipment, a second measuring device with a relative humidity sensor for measuring the relative humidity of the process gas is arranged upstream of the process gas dehumidification equipment. Advantageously, the relative humidity in the process gas is measured at the process gas inlet by means of the second measuring device and transmitted as a sensor signal to the control equipment. This allows for the adjustment and / or control of each individual equipment component independently of other equipment components.

[0026] To convert relative humidity to absolute humidity, the temperature of the process gas is required. Therefore, the second measuring device also has a temperature sensor for measuring the temperature of the process gas. In particular, the temperature of the process gas measured at the second measuring device is also transmitted as a sensor signal to the control device.

[0027] The relative humidity sensor and temperature sensor of the second measuring device are also suitably constructed as structural units.

[0028] The temperature and relative humidity measured at the second measuring device are used to regulate and / or control individual equipment components by switching them on and off. In particular, the condensation dehumidification unit, adsorption dehumidification unit, preheating unit, and / or humidification equipment are thus regulated and / or controlled accordingly. Surprisingly, this modern, innovative, and forward-looking control technology results in significant energy savings and improved treatment of process gases.

[0029] In another design of the process gas handling equipment, it preferably includes a humidification device, constructed as a component of the equipment, located particularly downstream of the process gas dehumidification device and upstream of the process gas temperature control device. This humidification device has a humidification inlet and a humidification outlet. The process gas can be humidified by the humidification device, and the humidity of the process gas can be set to be quantitatively higher than the humidity of the process gas entering the process gas handling equipment at the process gas inlet. For this purpose, the process gas is heated by a preheating unit to a temperature that allows the process gas to absorb moisture.

[0030] Furthermore, this objective is achieved in methods of the type described at the beginning in such a way that the cooling unit is part of the bypass unit, and wherein the process material flows through the temperature control unit during the drying phase while being processed in the process unit, and flows through the bypass unit with the cooling unit during the cooling phase. In addition to the advantage of significantly reducing energy consumption during the drying and cooling phases of the process material, the method for processing process gases in a process gas handling apparatus designed in this way also has the advantage that the cooling time for the process gas, particularly configured as ambient air, in the cooling phase immediately following the drying phase of the process material is shortened by arranging the cooling unit in the bypass unit. The cooling phase of the process material begins after the drying phase. This cooling phase is necessary to prevent moisture, particularly in the form of water, from “leaking” from the processed process material, as this moisture would otherwise condense and potentially cause undesirable agglomeration of the process material in the process unit. In known process gas handling apparatuses, the cooling of the process gas is performed upstream or downstream of the process gas temperature control unit. When cooling of process gases occurs upstream or downstream of a process gas temperature control device, all equipment components are also passed through during the cooling phase and are therefore cooled before the process material, which is very energy-intensive and time-consuming, for example, due to the inertial mass of the installed equipment components. Since this method does not involve the flow of process gas through the temperature control device during the cooling phase, it is significantly more energy-efficient than known methods.

[0031] According to another advantageous design of this method, particularly at least during the drying phase, the humidity of the process gas flowing through the process gas treatment equipment is regulated. The humidity of the process gas can be regulated using either relative humidity or absolute humidity, with absolute humidity being preferred because, unlike relative humidity, absolute humidity is independent of the temperature of the process gas.

[0032] Preferably, the first measuring device has a temperature sensor for measuring the temperature of the process gas, and a first absolute humidity comparison is performed in the control device between a rated absolute humidity value and an actual absolute humidity value, wherein the actual absolute humidity value is determined based on the relative humidity value measured by the relative humidity sensor of the first measuring device and the temperature value measured by the relevant temperature sensor. The determination of the actual absolute humidity value is suitably performed in the first measuring device or the control device. Taking into account the first absolute humidity comparison, the control device transmits absolute humidity adjustment parameters to the process gas dehumidification device and / or humidification device to adjust the absolute humidity of the process gas. Suitably, the humidity is adjusted within a tolerance of ±3% of the rated value.

[0033] In this regard, the process gas is humidified by a humidification device, which is particularly located downstream of the process gas dehumidification device and upstream of the process gas temperature control device. The humidification device allows the process gas to be humidified, and the humidity of the process gas can be set to be quantitatively higher than the humidity of the process gas entering the process gas processing equipment at the process gas inlet. For this purpose, the process gas is heated by a preheating unit to a temperature that allows the process gas to absorb moisture. The humidification device makes the method of treating process gases used to process process materials in process units, especially fluidization units or coating units, more flexible.

[0034] According to a further improvement of the method, the process gas dehumidification device has an adsorption dehumidification unit with a regeneration unit, wherein the adsorption dehumidification unit is at least partially regenerated by the regeneration unit. In this regard, the regeneration unit has a regeneration gas heating device for heating the regeneration gas, so that the regeneration gas absorbs moisture as it flows through the adsorption dehumidification unit, thereby drying and thus regenerating the adsorption dehumidification unit at least partially. The adsorption dehumidification unit dehumidifies the process gas—whether or not a condensation dehumidification unit is connected upstream—to achieve the rated values ​​stored in the control device. This is achieved, in particular, by precisely adjusting parameters important to this, such as the temperature and relative humidity of the regeneration gas. In particular, the control device thus adjusts and / or controls the regeneration gas heating device based on a comparison of actual values ​​and rated values. The regeneration gas regenerates the adsorption dehumidification unit so that the adsorption dehumidification unit is just able to absorb the amount of moisture needed to dry the process gas accordingly to achieve the rated values ​​stored in the control device. Here, the regeneration gas preferably flows countercurrently through the adsorption dehumidification unit to the process gas.

[0035] Furthermore, the process gas dehumidification equipment includes a preheating unit, which is suitably located upstream of the condensation dehumidification unit. The preheating unit heats the process gas entering the process gas processing equipment via the process gas inlet to prevent icing in the condensation dehumidification unit, or to humidify the process gas. The preheating unit particularly functions as an "anti-freeze heater" for the condensation dehumidification unit. When the regeneration section is constructed as a closed loop, the moisture absorbed from the regeneration gas during regeneration of the adsorption dehumidification unit is condensed in the preheating unit.

[0036] According to an additional improvement to the method, each component of the process gas handling equipment can be switched on and / or off. For this purpose, a second measuring device is arranged upstream of the process gas dehumidification equipment. This second measuring device has a relative humidity sensor for measuring the relative humidity of the process gas and a temperature sensor for measuring the temperature of the process gas. A second absolute humidity comparison is performed in the control equipment between a rated absolute humidity value and an actual absolute humidity value, wherein the actual absolute humidity value is determined based on the relative humidity value measured by the relative humidity sensor of the second measuring device and the temperature value measured by the associated temperature sensor. Suitably, the determination of the actual absolute humidity value is performed in either the second measuring device or the control equipment. Therefore, taking into account the second absolute humidity comparison, the control equipment can transmit absolute humidity adjustment parameters to each component to switch on and / or off the corresponding component of the process gas handling equipment.

[0037] Based on absolute humidity comparisons, the control equipment determines which components of the process gas handling unit are switched on and / or off to dehumidify the process gas. The absolute humidity ratings used in practice when operating process gas handling units are listed below:

[0038] - When the absolute humidity rating is greater than or equal to 8 g / m³, dehumidification is performed only through the condensation dehumidification unit; the adsorption dehumidification unit is shut off when it is present.

[0039] - When the absolute humidity rating is less than 8 g / m³, dehumidification is performed only through the adsorption dehumidification unit; the condensation dehumidification unit is shut off when it is present.

[0040] - When the absolute humidity rating is less than 8 g / m³ and the difference between the actual absolute humidity value and the absolute humidity rating is greater than or equal to 6 g / m³, dehumidification is performed through the condensation dehumidification unit and the adsorption dehumidification unit.

[0041] - When the actual absolute humidity value is less than the rated absolute humidity value, humidification is carried out through humidification equipment.

[0042] The absolute humidity ratings mentioned above are based on experience and may deviate from them.

[0043] The process gas handling equipment includes a process gas conveying device configured as an equipment component, which conveys process gas in a processing section extending from the process gas inlet to the process gas outlet. The advantage of this design is that the process gas can be conveyed regulatedly by the process gas conveying device (especially a blower, vacuum pump, etc.) in the processing section. Attached Figure Description

[0044] The invention will now be explained in more detail with reference to the accompanying drawings, in which:

[0045] Figure 1 A first embodiment of the process gas handling equipment is shown;

[0046] Figure 2 A second embodiment of the process gas handling equipment is shown;

[0047] Figure 3 A third embodiment of the process gas handling equipment is shown;

[0048] Figure 4 A fourth embodiment of the process gas handling equipment is shown;

[0049] Figure 5 A fifth embodiment of the process gas handling equipment is shown;

[0050] Figure 6 A sixth embodiment of the process gas handling apparatus is shown; and

[0051] Figure 7 A seventh embodiment of the process gas handling equipment is shown. Detailed Implementation

[0052] Unless otherwise stated, the following description pertains to: all embodiments of the preferred process gas processing apparatus 1 shown in the drawings for processing process gas 2, which is used to process process materials in process unit 3; and corresponding methods for processing process gas 2, which is used to process process materials in process unit 3. Here, the process gas processing apparatus 1 suitably has a process unit 3 configured as equipment component 4, which is particularly configured as a fluidizing device 5 or a coating device 6.

[0053] The process gas handling equipment 1 has a process gas inlet 7 and a process gas outlet 10 fluidly connected to the process unit 3, which has a process unit inlet 8 and a process unit outlet 9. The process gas inlet 7 and the process gas outlet 10 are preferably configured as connecting joints, at which channel sections 11, suitably configured as pipelines, can be arranged for supply or transfer functions. To more easily distinguish identical objects, these objects are denoted by a, b, c, etc., in the accompanying drawings, for example, for channel sections 11a, 11b, and 11c.

[0054] Process gas 2 is conveyed by process gas conveying equipment 12, configured as equipment component 4, in a processing section 13 extending from process gas inlet 7 to process gas outlet 10. Process gas conveying equipment 12, having process gas inlet 14 and process gas outlet 15, is suitably configured as a vacuum pump 16 or a blower 17. Process gas inlet 14 and process gas outlet 15 are preferably configured as connecting joints, at which channel sections 11 for supply or transfer functions may be arranged, wherein channel sections 11 are particularly configured as pipes.

[0055] In the flow direction of the process gas 2, the process gas processing equipment 1 includes a process gas dehumidification device 18 configured as equipment component 4 and a process gas temperature control device 19 configured as equipment component 4 and arranged downstream of the process gas dehumidification device 18. The process gas conveying device 12 is preferably arranged downstream of the process gas dehumidification device 18 and upstream of the process gas temperature control device 19.

[0056] The process gas dehumidification device 18 has a dehumidification inlet 20 and a dehumidification outlet 21, and the process gas temperature control device 19 has a temperature control unit inlet 22 and a temperature control unit outlet 23. The dehumidification inlet 20, dehumidification outlet 21, temperature control unit inlet 22, and temperature control unit outlet 23 are preferably also constructed as connecting joints, at which passage sections 11, particularly in the form of pipes, can be arranged or arranged to serve a supply or transfer function. Advantageously, the process gas dehumidification device 18 can achieve targeted and precise dehumidification of the process gas 2.

[0057] Here, the process gas dehumidification device 18 has a condensation dehumidification unit 26 and / or an adsorption dehumidification unit 29 configured as device component 4. The condensation dehumidification unit has a condensation dehumidification unit inlet 24 and a condensation dehumidification unit outlet 25, and the adsorption dehumidification unit has an adsorption dehumidification unit inlet 27 and an adsorption dehumidification unit outlet 28. The condensation dehumidification unit inlet 24 and the condensation dehumidification unit outlet 25, as well as the adsorption dehumidification unit inlet 27 and the adsorption dehumidification unit outlet 28, are preferably configured as connecting joints, at which channel sections 11, suitably configured as pipelines, can be arranged or arranged to serve a supply or transfer function.

[0058] In addition to the process gas handling equipment 1 Figure 1 The first embodiment shown (where the process gas dehumidification device 18 only has a condensation dehumidification unit 26) and in Figure 2 In the illustrated embodiment (where the process gas dehumidification device 18 only has an adsorption dehumidification unit 29), the process gas dehumidification device 18 in Figures 3 to 7 All other embodiments shown include a condensation dehumidification unit 26 and an adsorption dehumidification unit 29, with the adsorption dehumidification unit arranged downstream of the condensation dehumidification unit 26 on the processing section 13. Preferably, the condensation dehumidification unit 26 is configured as a fluid-cooled condenser 30, and the adsorption dehumidification unit 29 is configured as a drying wheel 31.

[0059] In the case of a fluid-cooled condenser 30, cooling water is used in particular. In this case, the condenser 30 is specifically designed to be such that, when using cooling water, the process gas 2 is cooled to approximately 8°C, thereby reducing the humidity of the process gas 2. This condenser size design is sufficient for most methods performed to process the process gas 2. The process gas 2 can also be cooled to different temperatures. The aforementioned 8°C is an empirical value used by the operator of the process gas handling equipment 1 when using cooling water from a cooling water network.

[0060] Figure 2 The illustrated embodiment shows an adsorption dehumidification unit 29 configured as a process dehumidification device 18 in the form of a drying wheel 31. The humidity of the process gas 2 can be precisely adjusted by the adsorption dehumidification unit 2 configured as a drying wheel 31.

[0061] Also in Figures 3 to 6 In this embodiment, the humidity of the process gas 2 can be precisely adjusted by an adsorption dehumidification unit 29 configured as a drying wheel 31. The adsorption dehumidification unit 29 is therefore configured to... Figures 2 to 6The illustrated embodiment includes a regeneration unit 34 configured as device component 4, having a regeneration unit inlet 32 ​​and a regeneration unit outlet 33. The regeneration unit inlet 32 ​​and regeneration unit outlet 33 are preferably configured as connecting joints, at which channel sections 11, suitably configured as pipes, can be arranged for supply or transfer functions. For the regeneration of the adsorption dehumidification unit 29, particularly the drying wheel 31, regeneration gas 35 is supplied by a regeneration gas conveying device 39 configured as device component 4 over a regeneration section 36 extending from the regeneration unit inlet 32 ​​to the regeneration unit outlet 33. The regeneration gas conveying device has a regeneration gas conveying device inlet 37 and a regeneration gas conveying device outlet 38. The regeneration gas conveying device inlet 37 and regeneration gas conveying device outlet 38 are also suitably configured as connecting joints, at which channel sections 11, for example configured as pipes, can be arranged for supply or transfer functions. Here, in the flow direction of the regenerated gas 35, the regenerated gas heating device 42 and the adsorption dehumidification unit 29, configured as equipment component 4, flow through. The regenerated gas heating device has a regenerated gas heating device inlet 40 and a regenerated gas heating device outlet 41, and the adsorption dehumidification unit has a regenerated gas inlet 43 and a regenerated gas outlet 44. A heat exchanger or electric heater is particularly suitable as the regenerated gas heating device 42. Preferably, the regenerated gas heating device inlet 40 and regenerated gas heating device outlet 41, as well as the regenerated gas inlet 43 and regenerated gas outlet 44, are also configured as connecting joints, at which passage sections 11, particularly configured as pipes, can be arranged for supply or transfer functions. The regenerated gas conveying device 39 is suitably arranged downstream of the adsorption dehumidification unit 29 in the regeneration section 36, and more preferably simultaneously arranged upstream of the process gas temperature control device 19, thereby preferably generating or creating a negative pressure in the regeneration section 36.

[0062] Thermal regeneration of the adsorption dehumidification unit 29 is appropriately performed. During thermal regeneration, in order to regenerate the desiccant in the adsorption dehumidification unit 29, the regeneration gas 35 is heated to a temperature of, for example, 160°C and guided through the adsorption dehumidification unit 29 to be regenerated. The thermal regeneration gas 35 removes the moisture absorbed from the process gas 2 from the desiccant and advantageously discharges the moisture into the environment at the regeneration unit outlet 33.

[0063] exist Figure 3 In the illustrated embodiment, as part of the process gas 2, the regenerated gas 35 is diverted from the process gas 2 upstream of the condensation and dehumidification unit 26. After diversion, the regenerated gas 35 flows along the flow direction through the regeneration section 36, passing through the regeneration gas heating device 42, the adsorption and dehumidification unit 29, and the regenerated gas conveying device 39, and enters the environment through the regeneration unit outlet 33—thus leaving the regeneration unit 34, and thus leaving the process gas processing equipment 1.

[0064] and Figure 3 The embodiments shown are different, with regenerated gas 35 in Figure 2 and 4 In the embodiment shown, the gas is not part of process gas 2, but is taken from ambient air.

[0065] exist Figure 5 and 6 In the two embodiments described herein, with Figures 2 to 4 In contrast to the previous implementation, the regeneration section 36 is configured as a closed loop 45. Figure 5 In the fifth embodiment shown, the regenerated gas 35 flows co-currently with the process gas 2 through the adsorption dehumidification unit 29. Figure 6 In the sixth embodiment shown, process gas 2 and regeneration gas 35 flow through adsorption dehumidification unit 29 in a countercurrent manner. Closed loop 45 has the advantage that the regeneration of adsorption dehumidification unit 29 can be carried out independently of environmental conditions, such as ambient temperature and ambient air.

[0066] Figure 7 A seventh embodiment of the process gas treatment apparatus 1 is shown. Here, the adsorption dehumidification unit 29 of the process gas dehumidification apparatus 18 has two containers 72a and 72b respectively filled with adsorbent. Each container 72a or 72b is cold-regenerated or hot-regenerated by regeneration gas 35, while the corresponding other container 72a or 72b is passed through process gas 2 and the process gas is dried to the desired humidity.

[0067] Furthermore, the process gas dehumidification device 18 has a preheating unit 48 configured as device component 4, which has a preheating unit inlet 46 and a preheating unit outlet 47. The preheating unit serves particularly as an "anti-freeze heater" for the condensation dehumidification unit 26 and is suitably arranged upstream of the condensation dehumidification unit 26 and / or the adsorption dehumidification unit 29. When the regeneration section 36 is configured as a closed loop 45, the moisture absorbed during the regeneration of the adsorption dehumidification unit 29 is condensed from the regeneration gas 35 in the preheating unit 48. Advantageously, the preheating unit 48 is also associated with the regeneration unit 34, such that the preheating unit 48 is arranged upstream of the regeneration gas heating device 42 and downstream of the regeneration gas conveying device 39 in the regeneration section 36 configured as a closed loop 45, thereby heating the process gas 2 as it flows through the preheating unit 48 and cooling the regeneration gas 35 as it flows through the preheating unit 48. Advantageously, the preheating unit inlet 46 and the preheating unit outlet 47 are configured as pipe joints, at which passage sections 11, suitably configured as pipelines, can be arranged to serve a supply or transfer function.

[0068] The process gas temperature control device 19 has a temperature control unit 51 configured as a device component 4 for the process gas 2. This temperature control unit has a temperature control unit inlet 49 and a temperature control unit outlet 50. Suitably, the temperature control unit inlet 49 and the temperature control unit outlet 50 are configured as pipe joints, at which passage sections 11, suitably configured as pipes, can be arranged for supply or transfer functions. In this case, the temperature control unit 51 has a heating device 54 configured as a device component 4, which has a heating device inlet 52 and a heating device outlet 53. Preferably, the heating device inlet 52 and the heating device outlet 53 are also configured as pipe joints, at which passage sections 11, suitably configured as pipes, can be arranged for supply or transfer functions. The heating device 54 is advantageously suitable for treating the process gas 2 by cooling or heating during the drying stage of the process material processing, particularly by setting a temperature range of 10°C to 250°C, preferably at least above ambient temperature.

[0069] Furthermore, the process gas processing equipment 1 includes a humidification device 55, configured as equipment component 4, located particularly downstream of the process gas dehumidification device 18 and upstream of the process gas temperature control device 19. This humidification device has a humidification inlet 56 and a humidification outlet 57. The humidification inlet 56 and the humidification outlet 57 are preferably also configured as pipe joints, at which passage sections 11, suitably configured as pipes, can be arranged for supply or transfer functions. The process gas 2 can be humidified by the humidification device 55, and the relative humidity of the process gas 2 can be set to a value higher than the relative humidity of the process gas 2 entering the process gas processing equipment 1 at the process gas inlet 7.

[0070] Furthermore, the process gas temperature control device 19 has a bypass unit 60, configured as a component 4, connected in parallel with the temperature control unit 51. This bypass unit has a bypass inlet 58 and a bypass outlet 59. The bypass unit 60 also has a cooling unit 63, particularly a heat exchanger, configured as a component 4, for the process gas 2. This cooling unit 63 has a cooling unit inlet 61 and a cooling unit outlet 62. The cooling unit inlet 61 and cooling unit outlet 62 are preferably configured as pipe joints, at which passage sections 11, suitably configured as pipes, can be arranged for supplying or transferring the gas. A valve assembly 64, configured as a component 4, is constructed at the bypass unit 60 for selectively allowing flow through either the temperature control unit 51 or the bypass unit 60, wherein the cooling unit 63 is a component of the bypass unit 60. The bypass unit 60 is advantageously configured as a passage section 11 in the form of a pipe. As valve assembly 64, two three-way valves or other valve assemblies 64 suitable for selectively flowing through temperature control unit 51 or bypass unit 60 may be used.

[0071] The process gas treatment equipment 1 additionally includes a first measuring device 66, which has a relative humidity sensor 65 for measuring the relative humidity of the process gas 2. The first measuring device 66 is arranged downstream of the process gas dehumidification equipment 18. The relative humidity in the process gas 2 is measured by the relative humidity sensor 65 and transmitted as an actual value to the control device 67 in the form of a sensor signal. The control device 67 is configured to independently adjust and / or control all equipment components 4. The corresponding inlets and outlets of the equipment components 4 are determined according to... Figures 1 to 7 In the embodiment shown, the components are connected to each other via channel sections 11, which are preferably in the form of pipes. Peripheral devices located upstream of the process gas inlet 7 and downstream of the process gas outlet 10 can also be connected via channel sections 11, which are preferably in the form of pipes.

[0072] In addition, the first measuring device 66 also has a temperature sensor 68 for measuring the temperature of the process gas 2. The temperature value is also transmitted to the control device 67 as an actual temperature value in the form of a sensor signal. The relative humidity sensor and the temperature sensor 68 of the first measuring device 66 are suitably constructed as structural units.

[0073] The actual absolute humidity value of process gas 2, i.e., absolute humidity, is determined based on the relative humidity measured at relative humidity sensor 69 and the temperature measured at temperature sensor 68—as already explained. The determination of the actual absolute humidity value is performed in either the first measuring device 66 or the control device 67. If the actual absolute humidity value is determined in the first measuring device 66, it is transmitted to the control device 67 as a sensor signal.

[0074] The humidity, preferably absolute humidity, of the process gas 2 flowing through the process gas treatment equipment 1 is regulated by the control device 67 in conjunction with the first measuring device 66. Advantageously, the humidity is regulated at least during the drying stage. This regulation is based on relative humidity or absolute humidity, wherein regulation based on absolute humidity is preferred because absolute humidity is independent of temperature.

[0075] For this purpose, a first absolute humidity comparison is performed in the control device 67 between the absolute humidity rating stored in the control device 67 and the actual absolute humidity value, wherein, as described, the actual absolute humidity value is determined based on the relative humidity value measured by the relative humidity sensor 65 of the first measuring device 66 and the temperature value measured by the associated temperature sensor 68.

[0076] Taking into account the first absolute humidity comparison, the control device 67 then transmits the absolute humidity adjustment parameters to the process gas dehumidification device 18 in order to adjust the absolute humidity of the process gas 2.

[0077] Different feasible solutions exist for drying to lower humidity levels, wherein the drying is limited by cooling water via a condensation dehumidification unit 26. An adsorption dehumidification unit is limited by the capacity of the desiccant, wherein the absorbed moisture can be regulated by regenerating the desiccant.

[0078] The absolute humidity of process gas 2 is regulated by process gas dehumidification equipment 18, which is controlled by control device 67, so that the actual absolute humidity value and the absolute humidity rating are advantageously consistent within a tolerance range of less than or equal to 3%. The above description applies to relative humidity.

[0079] When the actual absolute humidity value is less than the rated absolute humidity value during absolute humidity comparison, the process gas 2 is humidified. For this purpose, the process gas 2 is suitably heated by the preheating unit 48, so that the temperature of the process gas 2 can absorb the supplied moisture. The moisture is then supplied to the process gas via the humidification device 55. For this purpose, the first measuring device 66 is advantageously also arranged upstream of the process gas temperature control device 19.

[0080] Furthermore, a second measuring device 70 is arranged upstream of the process gas dehumidification device 18, which has a relative humidity sensor 69 for measuring the relative humidity of the process gas 2. The relative humidity in the process gas 2 is measured by the relative humidity sensor 69 and transmitted to the control device 67 as another actual value in the form of a sensor signal.

[0081] The second measuring device 70 preferably also has a temperature sensor 71 for measuring the temperature of the process gas 2, wherein the relative humidity sensor 69 and the temperature sensor 71 of the second measuring device 70 are advantageously configured as structural units. In the case where the actual absolute humidity value is determined in the second measuring device 70, the actual absolute humidity value is transmitted as a sensor signal to the control device 67.

[0082] Each component 4 of the process gas handling equipment 1 can be switched on and / or off via a second adjustment and / or control based on the second measuring device 70. For this purpose, a second measuring device 70 is arranged upstream of the process gas dehumidification equipment 1, having a relative humidity sensor 69 for measuring the relative humidity of the process gas 2 and a temperature sensor 71 for measuring the temperature of the process gas 2. A second absolute humidity comparison is performed in the control device 67 between a nominal absolute humidity value stored in the control device 67 and an actual absolute humidity value, which is suitably distinct from the absolute humidity rating used for humidity adjustment. The actual absolute humidity value is determined based on the relative humidity value measured by the relative humidity sensor 69 of the second measuring device 70 and the temperature value measured by the associated temperature sensor 71.

[0083] The determination of the actual absolute humidity value is preferably carried out in the second measuring device 70 or the control device 67.

[0084] Taking into account the second absolute humidity comparison, control device 67 transmits absolute humidity adjustment parameters to each device component 4 to turn on and / or off the corresponding device component 4 of the process gas handling equipment 1. This makes it possible to turn on and / or off each individual device component 4 during method execution, but particularly the condensation dehumidification unit 26 and / or the adsorption dehumidification unit 29 and / or the humidification device 55. Surprisingly, significant energy savings and improved treatment of the process gas 2, especially in terms of temperature and humidity, are achieved through this modern, innovative, and forward-looking adjustment and / or control technology.

[0085] The adjustment and / or control of equipment component 4 can be based on absolute humidity as described above, or similarly on relative humidity. Adjustment and / or control via absolute humidity is preferred here, as absolute humidity is independent of temperature. Suitablely, this should be within a tolerance range of 3% or less.

[0086] The method for treating process gas 2 for processing materials in process processing unit 3 is carried out in process processing equipment 1, as explained in more detail below:

[0087] The processing of process gas 2 for processing process materials in process unit 3 (especially fluidizing unit 5 or coating unit 6) is divided into two successive process stages: a drying stage and a cooling stage. Therefore, at the end of each processing of the process material, there is a cooling stage. This cooling stage is necessary to prevent moisture, especially in the form of water, from "leaking" from the processed process material, as otherwise the moisture would condense and cause or potentially cause undesirable agglomeration of the process material in process unit 3. Therefore, during the drying stage of processing the process material in process unit 3, the temperature control unit 51 of the process gas temperature control device 19 is passed through, and during the cooling stage, the bypass unit 60, which has a cooling unit 63, is passed through. The bypass unit 60 does not pass through the temperature control unit 51, and vice versa. Therefore, in addition to the advantage of significantly reducing energy consumption throughout the entire processing of the process materials, the method for processing process gas 2 in the process gas processing equipment 1 also has the advantage that the cooling time for process gas 2 (especially ambient air) in the cooling stage immediately following the drying stage of the process materials is shortened by arranging the cooling unit 63 in the bypass unit 60. Thus, the process materials can also be cooled faster and more energy-efficiently.

[0088] During the processing of process materials in process unit 3, process gas 2 enters process processing equipment 1 through process gas inlet 7 and flows through process processing equipment 1 and process unit 3 connected to process processing equipment 1. Process gas 2 is conveyed by process gas conveying equipment 12. In addition to process gas dehumidification equipment 18 and process gas temperature control equipment 19, process gas 2 also flows through humidification equipment 55, which is arranged, if necessary, downstream of process gas dehumidification equipment 18 and upstream of process gas temperature control equipment 19. Humidification equipment 55 enables humidification of process gas 2 and also enables adjustment of the relative humidity of process gas 2, the value of which is greater than the relative humidity of process gas 2 entering process gas processing equipment 1 at process gas inlet 7. If humidification equipment 55 is used, process gas 2 is advantageously heated by preheating unit 48 to a temperature that ensures process gas 2 can absorb moisture supplied through humidification equipment 55 before humidification. In this method, the humidity of process gas 2 flowing through process gas processing equipment 1 is adjusted, especially at least during the drying stage. The humidity of process gas 2 can be adjusted using either relative humidity or absolute humidity. It is preferred to adjust it using absolute humidity because absolute humidity, unlike relative humidity, is independent of the temperature of process gas 2.

[0089] Therefore, the first measuring device 66 preferably includes a relative humidity sensor 65 for measuring the relative humidity of the process gas 2 and a temperature sensor 68 for measuring the temperature of the process gas 2. The relative humidity value and temperature value are transmitted to the control device 67 as sensor signals.

[0090] A first absolute humidity comparison is performed in control device 67 between a stored absolute humidity rating and an actual absolute humidity value, wherein the actual absolute humidity value is determined based on the relative humidity value measured by relative humidity sensor 65 of first measuring device 66 and the temperature value measured by associated temperature sensor 68. The actual absolute humidity value is suitably determined in either first measuring device 66 or control device 67. Taking into account the first absolute humidity comparison, control device 67 transmits absolute humidity adjustment parameters to process gas dehumidification device 1 to adjust the absolute humidity of process gas 2. Suitably, the humidity is adjusted within a tolerance of ±3% of the rating.

[0091] Humidification, if necessary, is also performed via the aforementioned adjustment using the first measuring device 66, as previously explained.

[0092] If the process gas dehumidification device 18 has an adsorption dehumidification unit 29 for drying the process gas 2, particularly configured as a drying wheel 31, then the adsorption dehumidification unit has a regeneration unit 34 that at least partially regenerates the adsorption dehumidification unit 29. This process gas dehumidification device 18 is particularly suitable for… Figures 2 to 7 As shown in the image.

[0093] Regenerated gas 35 flows upstream of adsorption dehumidification unit 29 through regenerated gas heating device 42, which dries and heats the regenerated gas 35 so that it can absorb moisture from adsorption dehumidification unit 29. The regenerated gas 35 is dried and heated to such an extent that adsorption dehumidification unit 29 dries the process gas 2, which also flows through adsorption dehumidification unit 29, to or can be dried to a fixed relative humidity. Specifically, control device 67 therefore adjusts and / or controls regenerated gas heating device 42 based on a first absolute humidity comparison between a stored absolute humidity rating and an actual absolute humidity value. Here, regenerated gas 35 preferably flows through adsorption dehumidification unit 29, such as... Figure 6 As shown, it flows counter-currently to process gas 2.

[0094] Furthermore, the process gas dehumidification device 18 has a preheating unit 48, which is suitably arranged upstream of the condensation dehumidification unit 26. The preheating unit 48 heats the process gas 2 entering the process gas processing device 1 through the process gas inlet 7 to prevent the condensation dehumidification unit 26 from freezing. The preheating unit 48 serves specifically as an "anti-freeze heater" for the condensation dehumidification unit 26. When the regeneration section 36 is configured as a closed loop 45, the moisture absorbed in the preheating unit 48 during the regeneration of the adsorption dehumidification unit 29 is condensed from the regeneration gas 35.

[0095] Each individual component 4 of the process gas handling equipment 1 can be switched on and / or off. For this purpose, a second measuring device 70 is arranged upstream of the process gas dehumidification equipment 18. This second measuring device 70 has a relative humidity sensor 69 for measuring the relative humidity of the process gas 2 and a temperature sensor 71 for measuring the temperature of the process gas 2. A second absolute humidity comparison is performed in the control device between the absolute humidity rating and the actual absolute humidity value of the second measuring device 70, wherein the actual absolute humidity value is determined based on the relative humidity value measured by the relative humidity sensor 69 of the second measuring device 70 and the temperature value measured by the associated temperature sensor 71. Suitably, the determination of the actual absolute humidity value is performed in the second measuring device 70 or the control device 67. Therefore, taking into account the second absolute humidity comparison, the control device 67 transmits absolute humidity adjustment parameters to each component 4 to switch on and / or off the corresponding component 4 of the process gas handling equipment 1. Surprisingly, through this state-of-the-art, innovative, and forward-looking control technology, significant energy savings and improved handling of the relative humidity and temperature of the process gas 2 can be achieved. Suitablely, the cost of operating the device can be significantly reduced by disconnecting and / or connecting equipment component 4.

[0096] Control device 67 determines which equipment components 4 of the process gas handling equipment 1 are switched on and / or switched off based on absolute humidity comparisons in order to dehumidify the process gas 2. The absolute humidity ratings used in practice when operating the process gas handling equipment 1 are listed below:

[0097] - When the absolute humidity rating is greater than or equal to 8 g / m³, dehumidification is performed only via the condensation dehumidification unit 26; the adsorption dehumidification unit 29 is shut off when it is present.

[0098] - When the absolute humidity rating is less than 8 g / m³, dehumidification is performed only through the adsorption dehumidification unit 29; the condensation dehumidification unit 26 is shut off when it is present.

[0099] - When the absolute humidity rating is less than 8 g / m³ and the difference between the actual absolute humidity value and the absolute humidity rating is greater than or equal to 6 g / m³, dehumidification is performed via the condensation dehumidification unit 26 and the adsorption dehumidification unit 29.

[0100] - When the actual absolute humidity value is less than the rated absolute humidity value, humidification is performed via humidification device 55.

Claims

1. A process gas processing device (1) for a process gas (2), the process gas being used to process process materials in a process apparatus (3), the process gas processing device having: a process gas inlet (7) and a process gas outlet (10) fluidly connected to the process apparatus (3), wherein, The process gas (2) flows in a processing section (13) extending from the process gas inlet (7) to the process gas outlet (10); a process gas dehumidification device (18) is configured as a device component (4) along the flow direction of the process gas (2); and a process gas temperature control device (19) configured as a device component (4) is arranged downstream of the process gas dehumidification device (18), wherein the process gas dehumidification device (18) has a dehumidification device inlet (20) and a dehumidification device. The process gas temperature control device (19) has an outlet (21) and a temperature control device inlet (22) and a temperature control device outlet (23), wherein the process gas temperature control device (19) has a temperature control unit (51) for the process gas (2) forming a device component (4), a cooling unit (63) for the process gas (2) forming a device component (4), and a bypass unit (60) for the device component (4) connected in parallel with the temperature control unit (51). The temperature control unit has a temperature control unit inlet (49) and a temperature control unit outlet (50), the cooling unit has a cooling unit inlet (61) and a cooling unit outlet (62), the bypass unit has a bypass inlet (58) and a bypass outlet (59), wherein a valve assembly (64) configured as a device component (4) is arranged at the bypass unit (60) for selectively flowing through the temperature control unit (51) or the bypass unit (60); and a first measuring device (66) having a relative humidity sensor (65) for measuring the relative humidity of the process gas (2), wherein the first measuring device (66) is arranged downstream of the process gas dehumidification device (18); and a control device (67), characterized in that the cooling unit (63) is a component of the bypass unit (60), wherein the process device (3) is configured as a device component (4) of the process gas processing device (1) and is configured as a fluidizing device (5) or a coating device (6).

2. The process gas processing equipment (1) according to claim 1, characterized in that, The process gas handling equipment (1) has a process gas conveying device (12) configured as equipment component (4).

3. The process gas processing equipment (1) according to claim 2, characterized in that, The process gas delivery device (12) is arranged upstream and / or downstream of the process unit (3).

4. The process gas handling equipment (1) according to any one of claims 1 to 3, characterized in that, The process gas dehumidification device (18) has a condensation dehumidification unit (26) configured as a device component (4) and / or an adsorption dehumidification unit (29) configured as a device component (4), the condensation dehumidification unit having a condensation dehumidification unit inlet (24) and a condensation dehumidification unit outlet (25), and the adsorption dehumidification unit having an adsorption dehumidification unit inlet (27) and an adsorption dehumidification unit outlet (28).

5. The process gas handling equipment (1) according to any one of claims 1 to 3, characterized in that, The process gas dehumidification device (18) has a condensation dehumidification unit (26) configured as a device component (4) and / or an adsorption dehumidification unit (29) configured as a device component (4), the condensation dehumidification unit having a condensation dehumidification unit inlet (24) and a condensation dehumidification unit outlet (25), the adsorption dehumidification unit having an adsorption dehumidification unit inlet (27) and an adsorption dehumidification unit outlet (28), wherein the condensation dehumidification unit (26) is arranged upstream of the adsorption dehumidification unit (29) on the processing section (13).

6. The process gas processing equipment (1) according to claim 4, characterized in that, The adsorption dehumidification unit (29) is constructed as a drying wheel (31).

7. The process gas processing equipment (1) according to claim 4, characterized in that, The adsorption dehumidification unit (29) has a regeneration unit (34) configured as a device component (4), the regeneration unit having a regeneration unit inlet (32) and a regeneration unit outlet (33), wherein regeneration gas (35) is conveyed by a regeneration gas conveying device (39) configured as a device component (4) having a regeneration gas conveying device inlet (37) and a regeneration gas conveying device outlet (38) on a regeneration section (36) extending from the regeneration unit inlet (32) to the regeneration unit outlet (33), and flows through a regeneration gas heating device (42) configured as a device component (4) and the adsorption dehumidification unit (29) in the flow direction of the regeneration gas (35), the regeneration gas heating device having a regeneration gas heating device inlet (40) and a regeneration gas heating device outlet (41), and the adsorption dehumidification unit having a regeneration gas inlet (43) and a regeneration gas outlet (44).

8. The process gas processing equipment (1) according to claim 7, characterized in that, The regeneration section (36) is constructed as a closed loop (45).

9. The process gas handling equipment (1) according to any one of claims 1 to 3, characterized in that, The process gas dehumidification device (18) has a preheating unit (48) configured as a device component (4), the preheating unit having a preheating unit inlet (46) and a preheating unit outlet (47).

10. The process gas processing equipment (1) according to claim 4, characterized in that, The process gas dehumidification device (18) has a preheating unit (48) configured as a device component (4), the preheating unit having a preheating unit inlet (46) and a preheating unit outlet (47), the preheating unit being arranged upstream of the condensation dehumidification unit (26) and / or the adsorption dehumidification unit (29).

11. The process gas processing equipment (1) according to claim 7, characterized in that, The process gas dehumidification device (18) has a preheating unit (48) configured as a device component (4), the preheating unit having a preheating unit inlet (46) and a preheating unit outlet (47), wherein the preheating unit (48) is associated with the regeneration unit (34), wherein the preheating unit (48) is arranged upstream of the regeneration gas heating device (42) and downstream of the regeneration gas conveying device (39) on the regeneration section (36) configured as a closed loop (45), whereby the process gas (2) is heated as it flows through the preheating unit (48), and the regeneration gas (35) is cooled as it flows through the preheating unit (48).

12. The process gas processing equipment (1) according to claim 7, characterized in that, The regenerated gas conveying device (39) is arranged on the regeneration section (36) downstream of the adsorption dehumidification unit (29).

13. The process gas handling equipment (1) according to any one of claims 1 to 3, characterized in that, The first measuring device (66) is arranged upstream of the process gas temperature control device (19).

14. The process gas handling equipment (1) according to any one of claims 1 to 3, characterized in that, The first measuring device (66) also has a temperature sensor (68) for measuring the temperature of the process gas (2).

15. The process gas processing equipment (1) according to claim 14, characterized in that, The relative humidity sensor (65) and temperature sensor (68) of the first measuring device (66) are constructed as structural units.

16. The process gas handling apparatus (1) according to any one of claims 1 to 3, characterized in that, The temperature control unit (51) has a heating device (54) configured as a device component (4), the heating device having a heating device inlet (52) and a heating device outlet (53).

17. The process gas handling apparatus (1) according to any one of claims 2 to 3, characterized in that, The process gas conveying device (12) is arranged downstream of the process gas dehumidification device (18) and upstream of the process gas temperature regulating device (19).

18. The process gas handling apparatus (1) according to any one of claims 1 to 3, characterized in that, A second measuring device (70) is arranged upstream of the process gas dehumidification device (18), the second measuring device having a relative humidity sensor (69) for measuring the relative humidity of the process gas (2).

19. The process gas processing equipment (1) according to claim 18, characterized in that, The second measuring device (70) also has a temperature sensor (71) for measuring the temperature of the process gas (2).

20. The process gas processing equipment (1) according to claim 19, characterized in that, The relative humidity sensor (69) and temperature sensor (71) of the second measuring device (70) are constructed as structural units.

21. The process gas handling apparatus (1) according to any one of claims 1 to 3, characterized in that, The process gas handling equipment (1) has a humidification device (55) configured as an equipment component (4), the humidification device having a humidification device inlet (56) and a humidification device outlet (57).

22. The process gas handling equipment (1) according to any one of claims 1 to 3, characterized in that, The process gas treatment equipment (1) has a humidification device (55) arranged downstream of the process gas dehumidification device (18) and upstream of the process gas temperature control device (19), which is constructed as an equipment component (4), the humidification device having a humidification device inlet (56) and a humidification device outlet (57).

23. A method for processing a process gas (2) in a process gas processing apparatus (1), the process gas being used to process a process material in a process unit (3) during a drying stage and a cooling stage, the process gas processing apparatus having: a process gas inlet (7) and a process gas outlet (10) fluidly connected to the process unit (3), wherein, The process gas (2) flows in a processing section (13) extending from the process gas inlet (7) to the process gas outlet (10); a process gas dehumidification device (18) configured as a component (4) along the flow direction of the process gas (2) and a process gas temperature control device (19) configured as a component (4) and arranged downstream of the process gas dehumidification device (18), wherein the process gas dehumidification device (18) has a dehumidification device inlet (20) and a dehumidification device outlet (21), and the process gas temperature control device (19) The process gas temperature control device (19) has a temperature control device inlet (22) and a temperature control device outlet (23), and wherein the process gas temperature control device (19) has a temperature control unit (51) for the process gas (2) constituting the device component (4), a cooling unit (63) for the process gas (2) constituting the device component (4), and a bypass unit (60) for the device component (4) connected in parallel with the temperature control unit (51). The temperature control unit has a temperature control unit inlet (49) and a temperature control unit outlet (50), and the cooling unit has a cooling unit outlet. The bypass unit has a bypass inlet (58) and a bypass outlet (59), wherein a valve assembly (64) configured as a device component (4) is arranged at the bypass unit (60) for selectively flowing through the temperature control unit (51) or the bypass unit (60); and a first measuring device (66) having a relative humidity sensor (65) for measuring the relative humidity of the process gas (2), wherein the first measuring device (66) is arranged in the process gas dehumidification Downstream of the device (18); and control device (67), characterized in that the cooling unit (63) is a component of the bypass unit (60), and wherein, during the processing of process materials in the process apparatus (3), the temperature control unit (51) flows through the drying stage, and the bypass unit (60) having the cooling unit (63) flows through the cooling stage, wherein the process apparatus (3) is configured as a component (4) of the process gas processing equipment (1) and is configured as a fluidizing device (5) or a coating device (6).

24. The method according to claim 23, characterized in that, Adjust the humidity of the process gas (2) flowing through the process gas processing equipment (1).

25. The method according to claim 24, characterized in that, The first measuring device (66) has a temperature sensor (68) for measuring the temperature of the process gas (2), and performs a first absolute humidity comparison between an absolute humidity rating and an absolute humidity actual value in the control device (67), wherein the absolute humidity actual value is determined based on the relative humidity value measured by the relative humidity sensor (65) of the first measuring device (66) and the temperature value measured by the associated temperature sensor (68).

26. The method according to claim 25, characterized in that, The actual value of absolute humidity is determined in the first measuring device (66) or the control device (67).

27. The method according to claim 25 or 26, characterized in that, The process gas treatment equipment (1) has a humidification device (55) configured as equipment component (4), and the control device (67) transmits absolute humidity adjustment parameters to the process gas dehumidification equipment (18) and / or the humidification device (55) in consideration of the first absolute humidity comparison, so as to adjust the absolute humidity of the process gas (2).

28. The method according to any one of claims 24 to 26, characterized in that, The humidity is adjusted at least during the drying phase.

29. The method according to any one of claims 23 to 26, characterized in that, The process gas (2) is humidified using a humidification device (55).

30. The method according to any one of claims 23 to 26, characterized in that, The process gas (2) is humidified by means of a humidification device (55), which is arranged downstream of the process gas dehumidification device (18) and upstream of the process gas temperature control device (19).

31. The method according to any one of claims 23 to 26, characterized in that, The process gas dehumidification device (18) has an adsorption dehumidification unit (29), which has a regeneration unit (34), wherein the adsorption dehumidification unit (29) is at least partially regenerated by the regeneration unit (34).

32. The method according to claim 31, characterized in that, The regeneration unit (34) has a regeneration gas heating device (42) that heats the regeneration gas (35) so that the regeneration gas (35) absorbs moisture as it flows through the adsorption dehumidification unit (29), thereby drying and regenerating the adsorption dehumidification unit (29) at least partially.

33. The method according to claim 32, characterized in that, The regenerated gas (35) flows countercurrently through the adsorption dehumidification unit (29) relative to the process gas (2).

34. The method according to any one of claims 23 to 26, characterized in that, The process gas dehumidification equipment (18) has a preheating unit (48).

35. The method according to any one of claims 23 to 26, characterized in that, The process gas dehumidification device (18) has a preheating unit (48) and a condensation dehumidification unit (26) configured as a device component (4), wherein the preheating unit (48) is arranged upstream of the condensation dehumidification unit (26), wherein the preheating unit (48) heats the process gas (2) entering the process gas processing device (1) via the process gas inlet (7) in order to prevent the condensation dehumidification unit (26) from freezing, or heats the process gas (2) for humidifying the process gas (2).

36. The method according to any one of claims 23 to 26, characterized in that, Each equipment component (4) of the process gas handling equipment (1) is capable of being switched on and / or off.

37. The method according to claim 36, characterized in that, A second measuring device (70) is arranged upstream of the process gas dehumidification device (18). The second measuring device has a relative humidity sensor (69) for measuring the relative humidity of the process gas (2) and a temperature sensor (71) for measuring the temperature of the process gas (2). A second absolute humidity comparison between an absolute humidity rating and an absolute humidity actual value is performed in the control device (67). The absolute humidity actual value is determined based on the relative humidity value measured by the relative humidity sensor (69) of the second measuring device (70) and the temperature value measured by the associated temperature sensor (71).

38. The method according to claim 37, characterized in that, The actual absolute humidity value is determined in the second measuring device (70) or the control device (67).

39. The method according to claim 37, characterized in that, The control device (67) can transmit absolute humidity adjustment parameters to each device component (4) in consideration of the second absolute humidity comparison, so as to turn on and / or turn off the corresponding device component (4) of the process gas handling equipment (1).

40. The method according to any one of claims 23 to 26, characterized in that, The process gas processing equipment (1) has a process gas delivery device (12) configured as an equipment component (4), which delivers the process gas (2) in a processing section (13) extending from the process gas inlet (7) to the process gas outlet (10).

Images