Mixing machine

Abstract

To provide a kneading machine capable of suppressing fogging of window components. [Solution] A kneader 100A for kneading fly ash containing moisture comprises a hollow housing 110, a rotating body (screw 120) disposed inside the housing 110 that kneads and conveys the material by rotating, a window member 140 provided on the upper surface of the housing 110 that allows the inside of the housing 110 to be seen through, and an exhaust port 114 formed on the upper surface of the housing 110 that allows gas inside the housing 110 to be discharged to the outside.

Description

Technical Field

[0001] The present invention relates to the technology of kneading machines for mixing multiple substances.

Background Art

[0002] Conventionally, the technology of kneading machines for mixing multiple substances has been known. For example, it is as described in Patent Document 1.

[0003] The kneading machine described in Patent Document 1 includes a casing and two rotating bodies (screws) arranged parallel to each other inside the casing. By rotating the screws, this kneading machine can convey the raw materials introduced into the casing in the axial direction of the screws while mixing them.

[0004] In such a kneading machine, in order to check the internal situation, there may be provided a window member (inspection window) for visually observing the inside from the outside of the casing. However, when the mixed raw materials contain moisture, the inside of the inspection window condenses and becomes cloudy due to the moisture, making it difficult to visually observe the inside of the casing, and there is room for improvement in this regard.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] One aspect of the present disclosure has been made in view of the above situation, and the problem to be solved is to provide a kneading machine capable of suppressing clouding of the window member.

Means for Solving the Problems

[0007] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0008] A kneader according to one aspect of the present disclosure is a kneader for kneading fly ash containing moisture, comprising: a hollow housing; a rotating body disposed inside the housing and rotating to knead and convey the material; a window member provided on the upper surface of the housing and allowing the inside of the housing to be seen through; and an exhaust port formed on the upper surface of the housing and capable of discharging gas from inside the housing to the outside.

[0009] Furthermore, the upper surface of the housing includes an inclined surface formed to slope upward toward the exhaust port.

[0010] Furthermore, the window member is installed on the inclined surface.

[0011] Furthermore, a kneader according to one aspect of the present disclosure further comprises a nozzle that ejects air within the housing in a direction along the window member and toward the exhaust port.

[0012] Furthermore, a kneader according to one aspect of this disclosure further comprises a blower that discharges the air inside the enclosure to the outside through the exhaust port.

[0013] Furthermore, a kneader according to one aspect of the present disclosure further comprises a nozzle that ejects air in a direction along the window member within the housing.

[0014] Furthermore, the window member has a multi-layered structure with spaces between the layers.

[0015] Furthermore, the window member has hydrophilic properties on at least the inner surface of the housing.

[0016] Furthermore, the aforementioned fly ash containing moisture is fly ash that has been mixed with a calcium-based agent, a heavy metal fixative, and water.

[0017] Also, the kneader according to one aspect of the present disclosure includes a housing formed in a hollow shape, a rotating body disposed inside the housing and kneading and conveying an object by rotation, a window member provided on the upper surface of the housing and allowing the inside of the housing to be seen through, and an exhaust port formed on the upper surface of the housing and capable of discharging the gas inside the housing to the outside.

Effects of the Invention

[0018] According to one aspect of the present disclosure, it is possible to suppress the clouding of the window member due to the condensation of moisture.

Brief Description of the Drawings

[0019] [Figure 1] Schematic diagram showing the overall configuration of an incineration treatment facility equipped with the kneader 100A according to the first embodiment. [Figure 2] Side view showing the kneader and the treatment object pit. [Figure 3] Side view showing the kneader according to the first embodiment. [Figure 4] Plan view showing the kneader according to the first embodiment. [Figure 5] Side view showing the kneader according to the second embodiment. [Figure 6] Plan view showing the kneader according to the second embodiment. [Figure 7] (a) Side cross-sectional view showing the arrangement of the ejection part of the kneader according to the second embodiment. (b) Side cross-sectional view showing the arrangement of the ejection part and the suction part of the kneader according to the modified example. [Figure 8] Side view showing the kneader according to the third embodiment.

Modes for Carrying Out the Invention

[0020] Hereinafter, with reference to FIG. 1, an outline of an incineration treatment facility 1 provided with a kneader 100A according to the first embodiment will be described.

[0021] Incineration facility 1 is a facility for incinerating combustible waste. Incineration facility 1 mainly consists of a platform 2, a waste pit 3, a crane 4, a hopper 5, an incinerator 6, a stoker 7, an ash conveyor 8, an ash pit 9, a boiler 10, an economizer 11, a cooling tower 12, a dust collector 13, a slaked lime injection device 14, an induced draft fan 15, a chimney 16, a fly ash silo 17, a mixer 100A, a chelating agent supply device 18, and a processed material pit 19, etc.

[0022] Garbage trucks that have collected waste can load it from platform 2 into waste pit 3. The waste collected in waste pit 3 is then loaded into hopper 5 by crane 4 and guided into incinerator 6.

[0023] Incineration air is supplied to the incinerator 6 from below the stoker 7. The waste is incinerated in the incinerator 6. The ash generated by incinerating the waste is transported to the ash pit 9 by the ash conveyor 8.

[0024] The exhaust gas discharged from the incinerator 6 is sequentially guided to the boiler 10, economizer 11, cooling tower 12, and dust collector 13. The heat from the exhaust gas is recovered in the boiler 10 and economizer 11. Then, in the cooling tower 12, water is sprayed onto the exhaust gas to lower its temperature.

[0025] As the exhaust gas is guided from the cooling tower 12 to the dust collector 13, a calcium-based chemical agent (e.g., slaked lime powder) is injected from the slaked lime injection device 14. This chemical agent reacts with the acidic gases in the exhaust gas, neutralizing them. The fly ash in the exhaust gas contains both the neutralized and unreacted chemical agents, which are collected by the dust collector 13. The exhaust gas is then sent to the chimney 16 by the induced draft fan 15 and discharged from the chimney 16.

[0026] The fly ash collected by the dust collector 13 is collected in the fly ash silo 17 and supplied in predetermined amounts to the mixer 100A. The mixer 100A is also supplied with a chelating agent and dilution water by a chelating agent supply device 18 to prevent the leaching of heavy metals from the fly ash. The mixer 100A chelates the fly ash by mixing it with the chelating agent and dilution water, and the treated material, which is humidified and mixed fly ash, is discharged into the treated material pit 19. A chelating agent is a type of heavy metal fixative that immobilizes heavy metals from fly ash to prevent their leaching, and is widely used as a heavy metal fixative. Other heavy metal fixatives include, for example, iron-based ones such as ferrous chloride, ferrous sulfate, and aluminum sulfate.

[0027] Next, the specific configuration of the kneader 100A according to the first embodiment will be described using Figures 2 to 4. In the following description, the directions indicated by arrows U, D, L, R, F, and B in the figures will be defined as the upward, downward, left, right, forward, and backward directions, respectively.

[0028] The mixing machine 100A mainly comprises a housing 110, a screw 120, a motor 130, a window member 140, an exhaust pipe 150, a camera 160, and a floodlight 170.

[0029] The casing 110 shown in Figures 3 and 4 forms the outer casing of the kneader 100A. The casing 110 is formed in a roughly rectangular parallelepiped shape or a roughly semi-cylindrical shape that is long from front to back. The casing 110 is formed in a hollow shape. The casing 110 has a fly ash introduction section 111, a processed material discharge port 112, an inclined surface 113, and an exhaust port 114, etc.

[0030] The fly ash introduction section 111 is the part that introduces fly ash supplied from the fly ash silo 17 into the housing 110. The fly ash introduction section 111 is formed in a cylindrical shape. The fly ash introduction section 111 is formed to extend vertically at the rear of the housing 110. The fly ash introduction section 111 is connected to the fly ash silo 17 directly or indirectly via conveying equipment (not shown).

[0031] The treated material discharge port 112 is for discharging fly ash (treated material) mixed with a chelating agent. The treated material discharge port 112 is formed on the bottom surface of the front of the housing 110. The treated material discharge port 112 is formed to penetrate the bottom surface of the housing 110 vertically. The treated material discharge port 112 is connected to the treated material pit 19.

[0032] The inclined surface 113 is the inclined portion of the upper surface of the housing 110. The inclined surface 113 is formed from the middle of the upper surface of the housing 110 to the front end. The inclined surface 113 is formed to slope upward toward the front. An opening 113a is formed in the inclined surface 113 to which a window member 140, which will be described later, is attached (see Figure 4). The opening 113a is formed to penetrate the inclined surface 113 vertically.

[0033] The exhaust port 114 shown in Figure 4 is for exhausting air from inside the housing 110. The exhaust port 114 is formed on the upper surface (inclined surface 113) of the housing 110. The exhaust port 114 is formed at the front end of the inclined surface 113. The exhaust port 114 is formed to penetrate the inclined surface 113 vertically.

[0034] The screw 120 shown in Figure 3 is used to mix fly ash and chelating agents, etc., within the housing 110 and transport them forward. The screw 120 is formed by a shaft member whose axis is oriented in the front-rear direction and blades arranged spirally on the shaft member. Two screws 120 (not shown) are installed side by side within the housing 110. For the sake of simplicity in illustration, the screw 120 is omitted from the illustrations other than Figure 3.

[0035] The motor 130 shown in Figures 3 and 4 is a drive source for driving the screw 120. The motor 130 is positioned laterally (to the left in the illustrated example) at the rear of the housing 110. The motor 130 is connected to the screw 120 via a power transmission means (e.g., a chain) not shown. This transmits the driving force of the motor 130 to the screw 120, allowing the screw 120 to rotate. The placement of the motor 130 is not particularly limited; for example, it can also be placed in series with the housing 110 (directly behind the housing 110).

[0036] The window member 140 is intended to allow the interior of the housing 110 to be seen from the outside. The window member 140 is positioned to close the opening 113a formed in the inclined surface 113 of the housing 110. The window member 140 is made of a light-transmitting material (for example, glass).

[0037] As shown in Figure 3, the window member 140 has a pair of light-transmitting members 141. The light-transmitting members 141 are plate-shaped members that are light-transmitting. The pair of light-transmitting members 141 are arranged parallel to each other with a gap between them. This creates a space between the pair of light-transmitting members 141. In this way, the window member 140 has a multi-layer structure with spaces between multiple layers (a pair of light-transmitting members 141). This makes it possible to suppress condensation on the inner surface of the window member 140 caused by the temperature difference between the inside and outside of the housing 110.

[0038] Furthermore, a coating layer 142 is formed on the lower surface of the window member 140 (the inner surface of the housing 110) to improve hydrophilicity. As a result, moisture adhering to the lower surface of the window member 140 will spread evenly across the lower surface of the window member 140 and is less likely to form water droplets (water beads).

[0039] The exhaust pipe 150 shown in Figure 3 guides the gas inside the housing 110, which is discharged from the exhaust port 114 of the housing 110, to the material pit 19. The exhaust pipe 150 is formed in a cylindrical shape. One end (lower end) of the exhaust pipe 150 is connected to the exhaust port 114 of the housing 110. The exhaust pipe 150 is formed to extend upward from the exhaust port 114. This is to promote exhaust by utilizing the fact that the generated water vapor is warm and flows upward. The other end (upper end) of the exhaust pipe 150 is connected to the side of the material pit 19.

[0040] Camera 160 is for photographing the inside of the housing 110. Camera 160 is positioned above the housing 110. Camera 160 is positioned so that its imaging direction faces the window member 140. This allows camera 160 to photograph the inside of the housing 110 through the window member 140. Camera 160 is connected to a control unit and a display unit, etc. (not shown). The image captured by camera 160 can be stored in the control unit. This allows the status of the processed object to be recorded as an image. In addition, the image captured by camera 160 can be displayed on the display unit. This allows the operator to check the status of the processed object.

[0041] The floodlight 170 shown in Figures 3 and 4 illuminates the inside of the housing 110. The floodlight 170 is positioned above the housing 110. The floodlight 170 is positioned so that the direction of light illumination faces the window member 140. As a result, the light emitted from the floodlight 170 illuminates the inside of the housing 110 through the window member 140, allowing the camera 160 to capture a clearer image.

[0042] In the kneader 100A configured in this way, fly ash is introduced into the casing 110 from the fly ash introduction section 111. A chelating agent and dilution water are also introduced into the casing 110 by a chelating agent supply device 18.

[0043] When the motor 130 is activated and the screw 120 rotates, the fly ash and chelating agent inside the casing 110 are mixed together and transported forward. The fly ash (processed material) mixed with the chelating agent is discharged from the processed material discharge port 112 into the processed material pit 19.

[0044] Furthermore, when the fly ash and chelating agent are mixed, the chemicals (such as slaked lime) in the fly ash mix with water, generating reaction heat and producing steam. In addition, because the exhaust gas temperature is around 160 degrees Celsius, and because fly ash often needs to be heated for storage to prevent it from solidifying when it absorbs moisture, the fly ash itself is also warmer than the ambient temperature, and adding moisture will generate steam. The steam generated from the treated material is guided upward and forward by the inclined surface 113, which slopes diagonally upward and forward. Since an exhaust port 114 (see Figure 4) is formed at the front end of the inclined surface 113, the steam guided by the inclined surface 113 flows into the exhaust pipe 150 through the exhaust port 114. The steam that flows into the exhaust pipe 150 is then guided to the treated material pit 19.

[0045] Thus, in the kneader 100A according to this embodiment, the steam generated from the material being processed is guided by the inclined surface 113, thereby suppressing the formation of condensation on the window member 140. This allows for proper illumination by the floodlight 170 and photography by the camera 160 through the window member 140. Furthermore, when an operator visually checks the inside of the housing 110 through the window member 140, the inside of the housing 110 can be easily seen.

[0046] In this embodiment, we have described the addition of a chelating agent and water to prevent the leaching of heavy metals from fly ash. However, if the sole purpose is humidification, only water may be added and the mixture may be humidified and kneaded. Alternatively, if there is sufficient moisture or the chelating agent has a high water content, only the chelating agent may be added and the mixture may be humidified and kneaded.

[0047] Next, the configuration of the kneader 100B according to the second embodiment will be described using Figures 5 to 7.

[0048] The difference between the kneader 100B according to the second embodiment and the kneader 100A according to the first embodiment is that it is equipped with a blower 210 and a discharge unit 220. The following will mainly explain this difference.

[0049] The blower 210 shown in Figure 5 is for promoting the flow of gas within the housing 110 via the exhaust pipe 150. The blower 210 is installed in the middle of the exhaust pipe 150. The blower 210 can blow air from the housing 110 toward the material pit 19.

[0050] The ejection section 220 shown in Figures 5, 6, and 7(a) is for ejecting air into the interior of the housing 110. The ejection section 220 mainly comprises an ejection pipe 221 and an intake port 222, etc.

[0051] The ejection pipe 221 guides outside air into the interior of the housing 110. The ejection pipe 221 is formed in a hollow (tubular) shape that extends to the left and right. The ejection pipe 221 is positioned to penetrate the housing 110 from left to right. The ejection pipe 221 is positioned just below the rear lower end of the window member 140. As shown in Figure 7(a), nozzles 221a for ejecting air are formed in the middle of the left and right ejection pipe 221. Multiple nozzles 221a are formed in the portion of the ejection pipe 221 that is located inside the housing 110. The nozzles 221a are formed to face forward and upward (parallel to the inclination direction of the window member 140). That is, the nozzles 221a can eject air in the direction toward the exhaust port 114.

[0052] The intake ports 222 shown in Figures 5 and 6 are for drawing outside air into the discharge pipe 221. The intake ports 222 are provided at both the left and right ends of the discharge pipe 221. The intake ports 222 are equipped with check valves (not shown) to prevent air from flowing back out of the housing 110 to the outside. This prevents gas generated inside the housing 110 from flowing out to the outside. The intake ports 222 can draw air into the discharge pipe 221 from a direction perpendicular to the discharge pipe 221 (in this embodiment, from the front and below). By providing intake ports 222 at both the left and right ends of the discharge pipe 221, uneven distribution of air discharged from the outlet 221a of the discharge pipe 221 can be prevented.

[0053] In the kneader 100B configured in this way, when the blower 210 is activated, air inside the housing 110 is drawn out to the material pit 19 via the exhaust pipe 150. Also, as negative pressure is created inside the housing 110, air from outside the housing 110 is introduced into the discharge pipe 221 from the intake port 222. The air introduced into the discharge pipe 221 is ejected from multiple outlets 221a toward the front and upward (along the window member 140).

[0054] In this way, the kneader 100B can forcibly create an airflow from the outside along the window member 140. This effectively suppresses the occurrence of fogging on the window member 140.

[0055] As a modified example of the kneader 100B according to the second embodiment, a suction unit 230 for sucking up the air ejected from the ejection unit 220 may be provided, as shown in Figure 7(b).

[0056] For example, the suction unit 230 includes a suction pipe 231 positioned just below the front upper end of the window member 140. The suction pipe 231 is provided with a plurality of suction ports 231a. A suction device (not shown) for sucking air from inside the housing 110 is also connected to the suction pipe 231.

[0057] This configuration allows for a stronger airflow along the window member 140. This effectively suppresses the formation of condensation on the window member 140.

[0058] Next, the configuration of the kneader 100C according to the third embodiment will be described using Figure 8.

[0059] The kneader 100C according to the third embodiment differs from the kneader 100B according to the second embodiment in that the inclination direction of the inclined surface 113 of the housing 110 is reversed front to back.

[0060] Specifically, the inclined surface 113 of the kneader 100C is formed from the middle of the front-rear upper surface to the front end of the housing 110. The inclined surface 113 is formed to slope upward toward the rear. In other words, the inclined surface 113 is formed to slope upward toward the upstream side in the flow direction of the material being processed inside the housing 110. The exhaust pipe 150 is connected to the rear upper end of the inclined surface 113. The ejection section 220 (ejection pipe 221) is positioned just below the front lower end of the window member 140.

[0061] In the kneader 100C configured in this way, steam generated from the material being processed is guided upward and backward by an inclined surface 113 that slopes diagonally upward and backward. The steam guided by the inclined surface 113 flows into the exhaust pipe 150. The steam that flows into the exhaust pipe 150 is guided to the material pit 19. Because the exhaust port 114 is located upward and backward, the material outlet 112, which serves as the air inlet, and the exhaust port 114 are positioned so as to sandwich the area directly above the steam source. This creates an airflow inside the machine that sandwiches the area directly above the steam source, reducing steam stagnation and making it easier to exhaust, thereby suppressing fogging of the window member 140.

[0062] Furthermore, similar to the kneader 100B of the second embodiment, when the blower 210 is activated, air inside the housing 110 is drawn out to the material pit 19 via the exhaust pipe 150. In addition, air is ejected from multiple nozzles 221a formed in the ejection pipe 221 toward the rear and upward (along the direction of the window member 140).

[0063] In this way, the kneader 100C can forcibly create an airflow along the window member 140. This effectively suppresses the occurrence of fogging on the window member 140.

[0064] As described above, the kneaders 100A, 100B, and 100C according to the above embodiment are Mixing machines 100A, 100B, and 100C for mixing fly ash containing moisture, A hollow housing 110, A rotating body (screw 120) is placed inside the housing 110 and rotates to knead and transport the object, A window member 140 is provided on the upper surface of the housing 110, allowing the interior of the housing 110 to be seen through, An exhaust port 114 is formed on the upper surface of the housing 110 and is capable of discharging gas from inside the housing 110 to the outside, It is equipped with the following features. This configuration makes it possible to suppress fogging of the window member 140. In other words, since water vapor inside the housing 110 can be discharged from the exhaust port 114, fogging of the window member 140 can be suppressed.

[0065] Furthermore, the top surface of the housing is It includes an inclined surface 113 that is formed to slope upward toward the exhaust port 114. By configuring it in this way, the inclined surface 113 can be used to guide water vapor towards the exhaust port 114, thereby effectively suppressing fogging of the window member 140.

[0066] Furthermore, the window member 140 is It is installed on the aforementioned inclined surface 113. By configuring it in this way, the inclined surface 113 can be used to guide water vapor towards the exhaust port 114, thereby effectively suppressing fogging of the window member 140.

[0067] Furthermore, the mixing machines 100B and 100C are, The housing 110 is further equipped with an ejection section 220 that ejects air in a direction along the window member 140 and toward the exhaust port 114. By configuring it in this way, an airflow is forcibly created that follows the window member 140 and is directed toward the exhaust port 114, thereby effectively suppressing fogging of the window member 140.

[0068] Furthermore, the mixing machines 100B and 100C are, The system further includes a blower 210 that discharges the air inside the housing 110 to the outside through the exhaust port 114. This configuration allows for more efficient expulsion of water vapor to the outside. This effectively suppresses fogging of the window component 140.

[0069] Furthermore, the mixing machines 100B and 100C are, The housing 110 is further equipped with a nozzle 220 that ejects air in a direction along the window member 140. By configuring it in this way, an airflow along the window member 140 can be forcibly created, effectively suppressing fogging of the window member 140.

[0070] Furthermore, the window member 140 is It has a multi-layered structure with spaces between the layers. By configuring it in this way, the thermal insulation of the window member 140 can be improved, and the occurrence of condensation can be suppressed.

[0071] Furthermore, the window member 140 is At least the inner surface of the housing 110 is hydrophilic. By configuring it in this way, moisture adhering to the window member 140 spreads evenly across the surface of the window member 140, making it less likely to form water droplets (water beads), thus making it easier to see inside the housing 110 through the window member 140.

[0072] Furthermore, the fly ash containing the aforementioned moisture, This is fly ash that has been mixed with calcium-based chemicals, heavy metal fixatives, and water. By configuring it in this way, fogging of the window member 140 can be suppressed in a kneader that mixes fly ash containing a calcium-based agent, a heavy metal fixative, and water.

[0073] Furthermore, the mixing machines 100A, 100B, and 100C are, A hollow housing 110, A rotating body (screw 120) is placed inside the housing 110 and rotates to knead and transport the object, A window member 140 is provided on the upper surface of the housing 110, allowing the interior of the housing 110 to be seen through, An exhaust port 114 is formed on the upper surface of the housing 110 and is capable of discharging gas from inside the housing 110 to the outside, It is equipped with the following features. This configuration makes it possible to suppress fogging of the window member 140. In other words, since water vapor inside the housing 110 can be discharged from the exhaust port 114, fogging of the window member 140 can be suppressed.

[0074] The screw 120 in this embodiment is one form of the rotating body according to the present invention. Another form is one in which a rod-shaped member is attached in a screw-like manner. Furthermore, the chelating agent according to this embodiment is one embodiment of the heavy metal fixing agent according to the present invention.

[0075] Although embodiments of the present invention have been described above, the present invention is not limited to the above configurations, and various modifications are possible within the scope of the invention as described in the claims.

[0076] For example, the structure (shape, size, etc.) of each part of the mixing machines 100A, 100B, and 100C is not particularly limited and can be changed as desired.

[0077] Furthermore, although the above embodiment shows an example in which an exhaust port 114 is formed on the inclined surface 113 of the housing 110, the position of the exhaust port 114 is not particularly limited. For example, the exhaust port 114 may be formed on a horizontal portion of the upper surface of the housing 110 (preferably the horizontal plane adjacent to the upper end of the inclined surface 113).

[0078] Furthermore, although the above embodiment shows an example in which one exhaust port 114 is formed, the present invention is not limited to this, and it is also possible to form multiple exhaust ports 114 on the upper part (top surface) of the housing 110.

[0079] Furthermore, although the above embodiment shows an example in which one inclined surface 113 is formed, the present invention is not limited to this, and it is also possible to form multiple inclined surfaces 113 in stages, for example.

[0080] Furthermore, in the above embodiment, an example was shown in which the kneaders 100A, 100B, and 100C are installed in the incineration facility 1 and used to knead fly ash to which a calcium-based agent has been added, a chelating agent, and water. However, the present invention is not limited to this, and the use of the kneaders is not particularly limited. For example, the kneaders can be used to knead fly ash containing at least moisture, regardless of whether or not a calcium-based agent and a heavy metal fixative are mixed in. Also, for example, the kneaders can be used to knead not only fly ash but also various other powders. In other words, the kneaders can be used for various purposes of mixing one or more substances. [Explanation of Symbols]

[0081] 1 Incineration facility 100 Mixing Machines 110 cabinets 113 Slope 114 Exhaust vent 120 Screw 140 Window components 150 Exhaust pipe 210 Blower 220 Spout part

Claims

1. A kneading machine for mixing fly ash containing moisture, A hollow housing, A rotating body is placed inside the aforementioned housing and rotates to knead and transport the object, A window member provided on the upper surface of the housing, which allows the inside of the housing to be seen through, An exhaust port is formed on the upper surface of the housing, which is capable of discharging gas from inside the housing to the outside, A mixing machine equipped with the following.

2. The upper surface of the aforementioned housing is It includes an inclined surface formed to slope upward toward the exhaust port, The kneading machine according to claim 1.

3. The aforementioned window member is Displaced on the aforementioned inclined surface, The kneader according to claim 2.

4. The housing further comprises an ejection section that ejects air in a direction along the window member and toward the exhaust port. The kneader according to claim 2 or claim 3.

5. The enclosure is further equipped with a blower that discharges the air inside the enclosure to the outside through the exhaust port. The kneading machine according to claim 1.

6. The housing further comprises a nozzle that ejects air in a direction along the window member. The kneading machine according to claim 1.

7. The aforementioned window member is It has a multi-layered structure with spaces between the layers. The kneading machine according to claim 1.

8. The aforementioned window member is At least the inner surface of the housing is hydrophilic, The kneading machine according to claim 1.

9. The aforementioned fly ash containing moisture, This is fly ash mixed with calcium-based chemicals, heavy metal fixatives, and water. The kneading machine according to claim 1.

10. A hollow housing, A rotating body is placed inside the aforementioned housing and rotates to knead and transport the object, A window member provided on the upper surface of the housing, which allows the inside of the housing to be seen through, An exhaust port is formed on the upper surface of the housing, which is capable of discharging gas from inside the housing to the outside, A mixing machine equipped with the following.

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