JP2001025798A - Sludge converter and sludge converting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deterioration of a obtained oily material or the lowering of its yield even when the quantity of gaseous products formed by the heat treatment of sludge is changed by controlling the pressure in a reaction part for heat treatment to a value proportional to the dry sludge treating speed. SOLUTION: The dry sludge 101 supplied from a sludge feeder 1 is charged into the atmospheric vaporization part 2 of a sludge converter at normal pressure contg. a low-oxygen atmosphere and heated to 250-500 deg.C by a heater 7a, conveyed by a sludge conveyor screw 9, heated, separated into a gaseous product 105 and char 102 and discharged. The gaseous product 105 is sorted in a gas sorting part 4a into gaseous products 106a and 106b. The gaseous product 106a is sent to a reaction part 3 at normal pressure contg. a low-oxygen atmosphere and heated to 250-500 deg.C by a heater 7b and brought into contact with char 103. The pressure in the reaction part 3 is detected by a pressure detecter 13 to regulate a blower regulator 12, and the revolving speed of a gas discharge blower 11a is controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sludge conversion apparatus for use in heat treatment of, for example, sewage sludge, particularly dry sludge, and a sludge conversion method for converting and reforming sludge.

[0002]

2. Description of the Related Art FIG. 9 is a conceptual diagram showing an apparatus for converting sludge disclosed in Japanese Patent Publication No. Hei 6-73680. FIG.
As shown in FIG. 7, as the dried sludge 301 supplied from the sludge feeder 201, dry sludge sufficiently dried to have a solid content of 80% or more is used. This sludge is put into the vaporization section 202 of the sludge heat treatment apparatus heated by the vaporization section heater 207a to 250 to 500 ° C. under normal pressure and low oxygen atmosphere, and is heated while being fed by the sludge transport screw 209. The organic components and moisture in the sludge are vaporized and discharged as a first gaseous product 305. On the other hand, the first char 3 which is a residue after the organic components and moisture are vaporized
02 is the reaction unit 20 by the sludge conveying screw 209.
It is sent to 3. The transport screw 209 is provided with a plurality of partial vertical baffles 91 in the course of sending the first char 302 from the vaporizing section 202 to the reaction section 203, and has a function of preventing gaseous products from passing except for leakage. It has. Here, the baffle plate 91 is a sludge conveying screw 209.
Are arranged in parallel with the direction in which the rotation axis extends, for example, at a plurality of locations at equal intervals of 60 ° about the rotation axis.

[0003] A first gaseous product 305 is adjusted by a gas regulator 204 and is sent to a reaction section 203 as a second gaseous product 306. Second gaseous product 306
Further, similarly to the vaporization section 202, in a reaction section 203 heated to 250 to 500 ° C. in a normal pressure and a low oxygen atmosphere, the reaction section 203 is brought into contact with the second char 303 sent to the reaction section 203 to perform decarboxylation. A reaction such as deamination is advanced, the molecular weight of the second gaseous product 306 is reduced, and the third gaseous product 307 is discharged. In the reaction unit 203,
In addition to the third gaseous product 307, the third char 303a that has contributed to the reaction is discharged.

The third gaseous product 307 is supplied to the condenser 20
5 separates into a mixed liquid 311 in which an oily substance (product oil) and an aqueous solution (reaction water) containing an organic acid are mixed, and a non-condensable gas 308 which is a combustible gas mainly composed of carbon dioxide. You. Part of the gas 310 of the non-condensable gas 308 is used by the circulation blower 206 for gas circulation in the vaporizing section 202, and the remaining non-condensable gas 309 is taken out of the system.

In FIG. 9, reference numeral 207b denotes a reaction section heater provided in the reaction section 203, 208 denotes a sludge conveyance motor, and 210 denotes a sludge conveyance pad.

[0006]

In the apparatus according to the prior art, since the size of the vessel of the reaction section 203 is fixed, the amount of the second gaseous product 306 generated when the dry sludge treatment rate increases is increased. , The residence time in the reaction section 203 is shortened, the reaction does not proceed sufficiently, and the viscosity of the oily substance does not decrease.

[0007] Conversely, if the drying sludge treatment speed decreases,
The residence time of the second gaseous product 306 is prolonged, and the oily substance is excessively decomposed, and part of the oily substance becomes a water-soluble substance or a non-condensable gas, and the yield of the oily substance as a product oil decreases. As described above, the conventional sludge conversion apparatus has a drawback that the optimum drying sludge treatment speed is determined for each container, and this has been a serious limitation in the operation of the apparatus. Also, if the content of organic components in the sludge changes, the amount of gaseous products generated also changes, so operation in the same reaction state
It was practically impossible.

[0008] The present invention has been made to solve the above problems, and even if the amount of gaseous products produced by heat treatment of sludge changes, the quality of the obtained oily substance can be reduced. Another object of the present invention is to provide a sludge conversion device and a sludge conversion method that do not cause a decrease in yield.

[0009]

SUMMARY OF THE INVENTION A sludge conversion apparatus according to the present invention is a sludge conversion apparatus for heat-treating dried sludge at a temperature of 250 to 500 ° C. to produce an oily substance. It is controlled to a value proportional to the sludge treatment speed.

[0010] Further, the sludge conversion apparatus according to the present invention includes:
A sludge feeder, a vaporization unit that heats the dried sludge to vaporize the organic components and moisture in the sludge, a gas separation unit that separates the vaporized gaseous products, and a residue of the separated gas and sludge In a sludge conversion device including a reaction part for causing a contact reaction with a certain char and a condenser for condensing another gaseous product generated in the reaction part, a pressure detector for detecting a pressure in the reaction part is provided separately. A blower that discharges a non-condensable gas that is a component of the gaseous product or the other gaseous product, and a blower controller that controls the number of rotations of the blower to control the pressure of the reaction unit to a predetermined value. The pressure in the reaction section is controlled to a value proportional to the dry sludge treatment speed.

Further, the sludge conversion apparatus according to the present invention comprises a sludge feeder, a vaporization section for heating the dried sludge to vaporize organic components and moisture in the sludge, and a gas separation section for separating vaporized gaseous products. And, in a sludge conversion device comprising a reaction unit for contacting and reacting the separated gas and char which is a residue of sludge, and a condenser for condensing another gaseous product generated in the reaction unit, A blower that discharges another gaseous product or a non-condensable gas that is a component of another gaseous product, and a blower controller that controls the number of revolutions of the blower to control the pressure of the reaction section to a predetermined value. In addition, the rotation speed of the blower is set to a value proportional to the drying sludge treatment speed.

Further, in the sludge conversion apparatus according to the present invention, in addition to the above-described configuration, the gas separation unit includes a condensing separator,
A pump, a pump regulator, and a reheater, which separates the liquid oily substance from the gaseous product in the condensation separator, discharges the liquid oily substance by a pump regulated by the pump regulator, and removes the liquid oily substance by the reheater. Is vaporized and supplied to the reaction section, and the pressure in the reaction section is set by adjusting the blower to a value proportional to the discharge amount set by the pump controller.

[0013] Further, the sludge conversion apparatus according to the present invention comprises:
In addition to the above configuration, the gas separation unit includes a condensation separator, a pump, a pump controller, and a reheater,
The condensing separator separates the liquid oily substance from the gaseous product, discharges the liquid oily substance by a pump controlled by a pump controller, vaporizes the liquid oily substance by a reheater, and supplies it to the reaction section, The blower is adjusted to a value proportional to the discharge amount set by the pump controller to set the rotation speed of the blower.

Further, in the sludge conversion apparatus according to the present invention, in the above configuration, the blower is disposed in a system after the condenser, and discharges a non-condensed gas which is a component of another gaseous product. Things. Further, in the sludge conversion apparatus according to the present invention, in the above-described configuration, the blower is disposed in a system between the condenser and the reaction section, and discharges another gaseous product.

Further, in the sludge conversion method according to the present invention, the dried sludge is heat-treated at a temperature of 250 to 500 ° C. to produce an oily substance. In the sludge conversion method, the dried sludge is heated to remove the organic components and moisture in the sludge. Vaporizing step, separating gasified gaseous product, contacting the separated gas with char, which is a residue of sludge, in the reaction section in the reaction section, another gaseous product generated in the reaction section Condensing, detecting the pressure in the reaction section, adjusting the discharge amount of another gaseous product or non-condensable gas which is a component of the gaseous product, and making the pressure in the reaction section proportional to the dry sludge treatment rate This includes a step of controlling to the set value.

Further, the method for converting sludge according to the present invention comprises:
In a sludge conversion method for heat-treating dried sludge at a temperature of 250 to 500 ° C to produce an oily substance, a step of heating the dried sludge to vaporize organic components and moisture in the sludge, and separating the vaporized gaseous products. A step of contacting and reacting the separated gas with a char which is a residue of sludge in a reaction section, a step of condensing another gaseous product generated in the reaction section, another gaseous product or another And controlling the discharge rate of the non-condensable gas, which is a component of the gaseous product, and controlling the discharge rate of the non-condensable gas to a value proportional to the dry sludge treatment rate.

Further, in the sludge conversion method according to the present invention, in addition to the above-described steps, a step of separating and discharging a liquid oily substance from a gaseous product, and a step of vaporizing the liquid oily substance and supplying it to a reaction section. And setting the pressure in the reaction section to a value proportional to the discharge amount of the liquid oily substance.
Further, the sludge conversion method according to the present invention, in addition to the steps described above, includes a step of separating and discharging a liquid oily substance from a gaseous product, a step of vaporizing the liquid oily substance and supplying it to a reaction section, The method includes a step of setting the rotation speed of a blower for discharging non-condensable gas to a value proportional to the amount of discharged substances.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. FIG. 1 is a conceptual diagram of a sludge conversion apparatus according to Embodiment 1 of the present invention. In this figure, dried sludge 10 supplied from sludge supply device 1
1 uses sludge sufficiently dried to a solid content of 80% or more. This sludge is introduced into the vaporization section 2 of the sludge conversion apparatus heated to 250 to 500 ° C. by the vaporization section heater 7a under normal pressure and low oxygen atmosphere, and is fed by the sludge transport screw 9 linked to the sludge transport motor 8. The first gaseous product 105 (corresponding to the gaseous product) in which the organic components and moisture in the sludge are vaporized by being heated while being conveyed, and the first char as the sludge residue. 102 and discharged.

The first gaseous product 105 is supplied to the gas separation section 4a, where the second gaseous product 10 containing mainly oily substances is contained.
6a (corresponding to another gaseous product) and a fourth gaseous product 106b containing non-condensable gas and water vapor.

The second gaseous product 106a is supplied to the vaporizing section 2
In the same manner as described above, the reaction unit 7 is sent to the reaction unit 3 heated to 250 to 500 ° C. by the reaction unit heater 7b under normal pressure and low oxygen atmosphere.
The sludge is conveyed by the sludge conveyance screw 9 linked to the sludge conveyance motor 8 and is brought into contact with the second char 103 being fed while being stirred by the sludge conveyance pad 10. Here, a reaction such as deamination proceeds, whereby the molecules constituting the oily substance are reduced in molecular weight, and become an oily substance having a low boiling point and a low viscosity. In the reaction section 3, in addition to the third gaseous product 107 containing these low molecular weight oily substances, the third char 1
03a is discharged.

The third gaseous product 107 is supplied to the condenser 5a
The mixture is divided into a mixed liquid 111 of an aqueous solution containing an oily substance and an organic acid, and a first non-condensable gas 108a, which is a combustible gas mainly composed of carbon dioxide, and is discharged by a gas discharge blower 11a. .

In this system, in order to optimize the reaction state between the second gaseous product 106a and the second char 103 in the reaction section 3, the gas pressure inside the reaction section 3 is proportional to the sludge treatment speed. Is controlled so as to have a predetermined value.
That is, the pressure inside the reaction section 3 is detected by the pressure detector 13, and the rotation speed of the gas discharge blower 11a is controlled by adjusting the blower controller 12 so that the pressure becomes a predetermined value.

On the other hand, the fourth gaseous product 106b separated in the gas separation section 4a is sent to the condenser 5b, where it condenses the liquid 112 mainly composed of the reaction water, and the remaining second non-condensed gas 1
08b is discharged by the gas discharge blower 11b. Part of the non-condensable gas 108b discharged here is discharged to the outside of the system. Further, the circulation blower 6 sends a part of the non-condensable gas, the circulation gas 110, to the vaporization unit 2 in order to create a gas flow in the vaporization unit 2.

If the sludge conversion apparatus configured as described above is used, the amount of gaseous oil precursor generated when operating at a dry sludge treatment speed outside the capacity rating of the reaction section 3 will vary. Then, the residence time in the reaction section 3 changes, but by controlling the pressure inside the reaction section 3 to a pressure proportional to the dry sludge treatment speed, the second char 103 and the second gaseous product 106a are controlled. Reaction time can be optimized, and a decrease in the quality and yield of the generated oily substance can be suppressed.

Embodiment 2 Next, FIG. 2 shows a schematic diagram of a sludge conversion apparatus according to Embodiment 2 of the present invention. In the first embodiment, in order to set the pressure in the reaction unit 3 to a constant value corresponding to the dry sludge treatment speed, a reaction unit pressure detector 13 is provided, and the blower controller 12 is adjusted according to the detected value. Although the sludge conversion device has been described, the sludge conversion device according to the second embodiment does not include a configuration corresponding to the reaction unit pressure detector 13.

The sludge conversion apparatus according to Embodiment 2 is
Blower controller 1 for controlling blower 11a for gas discharge
In step 2, a signal value proportional to the dry sludge treatment speed is set, and the exhaust speed of the gas discharge blower 11a is controlled. By controlling the exhaust speed of the gas discharge blower 11a, the pressure in the reaction section 3 can be controlled, and the reaction time between the char and the gaseous product can be optimized.

Embodiment 3 Next, a sludge conversion apparatus according to Embodiment 3 of the present invention is shown in FIG. In the first embodiment, the gas discharge blower 11a is arranged to control the first non-condensable gas 108a taken out of the condenser 5a. However, in the third embodiment, the gas discharge blower 11a Is disposed between the reaction section 3 and the condenser 5a, and is configured to control the third gaseous product 107 extracted from the reaction section 3. Further, similarly to the case of the first embodiment, the pressure of the reaction section 3 is detected by the reaction section pressure detector 13, and the blower adjuster 12 can adjust the gas discharge blower 11a according to the detected pressure.

As shown in FIG. 3, the gas discharge blower 1
By arranging 1a between the reaction section 3 and the condenser 5a, the third gaseous product 107 before being condensed becomes a control target, so that the gas is discharged to the system after the condenser 5a. The control can be performed with more responsiveness to the pressure fluctuation of the reaction unit 3 than when the blower 11a is provided.

Embodiment 4 Next, FIG. 4 shows a schematic diagram of a sludge conversion apparatus according to Embodiment 4 of the present invention. As shown in FIG. 4, the gas discharge blower 11a is disposed between the reaction unit 3 and the condenser 5a as in the case of the third embodiment. A signal value proportional to the dry sludge treatment speed is set by a blower controller 12 for controlling the discharge blower 11a.

Therefore, it is possible to control the pressure fluctuation of the reaction section 3 with high responsiveness as compared with the case where the gas discharge blower 11a is provided in the system after the condenser 5a. The gas which is estimated to be proportional to the gas supplied and generated by the gas discharge blower 11a can be exhausted by the gas discharge blower 11a, so that an effect equivalent to that of the first embodiment can be obtained.

Embodiment 5 Next, a schematic diagram of a sludge conversion apparatus according to Embodiment 5 of the present invention is shown in FIG. As shown in FIG. 5, the first gaseous product 10 generated in the vaporization section 2
5 is sent to a gas separation section 4a, where it is separated by a condensation separator 14 into a fourth gaseous product 106b and a liquid oily substance 106c. The liquid oily substance 106c is sent to the reheater 17 by the pump 15 at the speed set by the pump controller 16, reheated by the reheater 17, vaporized to become the second gaseous product 106a, and
Sent to

In this sludge conversion apparatus, the pump controller 16
The blower controller 12 controls the number of rotations of the blower so that the pressure of the reaction unit 3 becomes equal to the value proportional to the discharge amount of the pump set in the step (1).

In the fifth embodiment, the discharge amount of the liquid oily substance 106c which is the base of the second gaseous product 106a is set, and the pressure in the reaction section 3 is controlled based on this value. Therefore, as compared with the case where a value proportional to the dry sludge treatment speed is used, the variation in the amount of the second gaseous product 106a can be suppressed in advance. Therefore, it is possible to further reduce the influence on the quality and yield of the generated oily substance due to the variation in the amount of the second gaseous product 106a generated.

Embodiment 6 Next, FIG. 6 shows a schematic diagram of a sludge conversion apparatus according to Embodiment 6 of the present invention. In the above-described fifth embodiment, the pump controller 16 of the gas separation unit 4a is used.
The exhaust speed of the gas discharge blower 11a was adjusted by the blower adjuster 12 in accordance with the information from the reaction section pressure detector 13. In the sixth embodiment, as shown in FIG. 6, the gas 107 generated in the reaction unit 3 is reduced by the blower controller 12 to a value proportional to the discharge amount of the pump 15 set by the pump controller 16. It is characterized in that the number of revolutions of the blower 11a is adjusted to exhaust air.

Therefore, compared to the case where a value proportional to the dry sludge treatment speed is used, the variation in the amount of the second gaseous product 106a supplied to the reaction unit 3 is reduced, and the pressure of the reaction unit 3 is reduced. Of the oily substance to be produced can be improved in quality and yield.

Embodiment 7 Next, FIG. 7 shows a schematic diagram of a sludge conversion apparatus according to Embodiment 7 of the present invention. In the fifth embodiment, the gas separation unit 4a and the reaction unit pressure detector 13 are provided, and the condenser 5a is disposed in the system between the reaction unit 3 and the gas discharge blower 11a. Embodiment 7 is characterized in that the condenser 5a is arranged in a system after the gas discharge blower 11a as shown in FIG.

As described above, by disposing the gas discharge blower 11a in the system immediately after the reaction unit 3 without passing through the condenser 5a, it is possible to improve the response of the pressure in the reaction unit 3. . Therefore, in addition to the features of the fifth embodiment, it is possible to improve the controllability of the pressure in the reaction section 3, and it is possible to improve the quality and yield of the generated oily substance.

Embodiment 8 Next, FIG. 8 shows a schematic diagram of a sludge conversion apparatus according to Embodiment 8 of the present invention. In Embodiment 6 described above, the rotation speed of the gas discharge blower 11a is adjusted by the blower adjuster 12 with the gas 107 generated in the reaction unit 3 to a value proportional to the discharge amount of the pump 15 set by the pump adjuster 16. An example of exhausting air was shown. In the eighth embodiment, as shown in FIG. 8, after controlling the gas discharge blower 11a in the same manner as in the sixth embodiment, the condenser 5a is disposed in a system after the gas discharge blower 11a. This makes it possible to improve the response of the pressure in the reaction section 3.

[0039]

The present invention can be used in a sewage treatment plant or an industrial field in which organic sludge is generated. According to the sludge conversion apparatus or sludge conversion method of the present invention, dry sludge that is out of rating is used. Even when operating at the treatment speed, the reaction time between sludge residue and another gaseous product can be optimized by controlling the pressure in the reaction section to a value proportional to the dry sludge treatment speed, and the It is possible to suppress a decrease in the quality and yield of the oily substance.

Further, according to the sludge conversion apparatus or the sludge conversion method of the present invention, the blower controller for controlling the blower directly sets a signal value proportional to the dry sludge processing speed and controls the exhaust speed of the blower. By controlling the exhaust speed of the blower, the pressure in the reaction section can be controlled, and the reaction time between the sludge residue and another gaseous product can be optimized.

According to the sludge conversion apparatus or the sludge conversion method of the present invention, the gaseous product before being condensed is controlled by disposing the blower between the reaction section and the condenser. Therefore, control can be performed with higher responsiveness to pressure fluctuations in the reaction section than when a blower is provided in a system after the condenser.

Further, according to the sludge conversion apparatus or the sludge conversion method of the present invention, the discharge amount of the liquid oily substance serving as the base of another gaseous product is set in the gas separation section, and the reaction is performed based on this value. Since the pressure in the section is controlled, it is possible to suppress the variation in the amount of other gaseous products generated in advance, compared with the case where a value proportional to the drying sludge treatment speed is used. The effect on the quality and yield of the product can be suppressed to a small extent.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a sludge conversion device according to Embodiment 1 of the present invention.

FIG. 2 is a conceptual diagram showing a sludge conversion device according to Embodiment 2 of the present invention.

FIG. 3 is a conceptual diagram showing a sludge conversion device according to Embodiment 3 of the present invention.

FIG. 4 is a conceptual diagram showing a sludge conversion device according to Embodiment 4 of the present invention.

FIG. 5 is a conceptual diagram showing a sludge conversion device according to Embodiment 5 of the present invention.

FIG. 6 is a conceptual diagram showing a sludge conversion device according to Embodiment 6 of the present invention.

FIG. 7 is a conceptual diagram showing a sludge conversion apparatus according to Embodiment 7 of the present invention.

FIG. 8 is a conceptual diagram showing a sludge conversion device according to Embodiment 8 of the present invention.

FIG. 9 is a conceptual diagram showing a conventional sludge conversion device.

[Explanation of symbols]

1. Sludge feeder 2. Vaporization section 3. Reaction section 4a. Gas separation section 5a, 5b. Condenser 6. Circulating blower 7a. Vaporization section heater 7b. Reaction section heater 8. Sludge transport motor 9. Sludge Conveyance screw 10. Sludge conveyance pad 11a, 11b. Blower for gas discharge 12. Blower controller 13. Reaction section pressure detector 1
4. Condenser 15. Pump 16. Pump regulator 17. Reheater
101. Dry sludge 102. First char 103. Second char 103
Third char 105. First gaseous product 106a. Second gaseous product 106b. Fourth gaseous product 106c. Liquid oil 107. Third gaseous product 108a. First non-condensable gas 108b. Second non-condensable gas 109. Non-condensable gas 1
10. Circulating gas 111. Mixed liquid 112. Liquid mainly composed of reaction water

Continued on the front page (72) Inventor Keiji Hirata 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation (72) Inventor Nobuhiro Kanei 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Co., Ltd. In-house (72) Inventor Takashi Koda 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term (reference) 4D059 AA03 BB05 BB11 CB01 CB06 CB07 DA59 EA08 EB06 EB08

Claims (11)

[Claims] In a sludge conversion apparatus for producing an oily substance by subjecting dried sludge to a heat treatment at a temperature of 250 to 500 ° C., the pressure in a reaction section for performing the heat treatment is controlled to a value proportional to a dry sludge treatment rate. And sludge conversion equipment. 2. A sludge feeder, a vaporizing section for heating dried sludge to vaporize organic components and moisture in the sludge, a gas separating section for separating vaporized gaseous products, a separated gas and sludge. Detecting the pressure in the reaction section in a sludge conversion device comprising a reaction section for contacting and reacting the char, which is the residue of the above, with a condenser for condensing another gaseous product generated in the reaction section. A pressure detector, a blower for discharging the non-condensable gas which is a component of the another gaseous product or the another gaseous product, and a blower for controlling the pressure of the reaction section to a predetermined value. A sludge conversion device comprising a blower controller for adjusting the number of revolutions, and controlling the pressure in the reaction section to a value proportional to the dry sludge treatment speed. 3. A sludge feeder, a vaporization section for heating dried sludge to vaporize organic components and moisture in the sludge, a gas separation section for separating vaporized gaseous products, a separated gas and sludge. A sludge conversion apparatus comprising: a reaction section for contacting and reacting a char, which is a residue of the above, and a condenser for condensing another gaseous product generated in the reaction section, wherein the other gaseous product Or a blower for discharging a non-condensable gas which is a component of the another gaseous product, and a blower controller for adjusting the rotation speed of the blower for controlling the pressure of the reaction section to a predetermined value, wherein the blower Wherein the number of revolutions is set to a value proportional to the drying sludge treatment speed. 4. A gas separation unit comprising a condensing separator, a pump, a pump regulator, and a reheater, wherein the condensing separator separates a liquid oily substance from a gaseous product in the condensing separator.
The liquid oil is discharged by a pump controlled by the pump controller, and the liquid oil is vaporized by the reheater and supplied to the reaction unit, and is proportional to the discharge amount set by the pump controller. The sludge conversion device according to claim 2, wherein the pressure in the reaction section is set by adjusting a blower controller to a value. 5. A gas separation unit comprising a condensing separator, a pump, a pump controller, and a reheater, wherein the condensing separator separates a liquid oily substance from a gaseous product,
The liquid oil is discharged by a pump controlled by the pump controller, and the liquid oil is vaporized by the reheater and supplied to the reaction unit, and is proportional to the discharge amount set by the pump controller. 4. The sludge conversion device according to claim 3, wherein the blower adjuster is adjusted to the value to set the rotation speed of the blower. 6. The sludge according to claim 2, wherein the blower is disposed in a system after the condenser and discharges a non-condensable gas which is a component of another gaseous product. Conversion device. 7. The sludge conversion apparatus according to claim 2, wherein the blower is disposed in a system between the condenser and the reaction section, and discharges another gaseous product. 8. A sludge conversion method for heat-treating dried sludge at a temperature of 250 to 500 ° C. to produce an oily substance, wherein the step of heating the dried sludge to vaporize organic components and moisture in the sludge, A step of separating a product, a step of bringing a separated gas into contact with a char that is a residue of sludge in a reaction section, a step of condensing another gaseous product generated in the reaction section, Detecting the pressure in the unit, adjusting the discharge amount of the another gaseous product or the non-condensable gas that is a component of the gaseous product, and adjusting the pressure of the reaction unit to a value proportional to the dry sludge treatment rate. A method for converting sludge, comprising a step of controlling. 9. A sludge conversion method for heat-treating dried sludge at a temperature of 250 to 500 ° C. to produce an oily substance, wherein the step of heating the dried sludge to vaporize organic components and moisture in the sludge, A step of separating a product, a step of causing a separated gas and a char that is a residue of sludge to contact and react in a reaction section, a step of condensing another gaseous product generated in the reaction section, Adjusting the discharge rate of the non-condensable gas, which is a component of the gaseous product or another gaseous product, and controlling the discharge rate of the non-condensable gas to a value proportional to the dry sludge treatment rate. Sludge conversion method characterized by the above-mentioned. 10. A step of separating and discharging a liquid oily substance from a gaseous product, a step of vaporizing the liquid oily substance and supplying it to a reaction section, and a step of setting a value proportional to a discharge amount of the liquid oily substance in the reaction section. The sludge conversion apparatus according to claim 8, comprising a step of setting a pressure of the sludge. 11. A step of separating and discharging a liquid oily substance from a gaseous product, a step of vaporizing the liquid oily substance and supplying it to a reaction section, and a step of non-condensing to a value proportional to the discharge amount of the liquid oily substance. The sludge conversion apparatus according to claim 9, further comprising a step of setting a rotation speed of a blower for discharging gas.