KR101780266B1 - Jar-drum type apparatus for decreasing sludge within blade and method for decreasing dewatered sludge in sewage using jar-drum type sludge decreasing apparatus - Google Patents

Abstract

The present invention relates to a pot type drum including an internal blade and a method to reduce sewage sludge by using the pot type drum. More specifically, sludge and hot fermentation microorganisms are inserted into a drum body, which has an internal space and an inclined upper part and then the drum body is rotated while at the same time hot air is supplied into the drum body, thus, the present invention is capable of reducing sludge through the hot fermentation microorganisms. According to the present invention, hot fermentation microorganisms (TY-EM), which promote fermentative drying reduction, and ceramic balls, which function as an expanding agent, are inserted to promote the reduction of sewage sludge through smooth oxygen supply. Moreover, high temperature heat and moisture in the drum body are collected into the upper part of the drum body through convection currents and injected air pressure of a ventilator, and then, the heat and the moisture are returned to a hot air blower and reused, thus, the present invention is capable of saving energy.

Description

[0001] The present invention relates to a jar-drum type sludge reducing apparatus and a jar drum type sludge reducing apparatus, and more particularly to a jar-drum type sludge reducing apparatus and method for decreasing dewatered sludge in sewage using jar-drum type sludge decreasing apparatus}

The present invention is characterized in that sludge and high-temperature fermenting microorganisms are introduced into an interior of a drum body having an internal space formed therein at an upper end thereof, and then hot air is supplied to the inside of the drum body while rotating the drum body, The present invention relates to a sludge weight reducing device of a jar type drum having a blade for reducing sludge therein and a method of reducing the weight of a wastewater dehydrating sludge using a jar drum type sludge weight reducing device.

Since the establishment of comprehensive countermeasures for the management of land dumping and marine dumping (June 3, 2003), the industrial wastewater sludge sludge as a measure for soft landing landfill such as SMEs has been limited to the limited application of wastewater and wastewater sludge in 15 years. The ban on marine emissions was prohibited.

Various measures such as sludge resource reclamation facility, waste incineration facility, solubilization facility for reducing sludge, digestion tank reconstruction and expansion are being implemented as land treatment measures.

This is a method of treating sewage and sewage sludge generated in most public sewage treatment facilities and wastewater treatment plants under the leadership of government agencies.

In the case of private enterprises, the sewage and wastewater sludge generated in the workplace is stored mechanically and dehydrated, buried in the landfill, or disposed of by incineration, in accordance with the prohibition of total marine discharge of wastewater and wastewater sludge.

The sewage sludge generated in the workplace is mechanically dehydrated, and the dehydrated sludge has a water content of about 80 to 85%. When the sludge is treated by landfill or incineration, the waste disposal unit costs a lot of money at high costs There are a lot of difficulties in operating a business.

If the water content of the dehydrated sludge is reduced to 30% or less, the volume of the dehydrated sludge is reduced to 71 to 64% and the waste treatment cost is reduced by 71 to 64%. Therefore, Facilities, wastewater treatment plants and waste sites can significantly reduce waste disposal costs and also increase the volume of waste disposal sites by as much as the volume.

In order to reduce the water content of the dehydrated sludge, waste fermentation apparatus and similar apparatuses have been developed and used. However, since the cylindrical dehydration sludge is mixed by stirring the main shaft with the impeller inside the cylinder type, There are many cases where the sludge is concentrated at the lower part, and it is frequently broken or damaged by the rotating load. There are many cases where the dehydration sludge fermenting device can not properly exhibit the required efficiency due to the anaerobicization of the sludge concentrated at the bottom.

Therefore, it can efficiently mix and stir the weight of dehydrated sludge and process it within 24 hours, reduce the energy required to maintain the internal constant temperature, and reduce the sludge processing cost by reducing the volume of sludge due to decrease of water content It became necessary to develop a fermentation drying and weight loss device that can be used.

As a conventional technique for reducing the amount of dewatered sludge generated in a sewage / wastewater treatment plant, Japanese Patent Publication No. 0883979 discloses a sewage / wastewater sludge pretreatment apparatus for pre- A sludge inlet pipe for injecting sludge, an alkaline inflow pipe for introducing an alkaline agent, and a stirrer for mixing the concentrated sludge and the alkaline agent; A sludge circulation pipe connected to a lower part of the hydrolysis tank and connected to an upper part of the hydrolysis tank, the sludge circulation pipe having one end connected to the lower part of the hydrolysis tank to circulate the sedimented sludge precipitated to the lower part of the hydrolysis tank; A sludge circulation pump installed on the sludge circulation pipe for forcibly withdrawing and circulating the precipitate sludge from the hydrolysis tank; A sludge crusher installed on the sludge circulation pipe for finely crushing sediment sludge transferred by the sludge circulation pump; An ultrasonic processor installed on the sludge circulation pipe and directly irradiating ultrasound to the ground sludge finely ground by the sludge grinder; And a solubilization liquid discharge pipe installed at the upper part of the hydrolysis tank and discharging the hydrolyzed solubilized liquid to the outside. The apparatus for reducing the waste water and wastewater sludge using the alkali pulverization and the ultrasonic process is disclosed.

In another prior art, JP-A-1048352 discloses a bioreactor in which wastewater flowing from the outside is stored, intermittently aeration is performed to cultivate and discharge microorganisms in a state in which precipitation can be separated; A sedimentation tank for accumulating wastewater containing activated sludge discharged from the bioreactor and depositing suspended solids by gravity sedimentation, utilizing all the suspended suspended solids as transport sludge and discharging the supernatant; An anaerobic tank for receiving transport sludge from the sedimentation tank and inducing endogenous respiration of microorganisms; A conveyance line for conveying sludge containing microorganisms in a starvation state to the bioreactor in the anaerobic tank; And a timer installed on the bottom of the bioreactor for supplying external air for the aeration and for adjusting the intermittent aeration period of the air diffuser provided outside the bioreactor so that the bioreactor is intermittently released A sludge treatment device capable of reducing the amount of excess sludge in the process including an intermittent aeration device for enabling environmental changes to an exhalation state and an oxygen-free state through periodic operation, and a wastewater treatment device for removing wastewater containing organic substances and nutrients from the outside, And intermittently releasing it to make it possible to perform solid-liquid separation; A second step of introducing wastewater into the sedimentation tank from the bioreactor, depositing suspended solids from wastewater containing activated sludge through gravity sedimentation, and discharging the supernatant by overflowing; A third step of flowing the entire amount of suspended sludge immersed in the sedimentation tank into the anaerobic tank through the sludge return pump and maintaining endogenous respiration through limiting the bacteria; And sludge containing a microorganism in a starvation state in the anaerobic tank is introduced into a bioreactor having a relatively high substrate / microorganism (So / Xo) ratio relative to the microorganism in the anaerobic tank through a return line, Concentration of the sludge is ensured and most of the microorganisms secured for sewage treatment are used for metabolism to reduce the excess sludge and intermittent abandonment operation of the bioreactor is performed to convert the bioreactor into anaerobic conditions, And a fourth step of reducing the nitrate nitrogen to nitrogen gas.

However, the method of reducing the amount of dewatered sludge generated in the conventional wastewater treatment plant is limited to a certain type of dewatering sludge, and it is difficult to cope with various forms of the dewatered sludge.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a fermentation microorganism (TY-EM) and a ceramic ball The high temperature heat and moisture inside the drum type drum body can be recovered by the hot air and collected again by the air pressure and the convection phenomenon of the blower installed in the hot air blower to the upper part of the drum type drum body, The present invention provides a method of reducing the amount of waste water and dehydrated sludge using a jar drum type sludge weight reducing device having a blade capable of saving and a jar drum type sludge reducing device.

The present invention provides a method of reducing the amount of waste water sludge by using a jar drum type sludge reducing apparatus and a jar type drum type sludge reducing apparatus in which a blade of the present invention is installed, An inlet for injecting sludge and high-temperature fermenting microorganisms into the upper end of the inclined drum body, and a lower drum disposed at an upper end side lower side of the inclined drum body, A discharge chute for discharging the sludge reduced in the main body to the outside, and a drive motor installed to rotate the drum main body outside the drum main body, wherein the blade is provided with a drum main body So that the sludge reduced in weight can be discharged to the outside along the blade A plurality of buckets mounted in a direction perpendicular to the one surface is characterized by being arranged to each other a predetermined interval apart.

As described above, the method of reducing the amount of sludge of a wastewater dehydrating sludge using the jar drum type sludge reducing apparatus and the jar drum type sludge reducing apparatus in which the blades of the present invention are installed is characterized in that the high temperature fermenting microorganism TY -EM) and a ceramic ball serving as a swelling fire can be supplied to facilitate the reduction of dehydrated sludge by smooth supply of temperature and oxygen, and the high temperature heat and moisture inside the drum type drum body can be supplied to the blowing air pressure And the high-temperature heat and moisture gathered on the upper part of the drum-type drum body by the convection phenomenon can be recovered by a hot air blower and reused, thereby saving energy.

1 is a plan view of a jar drum type sludge reducing apparatus in which a blade of the present invention is mounted.
2 is a front view of a jar drum type sludge reducing apparatus in which a blade of the present invention is mounted.
3 is a side view of a jar drum type sludge reducing device in which a blade of the present invention is mounted.
4 is a detailed view of the buckets and blades of the present invention for making and attaching.
5 is a detailed view of the high-temperature heat injecting tube of the present invention.
6 is a side detail view of the mixing device of the present invention.
7 is a front detail view of the mixing device of the present invention.

A drum 2 which is spirally mounted on an inner surface of the drum body 1 and a drum body 1 which is inclined, And a discharging chute 6 for discharging the sludge reduced in the drum body 1 to the lower side of the inclined upper end of the drum body 1, And a driving motor 7 installed to rotate the drum main body 1 outside the drum main body 1. The blade 2 is provided with a drum main body 1, A plurality of buckets 2-1 mounted in a direction orthogonal to one side of the blade 2 are arranged at predetermined intervals so that the sludge reduced in the inside of the drum body 1 can be discharged to the outside along the blade 2, And are spaced apart from each other.

A hot air blower 10 for supplying hot air to the inside of the drum main body 1 is installed outside the drum body 1. Hot air generated by the hot air blower 10 is supplied to the hot air blower 10 through an inlet 6 And a collecting device 18 for collecting the high temperature heat formed inside the drum body 1 is provided at one side of the charging port 17, And a high-temperature heat recovery pipe 19 for recovering the collected high-temperature heat by the hot air fan 10 is attached to the collecting device 18.

After the sludge and the high temperature fermenting microorganisms are introduced into the interior of the drum body 1 in which the internal space is formed and the upper end is inclined, the drum body 1 is rotated, and at the same time, And the sludge is reduced by high-temperature fermentation microorganisms.

The blade 2 is mounted on the inner side surface of the drum body 1 so that the upper end of the blade 2 is inclined along the longitudinal direction of the drum body 1, A plurality of buckets 2-1 are mounted at predetermined intervals in the direction of the drum 2 so that the sludge reduced in the drum body 1 by the rotation of the drum body 1 moves along the blade 2, Is discharged to the outside through a discharge chute (13) formed on the lower side of the upper end side of the main body (1).

A method of reducing the amount of waste water and dehydrated sludge using a jar drum type sludge reducing apparatus and a jar drum type sludge reducing apparatus in which the blade of the present invention is installed will be described in detail with reference to the accompanying drawings.

FIG. 1 is a plan view of a jar drum type sludge reducing apparatus in which a blade of the present invention is mounted, FIG. 2 is a front view of a jar type drum type sludge reducing apparatus, Figure 1 is a side view of a jar drum type sludge reducing device mounted therein.

As shown in FIGS. 1 to 3, the drum-type sludge weight reducing apparatus in which the blade of the present invention is installed includes a drum body 1 in which an inner space is formed and an upper end thereof is formed to be inclined, A blade 2 mounted on the inner surface of the main body 1 in a spiral manner along the longitudinal direction of the drum main body 1 and a discharge port 2 for supplying sludge and high temperature fermenting microorganisms to the upper end of the inclined drum main body 1, A discharge chute 13 for discharging the sludge reduced in the drum body 1 to the lower side of the upper end side of the inclined drum body 1, And a drive motor 7 installed to rotate the drum main body 1. [

The upper end of the drum body 1 is inclined rearward by 15 to 20 degrees.

The blades 2 are provided with a plurality of blades 2 so that the sludge reduced in the drum body 1 by the rotation of the drum body 1 can be discharged to the outside along the blades 2 in a direction perpendicular to one surface of the blades 2 A plurality of buckets 2-1 are arranged at predetermined intervals.

In addition, a hot air fan 10 for supplying hot air to the inside of the drum main body 1 is provided outside the drum main body 1.

More specifically, the hot air heater 10 is equipped with a high-temperature heat injection pipe 17 for transferring the hot air generated by the hot air fan 10 to the inside of the drum body 1 through the inlet 6, 6 is provided with a collecting device 18 for collecting high temperature heat formed inside the drum main body 1 and a high temperature heat recovery pipe 18 for collecting the high temperature heat collected in the collecting device 18 by the hot air 10, (19) is mounted.

The high temperature and heat injection pipe 17 is connected to the spray tube 16 so that hot air can be diffused and sprayed into the drum body 1 evenly.

Thus, after the sludge and the high-temperature fermentation microorganism are introduced into the drum body 1, the drum body 1 is rotated, and hot air is supplied into the drum body 1 to reduce the sludge by the high-temperature fermentation microorganism will be.

As the corrugated pipe is folded or unfolded, the discharge pipe 16 is connected to the drum main body 16 as required, (1).

A cylinder (not shown) driven by pneumatic or hydraulic pressure is used as the driving means for folding or unfolding the corrugated tube so that the tube body of the cylinder is fixedly mounted on the high-temperature heating injection pipe 17, The tip end of the cylinder rod that reciprocates linearly is fixedly attached to one side of the spray tube 16 so that the spray tube 16 can move deeply into the inside of the drum body 1. [

A mixing device 3 for mixing the sludge supplied through the inlet 6 with the high-temperature fermentation microorganisms is provided at an upper portion of the inlet 6 formed at the upper end of the drum body 1.

The mixing device 3 will be described in detail below.

A plurality of ceramic balls 12 or synthetic resin balls are stored in the drum main body 1 to be mixed with sludge and high temperature fermenting microorganisms introduced into the drum main body 1, It acts as a swelling fire during rotation.

The size of the ceramic ball 12 is preferably 30 mm to 50 mm.

In the present invention, the ceramic balls 12 are exemplified.

Fanning is a substance or object that acts on an object or substance to expand the surface area of the substance.

That is, it serves to hit the sludge by the rotation of the drum main body 1.

A perforated screen screen 14 having a plurality of through holes formed therein for preventing the ceramic balls 12 from being discharged together when the sludge reduced in the drum body 1 is discharged to the outside through the discharge chute 13 is mounted have.

The discharge chute 13 means an outlet.

When the drum body 1 is rotated in the forward direction, the sludge and the high-temperature fermentation microorganisms are introduced into the drum body 1 by the bucket 2-1 mounted on the blade 2, When the drum body 1 is reversely rotated, the sludge reduced by the high-temperature fermentation microorganism is discharged to the outside through the discharge chute 13.

That is, the blade 2 serves as a conveying screw, and the bucket 2-1 facilitates the conveyance of the sludge.

The high-temperature heat and moisture generated in the drum body 1 are introduced into the high-temperature heating injection pipe 17 by the hot air fan 10 and are automatically installed on the drum body 1 by the inflation air pressure and the convection phenomenon The high temperature heat and the water collected in the upper part of the collecting device 18 can be partially recovered by the hot air 10 through the high temperature heat recovery pipe 19 and reused to save energy.

At this time, in order to remove the high temperature heat, moisture and odor which are not reused partially, a wet scrubbing scraper for odor reduction is installed on the outside to remove odors, and the cleaning liquid is introduced into a wastewater treatment plant for reprocessing or consignment treatment, Heat, moisture and odor were removed.

The above-described operation is constituted by the control unit 11 for the common use.

A hydraulic motor 7 and a speed reducer 9 are provided to transmit the rotational force to the lower portion of the drum main body 1. The drum main body 1 and the speed reducer 9 are spaced at intervals of 700 mm. The support base is attached so that the high heat generated in the drum body 1 is transmitted to the reducer 9 to prevent the reduction gear from being damaged by the boiling phenomenon of the lubricating oil due to the temperature rise.

In addition, the ball gear is mounted to prevent the drum body 1 from rotating due to the rotation thereof to improve the durability of the drum body 1, and the drum body 1 can be rotated at a low speed or at a high speed Rotation, forward rotation and reverse rotation are made possible.

The high temperature fermentation microorganism (TY-EM) was prepared by mixing the microorganisms such as photosynthetic bacteria, yeasts, molds, and lactic acid bacteria with the organic carbon source so that the C / N ratio was controlled to 30-40, .

A circular ceramic ball 12 having a diameter of 40 to 50 mm and made of a synthetic resin material is charged into the drum body 1 to expand the contact area between oxygen and high temperature heat, And promotes the growth and resolution of microorganisms (TY-EM).

The fermentation and the high temperature exothermic reaction are most likely to occur under an exhalation condition in the range of 50 to 60 DEG C. Therefore, when the internal temperature of the drum body 1 reaches 60 DEG C in the control unit 11, the operation of the hot wind 10 And only the air is supplied. When the internal temperature is lower than 50 캜, the hot air 10 controls the high temperature heat and the air to be supplied at the same time.

A load cell 21 for sensing the load of the drum main body 1 is mounted between the drum main body 1 and the base 22 supporting the drum main body 1 on the ground.

That is, the load cell 21 and the control unit 11 automatically analyze the weight and moisture content of the dewatered sludge, the weight and the moisture content of the fermented and dried sludge, thereby enabling the fermentation dried amount and the water content to be confirmed in real time on a digital basis. When the drying complete water content is 25 to 30%, the operation of the drum main body 1 is automatically stopped. When the drum main body 1 is automatically rotated in the reverse direction, the blades 2 discharge the discharged water to the discharge chute 13, The sludge was then automatically discharged with a portion of the reduced sludge so that the mixing water content would be between 65 and 70% to mix with the dehydrated sludge to be reduced.

Figure 4 is a detail view of the bucket and blade of the present invention for making and attaching.

4, the bucket blade 2 is manufactured by attaching a hockey-like bucket 2-1 to the lower side of the blade 2. The attachment angle is in the range of 45 to 90 degrees, And the angle of attachment should be different according to the shape.

The bucket 2-1 is a rectangular plate having a size of 200 to 250 mm in length x 300 to 400 mm in length x 6 to 10 mm in thickness and its end portion is curved at 15 to 20 占 The interval to be attached to the blade 2 is 200 To 400 mm.

In addition, the blade 2 has a spiral shape with a width of 400 mm and a thickness of 6 to 10 mm, and is installed in the drum body 1 in two or more systems.

5 is a detailed view of the high-temperature heat injecting tube of the present invention.

As shown in Fig. 5, the spray tube 16 is a cylindrical tube having a space formed therein and having a bore diameter of 3 mm arranged in a helical shape with a spacing of 10 cm, and a tip portion having four holes drilled in the cross direction High-temperature heat and air are injected in the downward direction and circular direction, and it is distributed to the mixed sludge evenly, so that the high-temperature fermentation microorganism (TY-EM) rapidly propagates and further decomposition of organic matter is promoted. The sludge was designed to be reduced to the target value.

Fig. 6 is a side detail view of the mixing device of the present invention, and Fig. 7 is a front detail view of the mixing device of the present invention.

6 and 7, the mixing device 3 has a hopper 4 penetrating vertically and a pair of pulverizing screws 5 mounted in a direction orthogonal to the hopper 4 will be.

When the sludge and the high-temperature fermentation microorganism are introduced through the upper part of the hopper 4, they are mixed while passing through the pair of pulverizing screws 5, and the inlet 6 located at the lower part of the hopper 4 is inserted into the drum body 1).

The shape of the pulverizing screw 5 and the means for driving the pulverizing screw 5 are well-known conventional means, and a detailed description thereof has been omitted.

That is, the mixing device 3 is installed on the upper part of the drum body 1, and distributes the dewatered sludge evenly and uniformly to the lower part while the pulverizing screw 5 rotates, so that the drum body 1 ) Into the inlet (6).

The connection between the dehydrating sludge mixing device 3 and the inlet 6 of the drum main body 1 is of a hermetically sealed structure so that the high temperature heat generated in the drum main body 1 is supplied to the hopper 4 ), So that the temperature necessary for fermentation and drying of the dewatered sludge can be increased in advance before fermentation and drying.

On the other hand, the outside of the drum body 1 is constituted of a heat insulating equipment 15 composed of a heat insulating material of 20 to 40 mm and a heat insulating cover of a stainless steel material in order to prevent a high heat loss required for fermentation drying inside the drum body 1 Loses.

The closed circuit hydraulic pump 8 of the drum main body 1 operates the hydraulic pressure by the power to transmit the force to the speed reducer 9 to enable forward rotation and the closed circuit hydraulic pump 8 controls the hydraulic pressure and the flow rate control Can be freely adjusted. Thus, when the fermentation loss is reduced, the total number of rounds is varied 3 to 5 times / minute, and the number of reverse rotations is 7 to 10 times / minute at the time of discharge.

A hydraulic motor 6 and a speed reducer 9 installed for transmitting the rotational force to the lower portion of the drum body 1 are installed and the drum body 1 and the speed reducer 9 are installed at intervals of 700 mm, The high temperature generated in the drum type drum body 1 is transferred to the speed reducer 9 to prevent damage to the speed reducer 9 due to the boiling phenomenon of the lubricating oil due to temperature rise, (1) It prevents the flow caused by the rotation of the main body, thereby improving the durability of the main body.

The decelerator 9 is attached to the lower portion of the drum body 1 at an angle of 15 to 20 degrees with a maximum rotation of 50,000 at a constant rotation ratio to apply a rotational force to the drum body 1. [

The sludge inside the drum body 1 is reduced in the optimum conditions of fermentation drying loss by a circular ceramic or synthetic resin ball 12 having a diameter of 40 to 50 mm made of a ceramic material or a synthetic resin material, .

The hot air blower 10 is a high pressure hot air blower type in which a spray tube 16 is inserted into the drum body 1 from the side of the discharge chute 13 of the drum body 1 to the 1/3 point, A temperature sensor 20 is mounted at the end of the capillary 16.

The apparatus for reducing sludge according to the present invention is characterized in that the sludge reducing apparatus for fermenting and drying the dehydrated sludge in a continuous operation within 24 hours and flowing through the spray pipe 16 for maintaining the internal temperature of the drum body 1 at 50 to 60 ° C necessary for fermentation The high temperature hot wind is automatically collected in the upper part of the drum body 1 by the injection air pressure and the convection phenomenon of the blower (not shown) installed in the hot air inside the drum body 1, Heat circulation system that is collected by a collecting device 18 installed on the upper side of the heat recovery pipe 6 and is partially recovered by the hot air heat recovery pipe 19 and reused.

The collecting device 18 is a well-known generic configuration, and a detailed description thereof will be omitted.

The discharged sludge is discharged by reverse rotation at 7 to 10 times / minute of the drum body 1, and a perforated screen net 14 having pores having a diameter of 30 mm is formed at intervals of 40 mm in the discharge chute 13, So that the ceramic balls 12 are not discharged and circulated in the drum body 1 so as to be continuously used for weight reduction of the dewatered sludge so that only the reduced sludge can be discharged.

At this time, the reduced discharge sludge is discharged so as to mix the reduced sludge with the next dehydrated sludge, leaving the reduced sludge so that the mixed water content of the reduced sludge and the dehydrated sludge becomes 65 to 70%.

In addition, the moisture and odor generated in the process of reducing the dehydrated sludge are collected by the wet scraper for removing the high concentration odor, and the fresh air is discharged to the outside.

As described above, according to the present invention, the composite action for reducing the fermentation liquor, that is, the aerobic fermentation of the high temperature fermentation microorganism (TY-EM), the holding temperature by the circulating hot air system, (TY-EM) and the inner blade (2) of the drum body (1) with the blade (2) mounted thereon, Of the sludge in the drum body 1 is pumped up to the upper part of the drum body 1 so that the inner anaerobicization is not progressed by the vertical, By optimally reducing monitoring, the volume of dehydrated sludge can be reduced by more than 70%.

As described above, the method of reducing the amount of sludge of a wastewater dehydrating sludge using the jar drum type sludge reducing apparatus and the jar drum type sludge reducing apparatus in which the blades of the present invention are installed is characterized in that the high temperature fermenting microorganism TY -EM) and a ceramic ball serving as a swelling fire can be supplied to facilitate the reduction of dehydrated sludge by smooth supply of temperature and oxygen, and the high temperature heat and moisture inside the drum type drum body can be supplied to the blowing air pressure And the high-temperature heat and moisture gathered on the upper part of the drum-type drum body by the convection phenomenon can be recovered by a hot air blower and reused, thereby saving energy.

1. Drum body 2. Blade
3. Mixer 4. Hopper
5. Grinding screw 6. Inlet
7. Hydraulic motor 8. Closed-loop hydraulic pump
9. Reducer 10. Heat wind
11. Control unit
12. Ceramic ball 13. Discharge chute
14. Screen network 15. Thermal insulation equipment
16. Injection piping 17. High heat injection piping
18. Collecting device 19. High temperature heat recovery piping
20. Temperature sensor 21. Load cell
22. Base

Claims (4)

A drum 2 which is spirally mounted on an inner surface of the drum body 1 and a drum body 1 which is inclined, And a discharging chute 6 for discharging the sludge reduced in the drum body 1 to the lower side of the inclined upper end of the drum body 1, (13), and a drive motor (7) installed to rotate the drum body (1) on the outside of the drum body (1)
The blade 2 is provided with a drum 2 having a drum 2 and a drum 2 in a direction perpendicular to one side of the blade 2 so that sludge reduced in the drum body 1 by the rotation of the drum body 1 can be discharged to the outside along the blade 2 A plurality of buckets 2-1 mounted thereon are arranged at a predetermined distance from each other,
A hot air blower 10 for supplying hot air to the inside of the drum main body 1 is installed outside the drum body 1. Hot air generated by the hot air blower 10 is supplied to the hot air blower 10 through an inlet 6 And a collecting device 18 for collecting the high temperature heat formed inside the drum body 1 is provided at one side of the charging port 17, And a high temperature heat recovery pipe (19) for recovering the collected high temperature heat by the hot air (10) is mounted in the collecting device (18).
delete The sludge and the high temperature fermenting microorganisms are introduced into the interior of the drum body 1 having an internal space formed at an upper end of the drum body 1 and then the drum body 1 is rotated, Wherein the sludge is reduced by the high-temperature fermentation microorganism, the method comprising the steps of:
The blade 2 is mounted on the inner side surface of the drum body 1 so that the upper end of the blade 2 is inclined along the longitudinal direction of the drum body 1, The sludge reduced in the interior of the drum body 1 by the rotation of the drum body 1 moves along the blade 2 and is discharged from the drum body 1 1 through the discharge chute 13 formed on the lower side of the upper end side of the discharge chute 1,
A hot air blower 10 for supplying hot air to the inside of the drum body 1 is installed outside the drum body 1. Hot air generated by the hot air blower 10 is supplied to the hot air blower 10 through the inlet 6 And a collecting device 18 for collecting the high temperature heat formed inside the drum body 1 is installed at one side of the charging port 17 And the collection device 18 is equipped with a high-temperature heat recovery pipe 19 for recovering the collected high-temperature heat by the hot air 10. The reduction of the waste water / dehydrated sludge using the jar drum type sludge reduction device Way
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