KR101142954B1 - Apparatus for sludge recycled soil - Google Patents

Abstract

PURPOSE: An apparatus for treating sludge recycled soil is provided to improve the efficiency of agitation by pulverizing and agitating solidified recycled soil materials using impellers. CONSTITUTION: An apparatus for treating sludge recycled soil includes a plurality of sludge supplying units(110), an additive supplying unit(120), a first agitating unit(130), a second agitating unit(100), a deodorizing agent supplying unit(140) based on ferrous sulfate, a stabilizer supplying unit, and a collecting system. The collecting system collects gas generated from sludge through the second agitating unit. The second agitating unit includes a structure, a housing, shafts, a power part, a first power transferring unit, a second power transferring unit, and impellers. When impellers are combined with the shafts, wing parts combined with combining elements in order to form symmetrically an inclined angle to the expanded direction of the shafts. Sludge and solidification auxiliary agent introduced in the housing are agitated and moved to a outlet forming direction.

Description

Apparatus for sludge recycled soil}

The present invention relates to a sewage sludge cover device, and more particularly, by preparing sludges such as sludge and sewage sludge using a solidification aid such as fly ash, a combustor and cement, and a deodorant and stabilizer. Recycle sewage sludge without environmental pollution to promote economic efficiency and convenience.The solidified cover material inputted through the hopper formed in the second stirring device is crushed by using the first and second impellers and stirred while stirring. By improving the efficiency, it is possible to manufacture high quality cover agent, and to form the first and second unevenness on the surface of the first and second wings formed on the first and second wings of the first and second impellers formed in the second interlocking device, By further improving the crushing effect of the falling cover material can not only produce a good quality cover material, but also the first and second of the first and second impeller formed in the second stirring device The first and second blades formed in the opening portion are formed in a fan shape so that the first and second wings are not continuous, and a space is formed in some sections. The present invention relates to a sewage sludge cover device capable of improving the stirring efficiency by preventing the sludge and the solidification aid from sticking.

Sludge is a mud-like substance that is sedimented and separated during the treatment of sewage and wastewater. It has high water content and high organic content, which makes it easy to rot and is difficult to treat. Currently, most of it is buried underground or dumped at sea. In part, treatment methods such as incineration, drying, composting, and solidification have been attempted.

Since sewage sludge has been banned from landfills since July 2003, about 5,120 tons / day of seawater dumping amounted to 77.1% of the 6,645 tons / day generated at the end of 2004. Analysis of treatment facility operation and management status, June 2005, and wastewater sludge has been augmented by marine dumping (2002, 2003) at 4,915 tons / day of ocean dumping.

Sludge's offshore dumping is being banned internationally under the London Treaty (1972). Korea, which relies on offshore dumping, is expected to expand its ban on sludge. There is a situation.

Incineration of sewage sludge has a high initial capital investment cost and secondary pollution during disposal, which makes it difficult to promote the installation of incineration related facilities. It is difficult to secure a large amount of sludge, so there is a limit to the situation.

In order to solve such a problem, recently, a method of using sewage sludge as a construction waste material has been proposed.

FIG. 1 relates to Korean Patent No. 10-0493862 (Sewage Sludge Treatment Method and Apparatus), and the first admixture and sludge supplied to the inlet 301 as shown in the drawing are driven by a motor 303 and a screw 302 The mixture is dispersed while rotating.

In addition, while the sludge dispersed by the first admixture passes through the screw 302, the blower 305 located above the screw 302 is driven to suck gas generated when the sludge is moved, so that the hole 304a of the pipe 304 is moved. Through the purification system 307 through.

Then, the gas introduced into the purification system 307 is discharged to the discharge port 310 through the discharge pipe 309 by the malodor purification system.

On the other hand, a mixer 311 for supplying a second admixture to the mixture of the sludge passing through the screw 302 and the first admixture is provided.

The mixer 311 is composed of an inlet 314 for supplying compounds, an agitator 312 for stirring the supplied compound, a motor 315 for driving the agitator 312 and an air injector 313. It is.

Therefore, the second admixture uniformly mixed so that the compounds deposited on the stirrer 312 are formed in a lump form is supplied to the first admixture and the sludge mixture passing through the screw 302 and then mixed and agitated through the screw 302. After acting to be discharged through the outlet 316.

However, the conventional sewage sludge treatment apparatus 300 having the above-described configuration has a problem in that stirring efficiency is lowered by using the screw 302 having a general structure, so that a good covering agent may not be produced when the covering agent is manufactured.

In particular, in the case of the screw 302 is generally made of a long axis, in this case, the bending occurs by the weight (weight) of the screw 302 itself, the efficiency of stirring is lowered, as well as the screw even if partial breakage occurs (302) There was a problem that a lot of maintenance costs occur because the whole must be replaced.

In addition, since it is difficult for the operator to check the treatment process of sewage sludge, it is not possible to check the agitation state if the work is continuously performed, and eventually, after analyzing the state of the cover agent discharged through the discharge port 316 or whether there is a malfunction. It could be confirmed that the problem was not practical.

The sewage sludge cover device of the present invention for solving the above problems includes a plurality of sludge flow supply devices comprising a sludge storage tank and a screw conveyor for storing sludge and sludge; A fly ash feeder for supplying a solidification aid, a fly ash, a burner and cement, an additive feeder comprising a burner feeder, a cement feeder and a plurality of screw conveyors; A first stirring device for firstly mixing the sludge and the solidification aid from the sludge feeder and the additive feeder; A second stirrer for crushing and agitating the first mixed sludge and the solidification aid; A deodorant supply device for supplying a deodorant and a stabilizer for supplying a deodorant made of ferrous sulfate to the second stirrer; And a collecting system for collecting gas generated in the sludge stream connected to the second stirring device and passing through the second stirring device, wherein the second stirring device includes: a structure; It is installed on the upper side of the structure and forms a space therein, the upper side is composed of a rectangular shape and the lower side is a semicircular stirring tank and the upper side of the stirring tank is installed in the cover material consisting of sewage sludge, cement, and combustion materials A housing comprising a hopper which can be mixed and introduced, a sewage sludge and cement which are introduced into the space portion of the stirring tank, a plurality of covers capable of checking a state in which the combustion material is agitated, and an outlet formed on one side of the stirring tank; First and second shafts disposed outside the stirring tank of the housing and in a space formed in the stirring tank; A power unit including a motor and a reducer formed in the structure; A first power transmission device connected to the power unit and the first shaft and configured to transmit a driving force of the power unit to rotate the first shaft; A second power transmission device formed on the first and second shafts and configured to rotate the second shaft in a direction opposite to the first shaft rotated by the first power transmission device; And first and second impellers including first and second joints coupled to the first and second shafts and first and second wings detachably coupled to the first and second joints. 2 When the impeller is coupled to the first and second shafts, the first and second wing parts coupled to the first and second assemblies form an inclination angle to be symmetrical with each other in a direction in which the first and second shafts extend, and are inserted into the stirring tank of the housing. The cover material composed of sewage sludge and cement and combustion material is agitated and moved in the direction in which the discharge port is formed, and the first and second assemblies of the first and second impellers are welded to the first and second shafts. Four first and second arms to be coupled are formed at equal intervals, and include first and second arm engaging portions formed at the ends of the first and second arms, and are made of the first and second impellers. 1, 2 wings are formed on the first and second assembly + First and second wing engaging portions that can be detachably coupled to each other by the first and second arm engaging portions are formed, and one side of the first and second wing engaging portions forms a concentric circle with the first and second shafts. It is characterized by consisting of the fan-shaped first and second blades.

In the present invention, the first and second shafts of the second agitator are formed on both sides of the first and second power transmission shafts in the form of round rods, and the first and second hollow shafts are coupled to the first and second power transmission shafts. The first and second power transmission shafts and the first and second hollow shafts are coupled to each other to be fixed by welding and pins while the first and second power transmission shafts are fitted to both sides of the first and second hollow shafts. It features.

In the present invention, the distance between the first and second shafts of the first and second shafts of the second agitator is formed so that the rotation radiuses of the first and second blades of the first and second blades constituting the first and second impellers overlap each other. The first and second impellers coupled to the two shafts are formed to be staggered from each other in the direction in which the cover material is transported.

In the present invention, the inclination angle of the first and second impellers constituting the second stirring device is characterized by consisting of an angle of 58 ~ 62 °.

In the present invention, the first and second blades formed in the first and second wing portions of the first and second impellers constituting the second stirring device are stirred and moved in the cover material put into the space inside the stirring tank constituting the housing. It is characterized by consisting of a fan-shaped shape at an angle of 60 ~ 63 ° about the central axis of the first and second shafts so that the operation can be made smoothly.

In the present invention, the first and second wings formed on the first and second wings of the first and second impellers constituting the second stirring device are further characterized in that the first and second uneven portions are formed.

The present invention provides economic efficiency and convenience by recycling sewage sludge without environmental pollution by manufacturing sludges using sludges such as sludge and sewage sludge, and solidifying aids such as fly ash, combustion agent, cement and deodorant and stabilizer. can do.

In addition, the solidified cover material input through the hopper formed in the second stirring device is crushed by using the first and second impellers and agitated to improve the stirring efficiency, thereby making it possible to produce a high quality cover agent.

In addition, by forming the first and second irregularities on the surfaces of the first and second wings formed on the first and second wings of the first and second impellers formed in the second interlocking device, the crushing effect of the cover material falling from the hopper is further improved. You will be able to make a covering agent.

In addition, the first and second blades formed on the first and second blades of the first and second impellers formed in the second stirring device are formed in a fan shape so that the first and second blades are not continuous and a space is formed in some sections. It is a useful invention that can improve the stirring efficiency by acting so that the sludges and the solidification aids do not stick to the first and second blades during the stirring and conveying process of the sludges and the solidification aid.

1 is a side view showing a conventional sewage sludge treatment apparatus.
Figure 2 is a block diagram showing the sewage sludge cover according to the present invention.
Figure 3 is a front view showing a second stirring device according to the present invention.
Figure 4 is a plan view of Figure 3;
5 is a side view of FIG. 3;
6 is a plan view of the first and second shafts and the first and second impellers of the second stirring device according to the present invention.
7 is an enlarged view of a portion A of FIG. 6;

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

First, as illustrated in FIG. 2, a sludge flow supply device 110 is configured.

The sludge flow supply device 110 constitutes one or more sludge flow storage tanks 111, and a screw driven by a motor M in the lower portion of the sludge flow storage tank 111 (not shown in the drawing). ), A screw conveyor (SC) is constructed.

The sludge supply device 110 may include a plurality of sludge storage tanks 111 according to the type of sludge supplied, and is generally configured to store sludge or sewage sludge.

In particular, the screw conveyor (SC) included in the sludge feed device 110 is configured to remove some of the moisture of the sludge having a high moisture content.

Next, the additive supply device 120 includes a fly ash supply device 121, a combustion agent supply device 122, a cement supply device 123 to store the solidification aid, each supply device 121, The lower part of the 122, 123 is a screw conveyor (SC) so that the solidification aids stored in the feeder (121, 122, 123) can be smoothly stirred with the sludge of the sludge feeder 110 described above while maintaining the powder form A large number can be provided.

Next, the first stirring device 130 is configured to primarily mix the sludge flow and the solidification aid supplied from the sludge flow supply device 110 and the additive supply device 120.

Next, the second stirring device 100 is configured to receive and stir the first mixed sludge and the solidification aid from the first stirring device (130).

In particular, the second agitator 100 is capable of crushing the sludge including the solidification aid formed in a solidified form generated by the high water content of the sludge when the sludge and the solidification aid in the first stirring device (130). It is configured to be.

Here, look at the configuration of the second stirring device 100 in detail as follows.

First, as shown in FIGS. 3 to 5, the structure F is configured.

Since the structure (F) is a conventional one manufactured using a plurality of frames and plates, detailed description thereof will be omitted.

Next, the housing 10 is installed on the upper side of the structure (F), the first stirring device 130 in the stirring tank 11 and the space portion (11a) formed a space portion (11a) inwardly The hopper 12 into which the sludges and the solidification aid supplied from the hopper 12 can be put is formed at the upper portion of the stirring tank 11, and the stirring tank 11 is formed on the other side of the stirring tank 11 in which the hopper 12 is formed. The discharge port 14 for discharging the cover agent to be crushed and agitated is added to the).

Next, the first and second shafts S1 and S2 penetrate the space 11a outside and inside the stirring tank 11 constituting the housing 10 as shown in FIGS. 3 to 6. Formed.

More specifically, the first and second shafts S1 and S2 may have a pair of first and second power transmission shafts a1 and b1 outside the stirring tank 11 and the space 11a of the stirring tank 11. It is formed on both sides of the stirring tank 11 in a state inserted into a part, and the first and second hollow shafts a2 and b2 are formed between the first and second power transmission shafts a1 and b1. .

Here, the coupling between the first and second power transmission shafts a1 and b1 and the first and second hollow shafts a2 and b2 is the first and second power transmission shafts into the first and second hollow shafts a2 and b2. (a1, b1) is partly fixed by welding and pin (P) in the fitted state.

Next, the power unit 30 is composed of a motor 31 and a reducer 32 arranged in the structure (F).

Here, the power unit 30 is configured to generate a high torque as well as to reduce the rotational speed of the motor 31 that rotates quickly through the reducer 32, the first and second shafts (S1, It is good to configure so that S2) can rotate at about 50 to 60 RPM.

Next, the first power transmission device 40 is connected to the power unit 30 and the first shaft (S1) has a structure for transmitting the power generated in the power unit 30 to the first shaft (S1). .

The first power transmission device 40 may be any type as long as the configuration can transmit power.

For example, it can be formed in various ways, such as a screw type for transmitting power through a chain, a gear shape, a belt pulley for transmitting power through a belt, and more preferably, it is preferable to use a means for transmitting power at an accurate speed ratio. good.

Next, the second power transmission device 50 is formed on the first and second shafts S1 and S2 so that the second shaft S2 rotates when the first shaft S1 receives the power of the power unit 30 and rotates. ) Is also configured to rotate by receiving a rotation force.

In particular, the second power transmission device 50 is configured in such a way that the first shaft S1 and the second shaft S2 can rotate in opposite directions, but the first and second shafts S1 and S2 are It is preferable to form a gear shape in which a large force can be transmitted to the second shaft S2 while forming the same speed ratio.

Next, as shown in FIG. 7, the first and second impellers 60 and 70 may include the first and second coupling bodies 61 and 71 and the first and second coupling bodies coupled to the first and second shafts S1 and S2. 61 and 71, the first and second wings 62 and 72 are coupled to each other in a detachable form.

Here, the first and second impellers 60 and 70 are inclined angles α1 and α2 such that the first and second wings 62 and 72 are symmetrically opposite to each other when coupled to the first and second shafts S1 and S2. It is configured to form a).

That is, the first and second impellers 60 and 70 are configured, and when the first and second joints 61 and 71 are coupled to the first and second shafts S1 and S2, the inclination angles α1 and α2 are fixed. It is good to manufacture the structure which can be formed.

At this time, the inclination angle (α1, α2) is preferably formed at an angle of 58 ~ 62 ° to facilitate the transfer of the cover material.

On the other hand, look at the configuration of the first, second impeller (60, 70) as described above in more detail,

The first and second assemblies 61 and 71 are formed at equal intervals in four places of the first and second arms 61a and 71a having a structure in which the first and second assemblies 61 and 71 are joined to the first and second shafts S1 and S2 by welding. One side of the first and second arms 61a and 71a includes first and second arm coupling portions 61b and 71b.

In addition, the first and second wing portions 62 and 72 may be detachable by the first and second arm coupling portions 61b and 71b and the bolt B formed on the first and second coupling bodies 61 and 71. The first and second wing coupling parts 62b and 72b that can be engaged are formed, and one side of the first and second wing coupling parts 62b and 72b has concentric circles with the first and second shafts S1 and S2. First and second wings 62a and 72a each having a fan shape having a shape of being formed are formed.

Here, the first and second blades 62a and 72a are configured to form a fan shape at an angle of approximately 55 to 63 ° so that a space can be formed between each of the first and second wings 62a and 72a. It is preferable to construct.

In addition, a plurality of first and second uneven grooves h1 and h2 may be further formed on surfaces of the first and second wings 62a and 72a of the first and second wings 62 and 72.

The first and second uneven grooves h1 and h2 may be formed evenly on the entire surfaces of the first and second wings 62a and 72a, and may be formed in various shapes such as a triangle, a rectangle, and a trapezoid.

In particular, in the present invention, the inter-axial distance d of the first and second shafts S1 and S2 is formed in the first and second wing portions 62 and 72 constituting the first and second impellers 60 and 70. The rotation radius of the first and second blades 62a and 72a overlap each other, and the first and second impellers 60 and 70 coupled to the first and second shafts S1 and S2 are provided with cover material. It is good to configure so as to cross each other in the direction to improve the stirring efficiency.

On the other hand, the deodorant supply unit 140 and stabilizer supply unit 150 is connected to the second stirring device 100 is configured to supply a stabilizer and deodorant when stirring with the sludge stream and the solidification aid.

Here, the deodorant stored in the deodorant supply device 140 may be used a variety of materials, but preferably using a ferrous sulfate, which is inorganic.

In addition, the collection system 160 is connected to the second stirring device 100 is configured to collect the gas generated in the sludge flow.

Looking at the preferred embodiment of the sewage sludge cover device of the present invention made as described above are as follows.

First, the sludge feed device 110 and the additive feeder 120 of the sewage sludge cover device 200 of the present invention are filled with sludge and fly ash, a combustion agent, and cement, respectively.

Of course, the fly ash supply unit 121, the combustion agent supply unit 122, the cement supply unit 123 formed in the sludge flow supply unit 110 and the additive supply unit 120 as described above after filling the first drive Through the sensor (not shown) and the automation system (not shown), the sludge and the solidification aid are configured to be filled automatically when emptied below a certain amount.

On the other hand, when the operation as described above is completed, the normal power is applied to drive the sewage sludge cover device 200 of the present invention.

Then, the sludge stored in the sludge storage tank 111 of the sludge flow supply device 110 moves while only a predetermined amount passes through the screw conveyor (SC) with some moisture removed.

In addition, the fly ash, burner, and cement stored in the fly ash supply unit 121, the burner supply unit 122 and the cement supply unit 123 of the additive supply unit 120 also passes through the screw conveyor (SC). The movement is made.

On the other hand, the sludge flow and the solidification aid moved as described above is moved to the first stirring device 130, the first stirring operation is made.

Here, the first stirring device 130 is operated not to completely stir the sludge and the solidification aid, but to mix the sludge and the solidification aid that were completely separated.

On the other hand, the sludge flow and the solidification aid passed through the first stirring device 130 as described above is moved to the second stirring device (100).

Here, when the power supply of the sewage sludge cover device 200 of the present invention is applied, the second stirring device 100 is a reducer 32 connected to the motor 31 and the motor 31 of the power unit 30. Power is generated by a constant rotational speed, the generated power is transmitted to the first shaft (S1) and the second shaft (S2) through the first and second power transmission devices (40, 50) to the first, The two shafts S1 and S2 are rotated in opposite directions at the same speed ratio.

Accordingly, the first and second impellers 60 and 70 coupled to the first and second shafts S1 and S2 of the second stirring device 100 may also be rotated by the first and second shafts S1 and S2. The rotation is made together.

In the second stirring device 100 operating as described above, the sludge flow and the solidification aid, which are partially stirred while the first and second impellers 60 and 70 are rotated, are provided at the top of the stirring tank 11 of the housing 10. It enters into the space part 11a inside the stirring tank 11 through the hopper 12 formed in the inside.

Then, the sludges and the solidification aid are first and second of the first and second impellers 60 and 70 which are rotating in the space portion 11a of the stirring tank 11 formed in the second stirring device 100. The sludges and the solidification aid, which have been partially solidified, are crushed while colliding with the first and second wings 62a and 72 formed on the wings 62 and 72.

That is, since the sludge in the present invention has a high water content, the sludge is present in a solidified state in the process of firstly mixing the sludge and the solidification aid in the first stirring device 130, but is very solid because of the moisture. It is not a solidified form that is hardly formed, but is solidified in a soft state.

Accordingly, when the cover material is introduced into the space portion 11a of the stirring tank 11 through the hopper 12 formed above the stirring tank 11 of the housing 10 formed in the second stirring device 100. The effect of being crushed by the first and second vanes 62a and 72a in rotational motion forming the first and second vanes 62 and 71 of the first and second impellers 60 and 70 can be obtained. .

In particular, the first and second blades 62a and 72a formed on the first and second wing portions 62 and 72 of the first and second impellers 60 and 70 formed in the second stirring device 100 are discontinuous. Since it is composed of, the first and second blades (62a, 72a) when the fall of the cover material is solidified will be generated more efficient crushing effect.

In addition, the first and second uneven grooves h1 and h2 formed in the first and second blades 62a and 72a of the second stirring device 100 may further improve the efficiency of fracture.

That is, the first and second impellers 60 and 70 coupled to the first and second shafts S1 and S2 formed in the second stirring device 100 according to the present invention are rotated at a speed of 50 to 60 RPM.

That is, because the rotation of the wheel about one second, the high-moisture-covered material injected into the hopper 12 as described above is formed on the first and second wings 62 and 72 of the first and second impellers 60 and 70. The solidified cover material is crushed only by the impact of the first and second wings 62a and 72a. However, in the present invention, the first and second uneven grooves h1 and h2 are further formed in the first and second wings 62a and 72a. It is possible to further improve the efficiency of the crushing while having the same effect as hitting the cover material solidified on the surface.

The first and second uneven grooves h1 and h2 provide the crushing role and the efficiency of agitation even when the cover material is disposed on the bottom surface of the space portion 11a of the stirring tank 11 constituting the housing 10. Act to increase.

Moreover, the 1st, 2nd blade | wing 62a, 72a formed in the 1st, 2nd blade | wing part 62, 72 of the 1st, 2nd impeller 60, 70 comprised in the 2nd stirring apparatus 100 in this invention. Since a) is configured in a discontinuous shape as described above, the stirring is smoothly performed without sticking the cover material to the first and second blades 62a and 72a in the process of stirring the cover material.

And the axial distance d of the first and second shafts S1 and S2 to which the first and second impellers 60 and 70 coupled to the second stirring device 100 are coupled is the first and second impellers 60 and 70. Rotation radius of the first and second blades (62a, 72a) formed in the first, second blades (62, 72) of the overlapping, but alternate with each other in the direction in which the first, second shafts (S1, S2) extend Since it is formed, the stirring efficiency through the two first and second impellers (60, 70) and the transfer in the direction of the outlet 14 can be made more smoothly.

In particular, in the process of agitating the cover material by the first and second impellers 60 and 70 having a staggered form, the cover material and the cover which are transported by the first impeller 60 and the second impeller 70 are stirred. As the materials collide with each other, they serve to further improve the efficiency of stirring and crushing.

On the other hand, when the second stirring device 100 is used for a long time, breakage of the first and second wings 62 and 72 of the first and second impellers 60 and 70 often occurs.

Accordingly, in the present invention, the first and second wing parts 62 and 72 of the second stirring device 200 are configured to be detachable from the first and second coupling bodies 61 and 71 to form the first and second wing parts 62 and 62. When the breakage of 72) occurs and the crushing and agitation efficiency of the cover material is lowered, the first and second wings 62 and 72 can be easily replaced.

At this time, the replacement work of the first and second wing parts 62 and 72 can be directly replaced by a person through the cover 13 formed on the upper portion of the housing 10.

In particular, the cover 13, as well as the replacement of the first and second wings 62, 72 described above, as well as the situation that the cover material is crushed and stirred in the space portion (11a) inside the stirring tank (11) It is also configured to be able to check through the naked eye from time to time to act immediately to respond when a malfunction occurs due to component breakage.

On the other hand, in the present invention, the first and second shafts S1 and S2 are generally formed very long in order to stir the cover material.

Therefore, bending occurs due to the self-weight of the first and second shafts S1 and S2, which lowers the stirring efficiency and damages the stirring tank 11 due to deformation of the first and second shafts S1 and S2. As a phenomenon often occurs, the gap between the first and second impellers 60 and 70 and the bottom surface of the lower side of the stirring tank 11 is widened, resulting in a decrease in agitation efficiency.

Accordingly, in the present invention, the first and second power transmission shafts a1 and b1 having a round bar shape are formed in the first and second shafts S1 and S2 constituting the second stirring device 100 for power transmission and support. Are formed on both side surfaces, and the first and second hollow shafts a2 and b2 are formed between the first and second power transmission shafts a1 and b1 so that the first and second shafts S1 and S2 may be formed. By reducing the total weight, it is possible to prevent deformation due to its own weight.

In particular, in the present invention, the first bottom of the stirring tank 11 and the first and second impellers 60 and 70 through the application of the first and second shafts S1 and S2 manufactured as described above. Since the gap between the first and second blades 62a and 72a formed in the two wing portions 62 and 72 can be narrowed, the cover material on the bottom surface of the stirring tank 11 can also be stirred. It is to be able to improve the efficiency of the stirring.

That is, the first and second shafts S1 and S2 having the above-described structure may be replaced with new ones after the hollow shafts a2 and b2 are detached from the first and second power transmission shafts a1 and b1 even if damage occurs later. Since the hollow shaft (a2, b2) can be combined to act to facilitate the maintenance.

On the other hand, the covering agent produced by passing through the second stirring device 100 is to be transported and stored through a conventional conveyor belt (CV).

Although the above-described embodiments are described in the preferred embodiments of the present invention, the present invention is not limited thereto, and the present invention may be modified in various forms within the scope described in the claims of the present invention. It is obvious to ordinary technicians working in the field.

F: Structure
10: Housing
DESCRIPTION OF SYMBOLS 11 Stirring tank 11a Space part 12 Hopper 13 Cover 14 Outlet port
S1: first shaft S2: second shaft
30: power unit
31: motor 32: reducer
40: first power transmission device
50: second power transmission device
h1: 1st uneven part h2: 2nd uneven part
60: first impeller
61: first assembly 61a: first arm 61b: first arm coupling portion
62: first wing portion 62a: first wing 62b: first wing coupling portion
70: second impeller
71: second assembly 71a: second arm 71b: second arm coupling portion
72: second wing portion 72a: second wing 72b: second wing coupling portion
α1, α2: tilt angle
100: second stirring device
SC: Screw Conveyor
110: sludge feeder
111: sludge storage tank
120: entry system supply device
121: fly ash feeder 122: burner feeder
123: additive feeder
130: first stirring device
140: deodorant supply device
150: stabilizer supply device
200: sludge cover device

Claims (6)

A plurality of sludge supply apparatuses 110 including a sludge storage tank 111 and a screw conveyor (SC) for storing sludge and sludge;
An additive supply device comprising a fly ash supply device 121, a combustion agent supply device 122, a cement supply device 123, and a plurality of screw conveyors SC for supplying a solidification aid, a fly ash, a combustion agent, and a cement ( 120);
A first stirring device (130) for firstly mixing the sludge and the solidification aid from the sludge supply device (110) and the additive supply device (120);
A second stirring device (100) for crushing and agitating the first mixed sludge and the solidification aid supplied from the first stirring device (130);
It is connected to the second stirring device 100, the deodorant supply device 140 for supplying a deodorant made of ferrous sulfate to the second stirring device 100 and a stabilizer supply device 150 for supplying a stabilizer ; And
And a collecting system 160 connected to the second stirring device 100 to collect the gas generated in the sludge flowing through the second stirring device 100.
The second stirring device 100,
Structure (F);
It is installed on the upper side of the structure (F) and forms a space portion (11a) therein, the upper side is configured in a rectangular shape and the lower side is installed in the upper side of the stirring tank 11 and the stirring tank 11 made of a semicircular shape. And a plurality of covers 13 for checking a state in which a hopper 12 capable of injecting sludge and a solidification aid and sewage sludge, cement, and a combustion material introduced into the space portion 11a of the stirring tank 11 is stirred. ) And a housing 10 consisting of an outlet 14 formed on one side of the stirring tank 11;
First and second shafts S1 and S2 disposed outside the stirring tank 11 of the housing 10 and in the space part 11a formed in the stirring tank 11;
A power unit 30 including a motor 31 and a reducer 32 formed in the structure F;
A first power transmission device 40 connected to the power unit 30 and the first shaft S1 and configured to transmit a driving force of the power unit 30 so that the first shaft S1 rotates;
A second shaft S2 formed on the first and second shafts S1 and S2 and configured to rotate in a direction opposite to the first shaft S1 rotated by the first power transmission device 40. 2 power train 50;
First and second wings 61 and 71 coupled to the first and second shafts S1 and S2 and first and second wings coupled to the first and second coupling bodies 61 and 71 to be detachably attached thereto. Consisting of first and second impellers 60 and 70, including 62 and 72;
The first and second impellers 60 and 70 have first and second wings 62 and 72 which are coupled to the first and second coupling bodies 61 and 71 when the first and second impellers 60 and 70 are coupled to the first and second shafts S1 and S2. Sludges and solidification aids introduced into the stirring tank 11 of the housing 10 are agitated by forming the inclination angles α1 and α2 so as to be symmetrical with each other in the direction in which the first and second shafts S1 and S2 extend. Is configured to move in the direction in which the outlet 14 is formed,
The first and second assemblies 61 and 71 of the first and second impellers 60 and 70 are four first and second arms 61a, which are joined by welding to the first and second shafts S1 and S2. 71a) is formed at equal intervals, and includes first and second arm coupling portions 61b and 71b formed at ends of the first and second arms 61a and 71a.
The first and second wing portions 62 and 72 of the first and second impellers 60 and 70 may be bolted to the first and second arm coupling portions 61a and 71a formed on the first and second coupling bodies 61 and 71. First and second blade coupling portions 62b and 72b which are detachably coupled by (B) are formed, and the first and second shafts are provided on one side of the first and second blade coupling portions 62b and 72b. The sewage sludge covering device characterized by consisting of the fan-shaped 1st, 2nd blade | wing 62a, 72a which forms concentric circles with (S1, S2).
According to claim 1, The first and second shafts (S1, S2) formed in the second stirring device 100 is formed on both sides of the first and second power transmission shafts (a1, b1) of the round bar form, Composed of the first and second hollow shafts (a2, b2) coupled with the first and second power transmission shafts (a1, b1), the first and second power transmission shafts (a1, b1) and the first and second hollow The coupling of the shafts a2 and b2 is fixed by welding and pins P while the first and second power transmission shafts a1 and b1 are fitted to both sides of the first and second hollow shafts a2 and b2. Sewage sludge cover device characterized by letting.
The axial distance d of the first and second shafts S1 and S2 formed in the second stirring device 100 is the first and second impellers 60 and 70. First and second impellers formed so that the rotation radii of the first and second vanes 62a and 72a of the second vanes 62 and 72 overlap each other, and are coupled to the first and second shafts S1 and S2 ( 60, 70 is a sewage sludge cover device characterized in that the sludges and the solidification aid are formed to be staggered with each other in the conveying direction.
The sewage sludge covering device of claim 1, wherein the inclination angles of the first and second impellers (60, 70) formed in the second stirring device (100) are formed at an angle of 58 to 62 degrees.
According to claim 1, First and second blades 62a, which are formed in the first and second wing portions 62 and 72 of the first and second impellers 60 and 70 formed in the second stirring device 100, 72a is centered on the central axis of the first and second shafts S1 and S2 so that the agitating and moving work of the cover material injected into the space 11a inside the stirring tank 11 constituting the housing 10 can be performed smoothly. Sewage sludge cover device characterized in that it consists of a fan shape at an angle of 60 to 63 °.
The first and second vanes 62a and 72a of claim 5, wherein the first and second vanes 62 and 72 are formed on the first and second vanes 62 and 72 of the first and second impellers 60 and 70 constituting the second stirring device 100. ), The first and second uneven parts (h1, h2) is further formed sewage sludge cover device characterized in that.

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