JPS583732B2 - Slutzinida - Google Patents

Description

[Detailed Description of the Invention] In recent years, as waste treatment has become more closed, there have been many methods for solidifying sludge, sludge, residue, etc. and disposing of it in landfills, and various methods have been proposed.

However, either case has the following problems.

l. The treated product has high viscosity and poor fluidity, making it difficult to handle and primary blending.

11. The processed material contains indiscriminate foreign matter, which must be removed.

111. There is no powerful continuous kneading machine.

iii. Since a solid agent is added, it must be easy to stick and solidify, and it must also have good workability (cleanability).

■It must be a single, relatively simple machine that can perform continuous processing.

Therefore, the present invention aims to provide a device that can fully satisfy the above problems.

The present invention will be explained in detail below based on illustrated embodiments.
A is a crushing section that crushes the sludge, mixes additives, supplies quantitatively, and removes foreign matter, and continuously sends the sludge to the next kneading and pushing section B.

Reference numeral 1 denotes an umbrella-shaped grizzly shaft supported in a sealed drum 3, in which a large number of ring-shaped rods 13 are mounted concentrically at appropriate intervals on a large number of support frames 12 radially attached from a grain part 11 wedged to a drive shaft 10. fixed in shape.

Reference numeral 2 denotes an elastic roller rotating on the umbrella-shaped grizzly 1, which is made of a rubbery elastic body, or a rubbery elastic body whose outer periphery is coated with an elastic body such as rubber having abrasion resistance. There is.

3 is a closed drum attached to the crusher C so as to cover the crusher A, and the drive mechanism 17 of the grizzly 1 is attached to the center of the upper part.
A hopper 22 for supplying sludge is added in the vicinity.

Reference numeral 4 denotes a rotating shaft disposed on the same axis as the drive shaft 10 of the Grizzly 1, and is rotated via a motor 25 and a speed reducer.

Reference numeral 5 denotes a rotating shaft having a screw 7 and a paddle 8 that are parallel to the rotating shaft and mesh with a screw 7 and a paddle 8 provided on the rotating shaft 4. Both rotating shafts 4 and 5 are connected to the chain wheel 14.
and are interlocked via a chain 15.

Reference numeral 6 denotes a plurality of pushing blades attached to the upper part of the rotating shaft 4 so as to be located below the grizzly 1, and rotate in the opposite direction to the grizzly 1.

Reference numeral 9 denotes a hopper attached to the kneading push-in portion B, through which the rotating shafts 4 and 5 pass vertically.

16 is a discharge port opened at the bottom of the hopper 9; 7 is a drive mechanism for the drive shaft 10; 18 is a motor for driving the roller 2; 19 is a drive mechanism for the drive shaft 10;
20 is a speed reducer, 20 is a roller shaft, and 21 is a bolt for adjusting the distance between the grizzly 1 and the roller 2, which is adjusted as appropriate depending on the physical properties of the sludge.

23 is an adjustable chute connected to the lower part of the sludge supply hopper 22; 24 is an adjustment bolt for adjusting the distance between the chute 23 and the grizzly 1; 26 is positioned so as to be in contact with the lower surface of the grizzly 1; This is a scraper that scrapes off the sludge that has passed through, and is fixed to the closed drum 3.

Reference numeral 27 denotes an L-shaped guide plate provided with a comb piece 28 for preventing clogging between the ring-shaped bars 13 constituting the grizzly 1, and 29 is an adjustment bolt of the guide plate 27, which is inserted into the elongated hole 30 provided in the closed drum 3. It can be adjusted as appropriate via the

Reference numeral 31 indicates an additive supply port attached to the side surface of the closed drum 3 so as to be located at the lower part of the grizzly 1, and 32 indicates a foreign matter discharge port provided on one side of the closed drum 3.

The present invention has the above configuration, and has a sludge supply chute 2.
As the grizzly 1 rotates, the sludge supplied in a fixed quantity into the closed drum 3 from the grizzly 1 is crushed and pushed by the grizzly 1 and the roller 2 rotating in the opposite direction, and is crushed and pushed into the ring-shaped bar 13 of the grizzly 1. The sludge passes through the gap, is scraped off by the scraper 26, and falls downward due to its own weight and the feeding action of the pushing blade 6.

At that time, foreign matter mixed into the sludge cannot pass through the gap between the grizzly 1, so a guide plate 27 is arranged on the grizzly 1 so as to mesh with the ring-shaped bar 13 that constitutes the grizzly 1. It is scraped up by the comb pieces 28 and separated and discharged outside the drum 3.

In particular, since the foreign matter moves outward along the inclined surface of the grizzly 1, separation of the foreign matter is ensured.

Next, it passes through the grizzly 1 and removes its own weight and the scraper 26.
The sludge that has fallen is deposited in the hopper 9.

Then, it is pushed into the hopper 9 by screws 7 and 7' provided on two rotating shafts 4 and 5 rotating in the same direction, and is kneaded and dispersed by paddles 8 and 8', and is then mixed and dispersed at the discharge port 1.
It is extruded from 6.

As shown in FIG. 7, these screws -7, 7' have a boat-shaped cross-section and are set in a 90° phased state, and the paddles 8, 8' also have a boat-shaped cross-section like the screw 7. and are set with a 90° phase,
These are mutually rotating in the same direction within the gourd-shaped trough 9', and the outer peripheries of the paddles 8, 8' constantly maintain a small gap with the other paddles 8', 8 and the inner surface of the trough 9'. During rotation, the volume inside the trough 9' changes continuously, and the sludge is repeatedly compressed and sucked, so that sufficient kneading action is continuously performed in a short period of time, and at the same time, self-cleaning action prevents sludge from sticking and short passes. be able to.

The required degree of kneading can be maintained by combining paddles with different twist angles, and an extrusion effect is produced by the twist angles of the screw and paddles, making it possible to continuously and smoothly discharge high viscosity sludge.

The grizzly 1 in the embodiment includes a large number of ring-shaped rods 1.
3, a wire mesh, a perforated plate, a lattice-like member, etc. can be used.

However, in this case, the L-shaped guide plate 27 without the comb piece 28 is brought close to the upper surface of the grizzly 1 to separate the foreign matter.

As described above, the present invention has an umbrella-shaped grizzly that is rotatably mounted in a closed drum having a sludge supply port and a sludge discharge port, a rotating roller is arranged on the top of the grizzly, and foreign matter is placed on the top surface of the grizzly. A hopper is connected to the lower part of the crushing section provided with a guide plate for separation, and a rotating shaft having a pushing blade at the upper part and a screw and a paddle at the lower part of the hopper, and a screw and a paddle of the rotating shaft. We have installed a kneading indentation section with meshing screws and a rotating shaft with paddles arranged side by side, so even if the input sludge is discontinuous and has lumps mixed in, this will be averaged out and smooth fluidity will be imparted, allowing it to be continuously processed. While kneading, foreign substances can be separated and extrusion force can be applied to the kneaded material.

Moreover, by keeping the entire facility closed, it is possible to extremely reduce the amount of residual processed materials and the release of odors to the outside.

Furthermore, since the grizzly is inclined, it has industrially beneficial effects such as good separation of foreign substances.

[Brief explanation of drawings]

Figure 1 is a longitudinal sectional view, Figure 2 is a plan view, Figure 3 is a cross-sectional plan view of the crushing section, Figure 4 is a longitudinal sectional view of the sludge supply hopper, and Figure 5 is a partial plan view of the guide plate. , Figure 6 is a longitudinal sectional view of the same,
FIG. 7 is a sectional view taken along line 1--2 in FIG. 1. A: Crushing section, B: Kneading and pushing section,
1...Grizzly, 2...Roller, 3.
... Sealed drum, 4, 5 ... Rotating shaft, 6
...Scraper, 7,7'...Screw, 8,8'...Paddle, 9...Hopper, 10...Grizzly drive Axis, 12...
...Support frame, 13...Ring-shaped bar, 22.
... Sludge supply hopper, 27 ... Guide plate, 28 ... Comb piece, 32 ... Foreign matter discharge port.

Claims (1)

[Claims] 1. An umbrella-shaped grizzly was rotatably installed in a sealed drum having a sludge supply hopper and a foreign matter discharge port, and a rotating roller was placed on the top of the grizzly, and a guide plate for separating foreign matter was provided on the top of the grizzly. A rotating shaft having a hopper connected to the lower part of the crushing section, an upper pushing blade in the hopper, a rotating shaft with a screw and a paddle in the lower part, and a screw and paddle that mesh with the screw and paddle of the rotating shaft. A sludge kneader characterized by being provided with a kneading pushing part arranged in parallel with a shaft.