SU1791410A1 - Slime slaking machine - Google Patents

Description

The invention relates to machines designed for the production of lime milk from quicklime, and can be used in construction, chemical, food, pulp and paper and other industries.

A known machine for extinguishing lime containing a support frame on which a drive drum is installed with perforated buckets located inside, loading trays, a pipeline for supplying water.

The disadvantages of this device are its high energy consumption (the heat released by lime during its extinction is not used), material loss due to incomplete extinction of lime (not enough), low productivity and the need for manual labor when cleaning the drum.

The aim of the invention is to reduce energy intensity, material loss from incomplete extinguishing of lime, reduce the cost of manual labor when cleaning the drum.

In FIG. 1 shows a machine for extinguishing lime, a general view; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a view B in FIG. 1; in FIG. 4 is a section BB of FIG. 2; in FIG. 5 section GG in FIG. 1.

The lime extinguishing machine consists of a support frame 1, on which a drive is installed, consisting of an electric motor 2, a gearbox 3 and a chain gear 4. On the sides of the frame 1 in the bearings 5, 6 there are two shafts 7 with support rollers 9 located on them. the drum of the machine is obliquely mounted on the rollers, resting on the rollers with its own bandages 10, 11. The drum consists of a cylindrical shell 12 and along the ends of the perforated wall 14. At the front end of the drum there is a loading tray 15 into which the raw material is fed by the loading auger through a flexible arm at 16.

1791410 A1

The aforementioned auger consists of a loading hopper 17, a cylindrical body 18 of stepwise diameter, the diameter of the initial part being larger than the diameter of the rest, the housing is made with constriction, 5 screws 19 of a step diameter and a drive 20.

The screw 19 has a larger diameter in the initial section than in the rest of the section. From the side of the loading tray, a pipe 21 for supplying water with an adjusting valve 22 is fed into the drum 10. A nozzle is installed on the pipe 21 at the place where the material enters the drum. The collector 24 runs along the entire drum and 15 is supported at the rear by a bracket 25, which is removable. The manifold has openings for water outlet. This installation allows you to more evenly supply water, i.e. the quenching process is improved; in addition, heat transfer is improved. The quenching is performed with heated water, but during the quenching process a large amount of heat is released, which goes to heat the water in the collector, and no additional sources of water heating are used. This reduces the energy intensity of the machine.

Combs 26 are installed inside the drum, which facilitate the mixing of lime, breaking the pieces, and moving the slaked lime to the discharge end of the drum, where inside the drum near its perforated wall 12, buckets 27 with perforated bottoms are installed close to the end perforated wall 13. Unloading of milk of lime is carried out through a perforated wall 13, which does not allow pieces of lime to get into the milk of lime. 40

In the center of the wall 13 there is a hole ’through which a rotary unloading chute 28 passes inside the drum. The specified hole during operation of the machine is closed by a removable perforated lid held in the grooves located on the wall by means of clamps.

The removable cover and devices for mounting it are not shown in the drawing. Tray 28 50 is made rotatable (when the drum is working, it is outside it. When unloading pieces, it was not available - it is inserted in through the hole in the perforated wall 13). · The tray is rotated about the axis 29 55 using the handle 30. The axis is supported by bearings 31.32 mounted on the auxiliary frame 33. An additional tray 34, which is directed away from the drum, adjoins the tray 28 from the outside. A tray 35 for draining milk of lime is also mounted on the frame.

Machine for extinguishing lime works as follows. Material is loaded into the feed hopper 17 of the screw. When it enters the auger, the material is compacted and crushed at the narrowing point of the housing 18, and is fed with a screw 19 to the discharge sleeve 16 into the receiving tray 15. The lime powder is transported directly (without grinding). It is possible to feed lime manually or by other means into the tray 15. From the tray 15, the material enters the drum, which, when rotated, picks up the material with combs 26, mixing and further destroying the uncrushed bulk material. Inside the drum, water is supplied, which, passing through the nozzle 23, creates a water curtain, preventing dust from the drum. Water passing through the collector 24 exits through a system of holes and enters the material located in the drum, providing its quenching. In this case, the water in the collector is heated due to the heat released during the extinction of lime. The resulting milk of lime flows down a slope through a perforated wall! 3 onto a tray 35 mounted above the pickling pit. The non-extinguished lime residues also move downhill to the wall 13, here they are captured by buckets 27 and rise up (milk of lime flows through the perforated walls of the buckets 27). Then the non-extinguished remains fall down. After the extinguishing process is completed, unpaid residues are unloaded. At the same time, with the help of the handle 30, the inclined position of the tray 28 (shown in dashed lines in the drawing), in which the remaining material is subjected to additional crushing due to impacts on the surface of the tray: from the tray 28, the remaining material falls down, is lifted by buckets and again falls onto the tray. When the tray 28 is rotated to the position indicated by the solid line, there is a mechanized unloading of residues from the drum to the additional tray 34, along which they are discharged to the side.

The use of the proposed device for extinguishing lime through the use of heat from extinguishing lime for heating water, through the use of combs and buckets near the perforated wall, will reduce material loss due to its better crushing and reduce the use of manual labor when cleaning the drum.

Claims (2)

Claim 1. Lime extinguishing machine, including a support frame, on which a drive cylindrical drum with perforated 5 buckets located inside, an unloading and loading chutes, a pipeline for supplying water, which, in order to reduce energy consumption, is installed, is installed material losses from incomplete extinguishing of lime, reducing the cost of manual labor when cleaning the drum, the drum is installed obliquely to the discharge side and is equipped with a collector and a comb installed along the drum for water supply d for mixing lime, while the perforated buckets are installed on the discharge end of the baoban, and the discharge tray is rotatable. 2. The machine according to claim 1, characterized in that, in order to increase productivity, it is equipped with a step-type loading auger located on the side of the loading tray.