CN216334982U - Base type pit dragging elevator for raw sludge - Google Patents

Abstract

A raw material sludge seat type pit dragging hoister comprises a head, a driving unit, a tensioning transition section, a hoisting section, a bucket chain group and a feeding section, wherein a head discharge port and an auxiliary discharge idler wheel which is obliquely arranged are arranged in the head; the tensioning device arranged on the tensioning transition section can adjust the tightness of the conveying chain; the conveying chain in the bucket chain group is a straight plate chain, and the scraper type bucket must be combined with a side plate and a bottom plate for use, so that the sludge is guaranteed to be lifted and conveyed; the feeding section is provided with a grating feeding port and a side feeding port, so that sludge can smoothly enter the elevator; the tail part of the seat type fishing pit is provided with a sealing device, so that the tail bearing is prevented from being damaged by sludge. The base type pit-dragging hoister for raw sludge provided by the utility model can smoothly hoist, convey and unload raw sludge.

Description

Base type pit dragging elevator for raw sludge

Technical Field

The utility model relates to a hoister, in particular to a raw sludge seat type pit-dragging hoister.

Background

The raw sludge comprises municipal sludge, industrial sludge, oil sludge, coal sludge and the like, and has the following properties: 1) and strong adhesion: the water content is 55-80%. The mixture can be easily agglomerated by hand, and the mixture will not be scattered after being loosened by hand. Has the characteristics of clay (commonly called cat mud) in the ceramic industry. 2) And toxicity: the toxic and harmful substances pose great threat to human bodies and environment, and closed transportation is necessary.

The traditional processing method comprises the following steps: 1) safe landfill, but has the problems that the treatment method is limited by land resources and is required for environmental protection, and the treatment method is forbidden in many ways. 2) And performing plate-frame filter pressing on the raw sludge (the water content is 55-80%) (the water content is 50%) or drying the raw sludge (the water content is 55-80%) by using a drier (the water content is 20-35%). The treated sludge is used for incineration power generation or compost innocent treatment. In the second mode, the traditional conveying mode of the raw sludge is screw plug pump pipeline conveying, and the raw sludge contains complex components, contains construction wastes (such as bricks and cement blocks), winding impurities (such as cloth and plastic bags) and the like and has strong adhesion, so that when the screw plug pump pipeline conveying is adopted, the pipeline is frequently blocked, and the operation is very unstable.

At present, the prior case that a bucket elevator is adopted to convey raw sludge is not available in China: 1) the No. 1 page of the national mechanical industry standard vertical bucket elevator (JB/T3926-. 2) On page 505 of the national design manual, "transportation machinery selection design manual", there are descriptions of the application range and classification of bucket elevators. The raw sludge is bound into lumps and is excluded. 3) The introduction of a dewatering and pit-dragging bucket elevator is provided on page 605 and 606 of the national design Manual of transportation machinery selection. It is mainly used in coal preparation plant and calcium magnesium phosphate fertilizer plant. The raw sludge is bound into lumps and is excluded.

The following problems exist in the conveying process by adopting the elevator:

1) the tail part of the elevator is positioned in the sludge pit and is submerged by sludge, and the tail part bearing is easily damaged by the sludge;

2) the conveying chain tensioning device of the elevator is generally arranged at the tail part, and the sludge receiving pit is a closed space, so that an operator is prohibited from entering the sludge receiving pit, and the tail part of the elevator is submerged by sludge, so that the conveying chain tensioning device is not suitable for being arranged at the tail part. How to take measures to tension the conveying chain is an urgent problem to be solved. The existing conveyor chain tensioning device has no means at all, and can be arranged at the head. There are a number of problems, however:

first, a motor and a speed reducer are arranged on the head. When the head shaft is tensioned, the motor and the reducer must be moved simultaneously (when the motor is moved, the motor must be powered off). After the tension degree is adjusted, the motor and the speed reducer are fixed again. This part is very heavy;

secondly, the motor and the speed reducer are arranged at the head, and the elevator can vibrate greatly when in operation. And the tensioning device is locked by means of a nut. After a period of operation, the nut must loosen. Frequent relocking is required at this time. In addition, over time, this vibration phenomenon can also damage the threads, resulting in failure of the tensioner. The failure phenomenon is better when the power of the motor is a little smaller (not more than 5.5 kw). For high power, the device can not be used at all.

The patent with the application number of 201721789548.4 'a sludge buried scraper conveyor with a non-contact type chain removing knife', the device also has the function of tightness adjustment, and the defects are that:

the tightness adjusting function in the patent refers to the change of deflection of the chain under the action of its own weight due to the elongation of the chain after being worn. In addition, the bearing seat arranged outside the shell is fixed and cannot move;

secondly, in addition, in the return section of the chain, the chain is loose. The toothed tensioning wheel is adopted, and the chain can not enter the chain when being meshed, so that the chain falling phenomenon is caused;

3) the feeding section and the tail part are positioned in a sludge pit and are submerged by sludge, and how to make the sludge smoothly enter the elevator is a technical problem to be solved urgently;

4) the sludge has strong cohesiveness, and the normal lifting and conveying of the sludge entering the elevator is required to be solved by adopting the type of conveying chain and hopper;

5) because raw material sludge has the cohesiveness, when being promoted to the head, most normally unload from the discharge opening, and a small part bonds on the bucket chain group, and how effectively let raw material sludge who bonds on the bucket chain group fall down when the discharge opening is the problem that needs to solve urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a raw sludge seat type pit-fishing hoister which can effectively hoist raw sludge and has good equipment operation.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a raw sludge seat type pit-dragging hoister comprises a head, a driving unit, a tensioning transition section, a hoisting section, a bucket chain group and a feeding section;

the head comprises a head shell, a discharge opening is formed below the head shell, a driving head shaft and a driving head wheel are arranged in the head shell, and a bucket chain group winds the driving head wheel; the discharging mechanism is arranged in front of the driving head wheel and comprises a discharging wheel, the discharging wheel is arranged on a discharging shaft, and the discharging shaft is arranged on the head shell through a bearing assembly component; the bucket chain group finishes discharging through a discharging wheel and a driving head wheel in sequence;

the tensioning transition section comprises a tensioning shell, the tensioning shell is connected with the head, a tensioning mechanism is installed at a proper position of the tensioning shell and comprises a tensioning wheel, the tensioning wheel is installed on a tensioning shaft, two ends of the tensioning shaft extend out of the shell and are assembled on a belt seat bearing, the belt seat bearing is connected with a sliding plate, the sliding plate is slidably arranged on a sliding plate moving guide rail and is adjusted up and down through a tensioning screw rod assembly, and a bucket chain group moves up and down along with the tensioning wheel to be tensioned in the up-and-down movement process of the tensioning wheel;

the lifting section comprises a lifting section shell, a bucket chain group is arranged in the lifting section shell and comprises conveying chains, the conveying chains are used in pairs, a plurality of hopper supporting plates arranged at intervals are welded between the two conveying chains, each hopper supporting plate is detachably connected with a scraper type hopper, and the scraper type hopper and the lifting section shell form a box type hopper and lift and convey raw sludge;

the feeding section comprises a feeding section and a tail assembly; the feeding section comprises a feeding section shell, a grating feeding port is arranged at the upper end of the feeding section shell, and a side feeding port is arranged at one end, close to the tail assembly, of the left part and the right part of the lower part of the feeding section shell;

the tail assembly comprises a seat type pit fishing box body, a grating feed inlet cover plate is arranged at the upper end of the seat type pit fishing box body, tail wheels are installed in the seat type pit fishing box body and installed on a tail shaft in pairs, and the two ends of the tail shaft extend out of the seat type pit fishing box body and are assembled into a whole with a tail bearing.

The discharging wheels are gears which are installed on the discharging shaft in pairs, and sealing seats are installed at the positions, extending out of the head shell, of the two ends of the discharging shaft.

When the head shell inclines upwards from left to right, the discharge wheel is arranged in front of the driving head wheel; when the head shell inclines upwards from right to left, the discharging wheel is arranged at the right front of the driving head wheel.

A bucket chain group pressing rail is installed at a proper position of the inner top surface of the tensioning shell, and an observation cover is installed above one side of the bucket chain group pressing rail.

The tensioning wheels are smooth wheels and are arranged in pairs.

The conveying chain is a welded straight plate chain and comprises a sleeve, the left side and the right side of the sleeve are welded with the inner chain plates to form a frame structure, the outer side of each inner chain plate is provided with an outer chain plate, and the frame structure and the outer chain plates are connected into a whole through pin shafts and pins.

Tensioning casing, promotion section casing, feeding section casing are by the shell body that apron, side backup pad, bottom surface backup pad constitute, and the side is fixed with the curb plate about in the shell body, and the bottom surface is fixed with the bottom plate in the shell body, and curb plate, bottom plate adopt nonmetal polymer polyethylene board to make.

And upper guide rail supporting devices are fixed in the tensioning shell, the lifting section shell and the feeding section shell, and are of a partition plate structure, and paired guide rails are arranged on the partition plate.

The tail bearing assembly comprises a bearing, wherein an inner side sealing through cover and an outer side sealing blank cover are respectively arranged at two ends of the bearing, the inner side sealing through cover and the outer side sealing blank cover are clamped with the bearing seat upper cover and the bearing seat base, and the bearing seat upper cover and the bearing seat base are assembled into a whole through a connecting piece.

The utility model relates to a raw sludge seat type pit-dragging hoister, which has the following technical effects:

1) the unloading wheel is not a smooth wheel, is a gear and is arranged in front of the driving head wheel (at the bearing section). The combination mode of the discharging wheel and the driving head wheel is equivalent to that the diameter of the driving head wheel on the hoister is increased, the polar distance value h is relatively reduced, and the discharging mode is changed from single gravity type discharging to centrifugal-gravity type discharging. When the unloading wheel starts to rotate under the drive of the bucket chain group, the bucket chain group firstly passes through the unloading wheel to lift the ascending raw material sludge, and most of the raw material sludge can be automatically unloaded from the head unloading port under the action of gravity type unloading; the bucket chain group passes through a driving head wheel arranged above the rear part of the discharging wheel, under the action of centrifugal discharging, raw material sludge bonded on the bucket chain group is thrown off, and discharging is carried out from a head discharging port again, so that the phenomenon of material return is effectively avoided.

2) To the special environment that raw materials sludge pit was located, change the straining device that traditional setting was set up at the afterbody into and set up in being close to a section changeover portion of seat formula bailing hole hoist head, like this for the straining device who sets up at the head, need not to remove motor and speed reducer simultaneously (when removing the motor, still can go on after must the outage), reduce work load, and can avoid the not hard up problem of nut that causes because motor and speed reducer vibration, guarantee that the tensioning effect is effective for a long time.

3) And the two conveying chains can be tensioned by moving up and down by adopting a smooth cylindrical tensioning wheel. Because the take-up pulley is installed in the return stroke section of chain, the chain is loose limit, adopts smooth columniform take-up pulley, and its width is greater than the width of chain, how loose again of chain, can not fall yet, can make the chain operation more steady for gear formula take-up pulley, the tooth phenomenon can not appear jumping.

4) The bucket chain group is similar to a scraper chain of an embedded scraper conveyor, the embedded scraper conveyor technology is applied to a lifter, and the bucket chain group belongs to the domestic initiative; in addition, for buried scraper conveyor, the difference lies in, this application adopts by curb plate, bottom plate, go up "case" formula hopper that guide rail strutting arrangement (baffle) and scraper blade hopper constitute, can realize effectively promoting raw materials mud, and scraper blade hopper is favorable to the later stage to be unloaded simultaneously. In addition, as the side plates, the bottom plate and the scraper blade type hopper are made of high-molecular polyethylene plates, the material has good strength and corrosion resistance, and has enough strength in a strong acid environment, and the strength ensures that the side plates, the bottom plate and the scraper blade are not deformed; on the other hand, the scraper has excellent wear resistance and ensures enough service life. Meanwhile, due to the fact that the material is non-metal material, the running noise of the equipment is greatly reduced. Meanwhile, the surface of the high-molecular polyethylene plate is smooth, the adhesion of sludge on the scraper hopper is poor, and the sludge in the shell can be scraped completely.

5) The utility model provides a conveying chain, the welding straight plate chain is called to the terminology in this application, and the material is stainless steel, frame rack. The head wheel and the tail wheel of the elevator are both in a wheel tooth structure. When the drives are meshed, the gear tooth structure can stab sludge adhered between the sleeves of the conveying chain, so that material blockage cannot occur.

6) And the components of the sludge are complex, and massive materials such as bricks, wood and the like can be arranged inside the sludge. Through setting up grid feed inlet, grid feed inlet apron, can prevent effectively that the inside card material that causes of bulky material entering scraper blade machine. Therefore, the grating feed inlet and the grating feed inlet cover plate can not be directly provided with openings.

7) Although the tail part is submerged by sludge, the sludge enters the inside of the tail part, but the conveying capacity of the equipment, namely the sludge amount conveyed out (determined by the width of the trough, the running speed and other factors) is far greater than the sludge amount flowing into the scraper conveyor, so that the phenomenon of material blocking at the tail wheel can not occur.

8) Although the tail part is submerged by sludge, the sludge enters the inside of the tail part, but the tail part bearing assembly is arranged into a split structure, and the inner side sealing through cover and the outer side sealing blank cover are both of an embedded structure. The inside sealed cover has groove to avoid the sludge damage to the bearing.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view (inclined upward from left to right) of the head portion of the present invention.

Fig. 3 is a side view of the head of the present invention.

Fig. 4 is a partial cross-sectional view at a in fig. 2.

Fig. 5 is a front view (obliquely upward from right to left) of the head part in the present invention.

Fig. 6 is a front view of the tension transition of the present invention.

Fig. 7 is a cross-sectional view at B in fig. 6.

Fig. 8 is a schematic view of direction D in fig. 6.

Fig. 9 is a schematic view of the state of the tension transition section in the present invention.

Fig. 10 is a front view of a lift section of the present invention.

Fig. 11 is a cross-sectional view at C in fig. 10.

FIG. 12 is a front view of the bucket chain set of the present invention.

FIG. 13 is a top view of the bucket chain set of the present invention.

Fig. 14 is a left side view of the bucket chain set of the present invention.

FIG. 15 is a front view of the feed section of the present invention.

Fig. 16 is a cross-sectional view at E in fig. 15.

Fig. 17 is a cross-sectional view at F in fig. 15.

Fig. 18 is a front view of a tail assembly of the present invention.

FIG. 19 is a cross-sectional view of the tail assembly of the present invention.

FIG. 20 is a front view of the tail bearing assembly of the present invention.

FIG. 21 is a cross-sectional view of the tail bearing assembly of the present invention.

In the figure: the device comprises a head 1, a driving unit 2, a tensioning transition section 3, a lifting section 4, a bucket chain group 5, a feeding section 6, a sludge receiving pit 7, a sludge transport vehicle 8, a sludge storage tank 9, a cover plate 10, a side support plate 11, a bottom support plate 12, a side plate 13, a bottom plate 14, a guide rail 15 and an upper guide rail support device 16. A head shell 1.2, a discharge opening 1.3, a discharge mechanism 1.4, a driving head shaft 1.5, a driving head wheel 1.6, fallen raw sludge 1.7, bonded raw sludge 1.1, a bearing assembly component 1.4.1, a sealing seat 1.4.2, a discharge shaft 1.4.3, a discharge wheel 1.4.4, a flat key 1.4.5, a bearing seat support 1.4.6, a connecting piece 1.4.7, a tensioning shell 3.1, a tensioning mechanism 3.2, a bucket chain group pressure rail 3.3, an observation cover 3.5, a sliding plate moving guide rail 3.2.1, a sliding plate 3.2.2, a sliding plate shaft 3.2.3, a tensioning wheel 3.2.4, a belt seat bearing 3.2.5, a tensioning screw rod component 3.2.6, raw sludge 4.1, a lifting section shell 4.2, a bucket chain group 5, a conveying chain 5.1, a bucket support plate 5.2, a scraper type bucket support plate 5.3, a scraper type positioning screw rod component 5.1.6, a tensioning screw rod component 3.2.6, a raw sludge 4.1, a lifting section shell 4.2, a lifting section shell, a pin shaft inner side face of a pin shaft, a box body, a pin shaft, a feed inlet, a pin shaft, the device comprises a grating feed port cover plate 6.2.3, a tail wheel 6.2.4, a bottom lining plate 6.2.5, a tail bearing assembly 6.2.6, a bearing seat upper cover 8.1, a connecting piece 8.2, a bearing seat base 8.3, an inner side sealing through cover 8.4, an oil cup 8.5, an outer side sealing blank cover 8.6 and a bearing 8.7.

Detailed Description

As shown in fig. 1, a raw sludge seat type pit-dragging elevator comprises a head 1, a tensioning transition section 3, a lifting section 4, a bucket chain group 5 and a feeding section 6 which are sequentially connected end to end. The pedestal pit hoist is driven by a drive unit 2. The drive unit 2 comprises a motor and a chain transmission mechanism, is arranged at the position of the head 1 and can drive the head shaft 1.5 to rotate. The driving unit 2 is controlled by a PLC intelligent control system, and the PLC intelligent control system changes the speed of the hoister by modifying the frequency value of the frequency converter, so that the conveying capacity of the raw sludge hoister can be automatically adjusted.

As shown in fig. 2 to 5, the arrangement of the head 1 may be from left to right or from right to left. The structure mainly comprises a head shell 1.2, a discharge opening 1.3, a driving head shaft 1.5 and a driving head wheel 1.6.

The head housing 1.2 is a head bearing-mounted carrier. The bearing is a tapered roller bearing in the assembly of the head bearing, and has the function of automatic centering on one hand, and can bear larger bending moment and torque on the other hand.

The discharge opening 1.3 is arranged below the head shell 1.2 and is used for discharging raw sludge.

The driving head wheels 1.6 are used in pairs, are arranged on two sides and are installed on the driving head shaft 1.5, and the two ends of the driving head shaft 1.5 are assembled and installed with the head bearing into a whole.

As shown in fig. 2-4, for better discharging, a discharging mechanism 1.4 is installed in front of the driving head wheel 1.6, and the discharging mechanism 1.4 comprises a bearing assembly 1.4.1, a sealing seat 1.4.2, a discharging shaft 1.4.3, a discharging wheel 1.4.4, a flat key 1.4.5, a bearing seat support 1.4.6 and a connecting piece 1.4.7.

The discharging wheels 1.4.4 are not smooth wheels, are gears, are used in pairs, and are fixed on two sides of the discharging shaft 1.4.3 through flat keys 1.4.5, and two ends of the discharging shaft 1.4.3 are assembled with the bearing assembly components 1.4.1.

The sealing seat 1.4.2 is fixed to the head housing 1.2 by a coupling 1.4.7.

The bearing block support 1.4.6 is welded to the head housing 1.2 and is the carrier of the bearing assembly 1.4.1. The bearing in the bearing assembly component 1.4.1 is a ball bearing, and has an automatic aligning function on one hand, and can bear larger bending moment and torque on the other hand.

As shown in fig. 2, when the raw sludge is lifted obliquely from left to right, the discharge wheel 1.4.4 is installed at the left front of the driving head wheel 1.6. The driving head wheel 1.6 rotates anticlockwise, and the driving head wheel 1.6 drives the bucket chain group 5 to move at the moment. Under the action of the bucket chain group 5, the discharging wheel 1.4.4 rotates anticlockwise.

As shown in fig. 5, when the raw sludge is obliquely lifted from right to left, the discharge wheel 1.4.4 is installed right in front of the driving head wheel 1.6; the driving head wheel 1.6 rotates clockwise, and the driving head wheel 1.6 drives the bucket chain group 5 to move at the moment. Under the action of the bucket chain group 5, the discharging wheel 1.4.4 rotates clockwise.

When the discharge wheel 1.4.4 is driven by the bucket chain group 5 to start to rotate, the bucket chain group 5 firstly passes through the discharge wheel 1.4.4, and most of the lifted raw material sludge can be automatically discharged from the head discharge opening 1.3; then the bucket chain group 5 passes through a driving head wheel 1.6 arranged at the rear upper part of the discharging wheel 1.4.4, under the action of centrifugal discharging, raw material sludge adhered on the bucket chain group 5 is thrown off and is discharged from a head discharging opening 1.3 again, thereby effectively avoiding the phenomenon of material returning.

As shown in fig. 6-9, the tension transition section 3 includes a tension housing 3.1, the upper end of the tension housing 3.1 is connected to the head 1, the lower end is connected to the lifting section 4, and a tension mechanism 3.2 is installed at a suitable position on the tension housing 3.1.

As shown in fig. 8, the tensioning housing 3.1 comprises a cover plate 10, side support plates 11, a bottom support plate 12, side plates 13, a bottom plate 14, a guide rail 15, and an upper guide rail support 16. The side support plates 11 are assembled with the cover plate 10 and the bottom support plate 12 through coupling members at upper and lower ends of the side support plates 11, respectively, to form a housing. The cover plate 10 is made of stainless steel. The side plates 13 are formed in pairs, and the side plates 13 are fixed to the side support plates 11 by countersunk screw assemblies. The side plate 13 is made of a non-metal high polymer polyethylene plate. There are no guide rails on the base plate 14 and the base plate 14 is secured to the bottom support plate 12 by countersunk screw assemblies. The bottom plate 14 is made of a non-metal high polymer polyethylene plate. The guide rails 15 are arranged in two rows and welded on the upper guide rail supporting device 16. The guide rail 15 and the upper guide rail supporting device 16 are both made of stainless steel.

As shown in fig. 6, the observation cover 3.5 is welded on the cover plate 10, the bucket chain group pressure rail 3.3 and the observation cover 3.5 are used in cooperation, and the bucket chain group pressure rail 3.3 is welded on the back of the cover plate 10.

As shown in fig. 6-7, the tensioning mechanism 3.2 includes a slide plate moving guide rail 3.2.1, a slide plate 3.2.2, a tensioning shaft 3.2.3, a tensioning wheel 3.2.4, a belt seat bearing 3.2.5, and a tensioning screw rod assembly 3.2.6. The tensioning wheels 3.2.4 are smooth wheels and are arranged in pairs, and the tensioning wheels 3.2.4 are welded on the tensioning shaft 3.2.3. The tensioning shaft 3.2.3 is fitted at both ends on a seated bearing 3.2.5. The block bearing 3.2.5 is in turn mounted on the slide plate 3.2.2 by means of a coupling. The sliding plates 3.2.2 are arranged on the left and the right respectively, each sliding plate 3.2.2 is arranged on the sliding plate moving guide rail 3.2.1 in a sliding way, and the sliding plates 3.2.2 can move back and forth along the length direction of the sliding plate moving guide rails 3.2.1. The slide plate moving guide 3.2.1 is mounted on the side support plate 11 by means of a coupling. The sliding plate 3.2.2 is provided with a screw rod, the other end of the screw rod freely passes through a connecting plate and is locked and limited by upper and lower nuts, and the connecting plate is fixed on the side supporting plate 11. The screw rod, the nut and the connecting plate form a tensioning screw rod component 3.2.6. Driven by the tensioning screw rod assembly 3.2.6, the sliding plate 3.2.2 moves up and down, so that the bucket chain group 5 is tensioned or loosened.

As shown in fig. 9, when the tensioning mechanism 3.2 adjusts the tightness of the bucket chain set 5, firstly the viewing cover 3.5 is opened and secondly the conveyor chain 5.1 is tensioned by moving the tensioning mechanism 3.2 up and down, the running direction of the tensioning mechanism 3.2 being perpendicular to the running direction of the bucket chain set 5 there.

When the upper edge of the scraper hopper 5.3 is observed to touch the bucket chain set pressure rail 3.3, the operator needs to properly release the conveyor chain at this time.

As shown in fig. 10-14, the lifter 4 includes a lifter housing 4.2, the lifter housing 4.2 being identical to the tensioner housing 3.1. A bucket chain group 5 is arranged in the lifting section shell 4.2, the bucket chain group 5 comprises conveying chains 5.1, the conveying chains 5.1 are used in pairs, a plurality of hopper supporting plates 5.2 which are arranged at intervals are welded between the two conveying chains 5.1, and each hopper supporting plate 5.2 is detachably connected with the scraper type hopper 5.3 through a connecting piece.

As shown in fig. 7-9, the conveyor chain 5.1 is a welded straight chain made of stainless steel. The conveying chain 5.1 comprises a positioning retainer ring 5.1.1, a pin 5.1.2, a sleeve 5.1.3, a pin shaft 5.1.4, an outer chain plate 5.1.5 and an inner chain plate 5.1.6. During installation, two ends of the sleeve 5.1.3 are firstly welded with the inner chain plate 5.1.6 to form a frame type structure, and then the sleeve is assembled with the outer chain plate 5.1.5 through the pin shaft 5.1.4. The pin 5.1.2 penetrates through a positioning hole on the pin shaft 5.1.4 and fixes the outer chain plate 5.1.5 together with the positioning retainer ring 5.1.1.

The scraper type hopper 5.3 is made of a nonmetal high polymer polyethylene plate, and the scraper type hopper 5.3 is combined with an upper guide rail supporting device 16 (a partition plate), a side plate 13 and a bottom plate 14 to form a box type hopper. The raw sludge 4.1 is lifted obliquely in the box-type hopper, thereby realizing the conveying function.

As shown in fig. 15-21, the feeding section 6 comprises a feeding section 6.1 and a tail assembly 6.2. The charging section 6.1 is obliquely arranged, is wholly positioned in the sludge receiving pit 7 and is submerged by the raw sludge. The big head end of the feeding section 6.1 is connected with the tail assembly 6.2, and the small head end is connected with the lifting section 4.

As shown in fig. 15-17, the feeding section 6.1 includes a feeding section housing 6.1.1, and the structure of the feeding section housing 6.1.1 is substantially the same as that of the lifting section housing 4.2, except that a cover plate at the upper end of the feeding section housing 6.1.1 is provided with a grid feeding port 6.1.2, and the grid feeding port 6.1.2 is made of stainless steel. A side feeding hole 6.1.3 is arranged at one end of the lower part of the two sides of the feeding section shell 6.1.1, which is close to the tail assembly 6.2; the grid feed inlet 6.1.2 and the side feed inlet 6.1.3 are used for raw sludge to freely enter the equipment.

As shown in fig. 18 to 19, the tail assembly 6.2 includes a seat type pit fishing box 6.2.1, the grille feeding port cover plate 6.2.3 is fixed at the upper end of the seat type pit fishing box 6.2.1 through a connecting piece, and the grille feeding port cover plate 6.2.3 is made of stainless steel. The bottom lining 6.2.5 is fixed on the inner bottom end face of the seat type fishing pit box 6.2.1 through a countersunk screw assembly. The bottom lining plate 6.2.5 has no guide rail, and the bottom lining plate 6.2.5 is made of nonmetal high polymer polyethylene plate.

The tail wheels 6.2.4 are arranged in the seat type pit fishing box body 6.2.1, the tail wheels 6.2.4 are used in pairs and are arranged on two sides, the tail wheels 6.2.4 are installed on the tail shaft 6.2.2 through flat keys, and two ends of the tail shaft 6.2.2 extend out of the seat type pit fishing box body 6.2.1 and are assembled with the tail bearing 6.2.6 into a whole.

As shown in fig. 20-21, the tail bearing assembly 6.2.6 is a split structure, the tail bearing assembly 6.2.6 includes a bearing seat upper cover 8.1 and a bearing seat base 8.3, and the bearing seat upper cover 8.1 and the bearing seat base 8.3 are assembled into a whole through a connector 8.2. The inner side sealing transparent cover 8.4 and the outer side sealing blank cover 8.6 are of an embedded structure, clamping grooves are arranged in the bearing seat upper cover 8.1 and the bearing seat base 8.3, and the inner side sealing transparent cover 8.4 and the outer side sealing blank cover 8.6 are clamped with the clamping grooves of the bearing seat upper cover 8.1 and the bearing seat base 8.3. A bearing 8.7 is arranged between the inner side sealing through cover 8.4 and the outer side sealing blank cover 8.6, the bearing 8.7 is a tapered roller bearing, on one hand, the bearing has the function of automatic centering, and on the other hand, the bearing can bear larger bending moment and torque.

An oil cup 8.5 is arranged on the bearing seat upper cover 8.1, and lubricating grease can enter the bearing 8.7. The tail bearing assembly 6.2.6 is filled with lubricating ester, and raw sludge is effectively prevented from permeating into the bearing 8.7.

In addition, a groove is processed on the inner side sealing through cover 8.4, and the bearing 8.7 can be prevented from being damaged by raw material sludge after the sealing filler 8.8 is put in.

Toxic gas in the pit is considered and cannot enter the pit. The device is typically a two-wire arrangement. When one station fails, the other station is started immediately. And after the sludge is conveyed, ventilating, and then sending people to go down to overhaul equipment.

Claims (9)

1. The utility model provides a pit lifting machine is dragged for to raw materials mud seat formula which characterized in that: comprises a head (1), a driving unit (2), a tensioning transition section (3), a lifting section (4), a bucket chain group (5) and a feeding section (6);

the head (1) comprises a head shell (1.2), a discharge opening (1.3) is arranged below the head shell (1.2), a driving head shaft (1.5) and a driving head wheel (1.6) are arranged in the head shell (1.2), and a bucket chain group (5) is wound on the driving head wheel (1.6); the discharging mechanism (1.4) is arranged in front of the driving head wheel (1.6), the discharging mechanism (1.4) comprises a discharging wheel (1.4.4), the discharging wheel (1.4.4) is arranged on a discharging shaft (1.4.3), and the discharging shaft (1.4.3) is arranged on the head shell (1.2) through a bearing assembly component (1.4.1); the bucket chain group (5) finishes discharging through a discharging wheel (1.4.4) and a driving head wheel (1.6) in sequence;

the tensioning transition section (3) comprises a tensioning shell (3.1), the tensioning shell (3.1) is connected with the head (1), a tensioning mechanism (3.2) is installed at a proper position of the tensioning shell (3.1), the tensioning mechanism (3.2) comprises a tensioning wheel (3.2.4), the tensioning wheel (3.2.4) is installed on a tensioning shaft (3.2.3), two ends of the tensioning shaft (3.2.3) extend out of the shell and are assembled on a belt seat bearing (3.2.5), the belt seat bearing (3.2.5) is connected with a sliding plate (3.2.2), the sliding plate (3.2.2) is slidably arranged on a sliding plate moving guide rail (3.2.1) and is adjusted up and down through a tensioning screw rod assembly (3.2.6), and a bucket chain set (5) is tensioned up and down along with the tensioning wheel (3.2.4) in the up and down movement process of the tensioning wheel (3.2.4);

the lifting section (4) comprises a lifting section shell (4.2), a bucket chain set (5) is arranged in the lifting section shell (4.2), the bucket chain set (5) comprises conveying chains (5.1), the conveying chains (5.1) are used in pairs, a plurality of hopper supporting plates (5.2) which are arranged at intervals are welded between the two conveying chains (5.1), each hopper supporting plate (5.2) is detachably connected with a scraper type hopper (5.3), and the scraper type hopper (5.3) and the lifting section shell (4.2) form a box type hopper and lift and convey raw sludge (4.1);

the feeding section (6) comprises a feeding section (6.1) and a tail assembly (6.2); the feeding section (6.1) comprises a feeding section shell (6.1.1), a grid feeding hole (6.1.2) is formed in the upper end of the feeding section shell (6.1.1), and a side feeding hole (6.1.3) is formed in one end, close to the tail assembly (6.2), of the left side and the right side of the lower portion of the feeding section shell;

afterbody assembly (6.2) are including seat formula drag for pit box (6.2.1), and seat formula drag for pit box (6.2.1) upper end is equipped with grid feed inlet apron (6.2.3), installs tailwheel (6.2.4) in seat formula drag for pit box (6.2.1), and tailwheel (6.2.4) are installed in pairs on tailshaft (6.2.2), and tailshaft (6.2.2) both ends stretch out seat formula drag for pit box (6.2.1) outside and assemble into an organic whole with afterbody bearing assembly (6.2.6).

2. The raw sludge seat type pit lifting machine of claim 1, characterized in that: the discharging wheel (1.4.4) is a gear, the gears are installed on the discharging shaft (1.4.3) in pairs, and the sealing seat (1.4.2) is installed at the position where the two ends of the discharging shaft (1.4.3) extend out of the head shell (1.2).

3. The raw sludge seat type pit lifting machine of claim 1, characterized in that: when the head shell (1.2) inclines upwards from left to right, the unloading wheel (1.4.4) is arranged in front of the left of the driving head wheel (1.6); when the head shell (1.2) inclines upwards from right to left, the discharge wheel (1.4.4) is arranged at the right front of the driving head wheel (1.6).

4. The raw sludge seat type pit lifting machine of claim 1, characterized in that: the bucket chain group is installed to tensioning casing (3.1) interior top surface suitable position and is pressed rail (3.3), and observation lid (3.5) are installed to bucket chain group pressure rail (3.3) one side top.

5. The raw sludge seat type pit lifting machine of claim 1, characterized in that: the tensioning wheels (3.2.4) are smooth wheels and are arranged in pairs.

6. The raw sludge seat type pit lifting machine of claim 1, characterized in that: the conveying chain (5.1) is a welded straight plate chain, the conveying chain (5.1) comprises a sleeve (5.1.3), the left side and the right side of the sleeve (5.1.3) are welded with inner chain plates (5.1.6) to form a frame structure, outer chain plates (5.1.5) are arranged on the outer sides of the inner chain plates (5.1.6), and the frame structure and the outer chain plates (5.1.5) are connected into a whole through pin shafts (5.1.4) and pins (5.1.2).

7. The raw sludge seat type pit lifting machine of claim 1, characterized in that: tensioning casing (3.1), promotion section casing (4.2), feeding section casing (6.1.1) are by apron (10), side backup pad (11), the shell body that bottom surface backup pad (12) constitute, and the side is fixed with curb plate (13) about in the shell body, and the bottom surface is fixed with bottom plate (14) in the shell body, and curb plate (13), bottom plate (14) adopt nonmetal polymer polyethylene board to make.

8. The raw sludge seat type pit elevator according to claim 7, characterized in that: all be fixed with upper guide rail strutting arrangement (16) in tensioning casing (3.1), promotion section casing (4.2), the feeding section casing (6.1.1), upper guide rail strutting arrangement (16) are the baffle structure and install on the baffle in pairs guide rail (15).

9. The raw sludge seat type pit lifting machine of claim 1, characterized in that: tail bearing assembly (6.2.6) includes bearing (8.7), and bearing (8.7) both ends are equipped with inboard sealed through lid (8.4), outside sealed stifle (8.6) respectively, and inboard sealed through lid (8.4), outside sealed stifle (8.6) and bearing frame upper cover (8.1), bearing frame base (8.3) joint, assemble an organic whole through connector (8.2) between bearing frame upper cover (8.1), bearing frame base (8.3).

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