A kind of controlled-release fertilizer production resin melting device
Technical field
The utility model relates to a kind of production equipment of chemical fertilizer, especially a kind of controlled-release fertilizer production resin melting device.
Background technology
In controlled-release fertilizer production process, need a large amount of resins of melting as slowly-releasing membrane agent.Existing resin melting device utilizes spiral heater by resin melting, and simple spiral heater heating is inhomogeneous, and resin melting speed is slow, cannot produce continuously, affects production efficiency.The resin melting device that has a kind of belt stirrer, arranges agitator at the center of spiral heater, and after most of resin melting, turn on agitator stirs, and reaches the object of balanced heat, raising melting efficiency.But the melting device that this band stirs uses inconvenient, be difficult to the opportunity that agitator is opened grasp, if agitator is too early opened, resin particle is fully melting not, flow resistance is large, easily damages agitator, when serious, can burn drive motors; If agitator is opened too late, do not have due effect.Chinese patent 2009202700883 discloses a kind of " energy-saving quick-melt urea melting tank ", utilizes the guide shell guiding liquids material that is arranged on agitator periphery to form inner-outer circulation, accelerates heat conduction, reaches the object that improves urea melting efficiency.But in its course of work, the solid material of melting is not mixed in together with the liquid material of melting, when material is not fully when melting, still there is the problem that mixing arm even burns drive motors of damaging.
Summary of the invention
The purpose of this utility model is to provide a kind of controlled-release fertilizer production resin melting device simple in structure, that the thermal efficiency is high, melting speed is fast, safe and reliable, simple to operate.
For achieving the above object, the utility model adopts following technical scheme:
A kind of controlled-release fertilizer production described in the utility model comprises the housing of upper end with end socket with resin melting device, be arranged on the skirt below housing, on end socket, non-central location is provided with charge door, the lower end of described housing is provided with discharging opening, on the sidewall of housing, be provided with steam inlet and condensation-water drain, in the inner chamber of housing, be provided with coil pipe calandria, the two ends of described coil pipe calandria are connected with steam inlet and condensation-water drain respectively, the lumen centers position of described housing is provided with axis, the upper end of described axis is inserted into the center of end socket by bearing, the lower end of axis is with blade, guide shell, described guide shell and axis are coaxially arranged on blade periphery, be respectively arranged with bushing and lower screen cloth at the upper and lower of coil pipe calandria, the center of described upper bushing is connected on axis by bearing, and the center of described lower screen cloth is fixedly connected with guide shell, on the axis above upper bushing, be fixedly connected with driving lever, the position of described driving lever is lower than charge door.
The upper port of described guide shell is between upper bushing and lower screen cloth, and the upper port of guide shell is provided with diversion screen.
After adopting technique scheme, this resin melting device can separate with solid material liquid, and agitator is arranged in liquid material, thoroughly avoids the danger of blade injury and motor damage; Mixing arm promotes liquid material and realizes inner-outer circulation, promotes the melting of solid material, and it is simple in structure, the thermal efficiency is high, melting speed is fast, safe and reliable, simple to operate.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present utility model.
Detailed description of the invention
As shown in Figure 1, a kind of controlled-release fertilizer production described in the utility model with resin melting device comprise upper end with the housing 2 of end socket 1, be arranged on housing 2 skirt 3 below, on end socket 1, non-central location is provided with charge door 4, for to the interior interpolation solid material of housing 2.
The lower end of described housing 2 is provided with discharging opening 5, for discharging the liquid material after melting.On the sidewall of housing 2, be provided with steam inlet 7 and condensation-water drain 6, in the inner chamber of housing 2, be provided with coil pipe calandria 8, the two ends of described coil pipe calandria 8 are connected with steam inlet 7 and condensation-water drain 6 respectively, when work, in coil pipe calandria 8, pass into steam, in order to the solid material in heating and melting housing 2.
The lumen centers position of described housing 2 is provided with axis 9, and the upper end of described axis 9 is inserted into the center of end socket 1 by bearing, and the lower end of axis 9 is with blade 91, guide shell 92, and described guide shell 92 is coaxially arranged on blade 91 peripheries with axis 9; Axis 9 is in transmission connection by the transmission mechanisms such as belt pulley and drive motors 12, promotes liquid material and flow to the upper end of guide shell 92 from the lower end of guide shell 92, and to surrounding diffusion, realize the inside and outside circulation of liquid when axis 9 rotates by blade 91.
Be respectively arranged with bushing 81 and lower screen cloth 82 at the upper and lower of coil pipe calandria 8, upper bushing 81 is the circle flat boards with small opening, described upper bushing 81 center is connected on axis 9 by bearing, the solid material that upper bushing 81 can be sent into charge door 4 disperses, and avoids solid accumulation to affect melting effect.Described lower screen cloth 82 center is fixedly connected with guide shell 92, lower screen cloth 82Shi center is with the circular screen mesh of installing hole, guide shell 92 peripheral spaces are separated into upper and lower two parts by lower screen cloth 82, the solid particle of melting cannot not pass through lower screen cloth 82, be trapped in lower screen cloth 82 tops, the liquid material after melting can be entered below and be participated in inside and outside liquid-circulating by lower screen cloth 82.On the axis 9 above upper bushing 81, be fixedly connected with driving lever 10, the position of described driving lever 10 is lower than charge door 4.When axis 9 rotates, driving lever 10 is rotation thereupon also, constantly the material dispersion that is deposited in charge door 4 is opened.
In addition, for the solid material of avoiding falling through upper bushing 81 directly drops in guide shell 92, the upper port of described guide shell 92 is between upper bushing 81 and lower screen cloth 82, the upper port of guide shell 92 is provided with diversion screen 11, the slot size of diversion screen 11 is identical with lower screen cloth 82, can prevent that the solid particle of not melting from passing through.
Certainly, if the rotary speed of blade 91 is very fast, when liquid inner-outer circulation speed, diversion screen 11 also can be set, fall the solid particle of guide shell 92 upper port and swept along by flowing liquid, cannot enter guide shell 92.